Landscape & Garden Alerts
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Western Conifer Seed Bug capable of damaging PEX plumbing lines
General Landscape and Garden Northern Idaho
Western Conifer Seed Bug
Posted on: May 1, 2026 by Samuel DeGrey
Western Conifer Seed Bugs (Leptoglossus occidentalis,
often incorrectly referred to as "stink bugs" or "pine
beetles") are one of the west's most commonly encountered insect species.
While generally considered a mere nuisance due to the species' habit of
overwintering in human structures, western conifer seed bugs are actually
capable of damaging cross-linked polyethylene tubing (PEX) used in indoor
plumbing in many homes. When overwintering seed bugs are trapped indoors for
long periods of time during the colder months, they may attempt to
"taste" random objects with their piercing-sucking mouthparts, which
can cause leaks in the soft plastic when they pierce through the PEX line. See linked publication for further information, including on how to distinguish
western conifer seed bug damage from other forms of damage to plumbing lines.
Plastic outdoor irrigation line is unlikely to be at risk from seed bug
damage.
Homeowners have confirmed Western Conifer Seed Bug damage to
PEX plumbing line in Bonner County, Idaho in 2026. Years with increased seed
bug populations may represent higher risk of damage to pipelines. The end of
the colder months may represent a good time to inspect any indoor PEX line for
seed bug damage.
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/5D1C0B6A542A427186A697E39B9C92D0/S0008347X00002807a.pdf/damage-to-common-plumbing-materials-caused-by-overwintering-leptoglossus-occidentalis-hemiptera-coreidae.pdf
Stripe Rust Observed on Cheatgrass – Vigilance Advised for Wheat Fields
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Stripe Rust
Posted on: March 27, 2026 by Jemila Chellappa
Annual Survey
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Posted on: March 26, 2026 by Jemila Chellappa
We Didn’t Forget… We’re Getting Ready to Celebrate!
As we prepare to celebrate 25 years of the PNW Pest Alert Network, we want to hear from the people who made this journey possible — you!
Our Annual Survey is still open, and your feedback plays a critical role in shaping the future of pest alerts, GDD tools, and decision-support resources across Idaho and the Pacific Northwest.
Haven’t taken the survey yet? There’s still time!
Your input helps us:
- Improve real-time pest alerts
- Enhance GDD-based decision tools
- Deliver more region-specific, actionable insights
Bonus!
Everyone who completes the survey will be entered into a Lucky Draw, and winners will be announced during our 25-Year Celebration on May 20th!
Don’t miss out:
✔ Share your feedback
✔ Enter the lucky draw
✔ Be part of our milestone celebration
Take the survey today!
*Crop Subscribers - https://uidaho.co1.qualtrics.com/jfe/form/SV_0BQQgjBpDHFSVNk
*Garden and Landscape Subscribers - https://uidaho.co1.qualtrics.com/jfe/form/SV_cUXPcTHHBz4qQsK
Thanks for your time taking the survey!
Early Pest Detections - Codling Moth & Peach Twig Borer
Apple Treasure Valley, Treasure Valley - Idaho, Treasure Valley Oregon
Codling Moth & Peach Twig Borer
Posted on: March 24, 2026 by Jemila Chellappa
Pest Alert: Early Detection of Codling Moth & Peach Twig Borer
Location: Farmway & Karcher area, Treasure Valley, Idaho
Date: March 24, 2026
Backyard growers in the Farmway and Karcher area have reported early captures of key orchard pests in delta traps:
- Codling moth (Cydia pomonella) – 1 adult captured
- Peach twig borer (Anarsia lineatella) – 1 adult captured
These detections are earlier than typically expected, signaling that pest activity has begun in localized areas.
What This Means
- This may represent early flight initiation (biofix approaching or beginning) for both pests.
- Even low trap counts are important—they indicate the start of adult emergence.
- Warmer early-season conditions may be accelerating development.
Recommended Actions for Growers
- Deploy traps immediately if not already in place (especially in apples, pears, peaches, nectarines).
- Check traps regularly (2–3 times per week) to monitor trends.
- Record first consistent captures to establish a reliable biofix.
- Begin tracking Growing Degree Days (GDD) for precise timing of:
- Egg hatch (Codling moth)
- Larval emergence (Peach twig borer)Why It Matters
Why It Matters
Accurate timing based on trap data + GDD allows for:
- Improved spray timing
- Reduced unnecessary pesticide applications
- Better pest control and fruit protection
Stay Connected
Continue monitoring updates through the PNW Pest Alert Network for region-specific guidance and GDD-based recommendations.
Onion Growers Alert
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Cull Onion Disposal
Posted on: March 4, 2026 by Jemila Chellappa
Growers are reminded that the deadline to dispose of existing cull onion piles is March 15 to help prevent the buildup of onion pests such as onion maggot.
Key Requirements
All existing cull onion piles must be disposed of by March 15.
From March 15 to July 1, any new cull piles must be disposed of within one week of creation.
Proper disposal is essential to reduce pest development and protect nearby onion fields.
Management Options
If cull onions cannot be buried in a timely manner, piles may be treated with an approved insecticide labeled for cull piles or non-crop areas.
Approved options previously identified include:
Malathion products
Gowan Malathion 8 Flowable – EPA Reg. No. 10163-21
Malathion 5 EC – EPA Reg. No. 66330-220
(Malathion is generally the most economical option.)
Azadirachtin products
AzaGuard – EPA Reg. No. 70299-17
Ecozin Plus 1.2% ME – EPA Reg. No. 5481-559
Gowan Aza-Direct – EPA Reg. No. 71908-1-10163
Always read and follow pesticide label instructions before application.
Additional Regulations
In Malheur County, Oregon, no more than 80 tons of onion debris may be buried per acre.
State regulations related to onion maggot management and cull disposal can be found in the links below.
Additional Resources
Oregon rule: https://secure.sos.state.or.us/oard/viewSingleRule.action
Idaho rule (onion maggot section begins on page 8): https://adminrules.idaho.gov/rules/current/02/020605.pdf
Treasure Valley Onion School
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Posted on: December 19, 2025 by Jemila Chellappa
Pesticide Recertification Seminars
All Crops Treasure Valley, Treasure Valley - Idaho, Treasure Valley Oregon
Posted on: October 6, 2025 by Jemila Chellappa
Upcoming Treasure Valley Cropping Systems Seminars: Pests and Pesticides
When: Monday, October 20 & Thursday, October 23, 2025
Where: 1904 E Chicago Street, Caldwell Research and Extension Centre, University of Idaho Extension, Caldwell, Idaho
Time: 10:00 AM – 12:00 PM both days
The Treasure Valley Cropping Systems Pests and Pesticide Seminars bring together Extension specialists and regulatory experts to provide the latest updates on insect pests and pesticide regulations for Idaho growers, applicators, and agricultural professionals. Each day features two focused, one-hour sessions followed by Q&A, offering practical, research-based information to strengthen IPM practices, improve decision-making, and ensure compliance.
Cost is free/ Registration required https://forms.office.com/r/B6wWQ6Q0x8?origin=lprLink
Pesticide Credits: 4 (2 for each day)
Monday, October 20, 2025 – Insect Pests of Treasure Valley Crops
- 10:00–11:00 AM – Insect Pests and Their Management in Treasure Valley Crops
Speaker: Dr. Armando Falcon-Brindis, University of Idaho Extension
→ Focus on key insect pests, thresholds, and integrated management strategies. - 11:00 AM–12:00 PM – Classical and Emerging Horticulture Insects & Pathogens in Idaho
Speaker: Bradley Stokes, University of Idaho Extension
→ Highlights on invasive and established pests, safe pesticide use, and IPM in home and commercial horticulture.
Thursday, October 23, 2025 – Pesticides & Regulations
- 10:00–11:00 AM – Understanding Pesticide Chemistry: From Mode of Action to Resistance Management
Speaker: Dr. Marcelo Dimase, University of Idaho Extension
→ Learn how pesticide chemistry connects with field management and resistance prevention. - 11:00 AM–12:00 PM – Navigating Pesticide Regulations and Compliance in Idaho
Speaker: Blaine Sterling, Idaho State Department of Agriculture (ISDA)
→ Review Idaho licensing, record-keeping, label interpretation, and compliance requirements.
Why Attend
- Strengthen your IPM knowledge
- Stay compliant with Idaho pesticide laws
- Connect with Extension and ISDA experts
For more information or registration details, contact:
Jemila Chellappa, Ph.D.
Assistant Professor & Area Extension Educator – Cropping Systems
University of Idaho Extension, Southern Districts
Eastern Idaho Pest Alert
All Crops Eastern Idaho
Posted on: August 13, 2025 by Jemila Chellappa
EASTERN IDAHO PEST ALERT
Serving Counties: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, Power, and Teton
Date: August 8, 2025 | Volume 6, Issue 13
Disease Spotlight: Fusarium Wilt
Cause: Soil-borne fungus Fusarium oxysporum
Crops Affected: Tomatoes, peppers, cucumbers, melons
Symptoms: Yellowing leaves, wilting, stunted growth, brown vascular tissue
Management: Resistant varieties, crop rotation, soil health, sanitation, biological controls, solarization, and avoiding overwatering.
Fall Tree & Shrub Planting Tips
Why Fall is Ideal: Cooler temps, more rain, and still-warm soil encourage root growth.
Key Practice: Root washing helps correct root deformities in container plants.
Tips: Dig wide (not deep), use native soil, water wisely, mulch properly, stake only if necessary.
Codling Moth Management
Timing: 2nd generation egg hatch in most areas has begun or passed. Continue protection through Sept. 15.
Spray Schedules: Vary by location and fruit damage history (see region-specific table on page 5).
Product Guidance:
Conventional options: Spectracide, Sevin, Malathion, Bonide, etc.
Organic options: Neem oil, Cyd-X, Spinosad, pyrethrin products.
Choose different products for each generation to prevent resistance.
Fireblight Control
When: Monitor symptoms ~2 weeks after full bloom; prune infected wood during dry weather.
Chemical Controls: Copper, lime sulfur, oxytetracycline, Actigard, etc.
Biological Controls: Include Streptomycin, Blossom Protect, Serenade Optimum, Regalia, and others.
Pruning Reminder: Always disinfect tools between cuts.
Upcoming Events
IDAHO HOME GARDEN TIPS:
Aug 12: Deer Proofing Your Yard – Sara Mahdavi @ 7 PM
Aug 19: Late Season Flowers – Andy West @ 7 PM
Aug 26: Dehydrating Your Harvest
Sept 9: Understanding Manures
Sept 23: Freeze Drying Your Harvest
PLANT TALK Q&A:
Ron Patterson & Reed Findlay – Aug 12 & Aug 19 @ 7:30 PM
Contact Info:
University of Idaho Extension – Bonneville County
Reminder: Parma Field Day
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Posted on: August 11, 2025 by Jemila Chellappa
2025 Field Day at Parma
Eastern Idaho Pest Alert - July 11, 2025 | Volume 6, Issue 9
All Crops Eastern Idaho, Magic Valley
Posted on: July 16, 2025 by Jemila Chellappa
Eastern Idaho Pest Alert - July 11, 2025 | Volume 6, Issue 9
Coverage: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, Power, and Teton Counties
Prepared by: University of Idaho Extension, Bonneville County
Editor: Ron Patterson
Featured Pest Alerts
Blister Mites (Phytoptus pyri, Eriophyes mali)
Host Crops: Apples, Pears
Symptoms: Brown, blister-like galls on upper leaf surfaces; stunted growth and early leaf drop in heavy infestations
IPM Tips:
- Apply dormant oil sprays in late winter
- Monitor with a hand lens during early spring bud break
- Use sulfur dust or miticides post-bloom as needed
- Encourage predatory mites and avoid broad-spectrum insecticides
Pollinator & Predator Spotlight – Painted Lady Beetle (Mulsantina picta)
Benefits: Natural predator of aphids, mites, and soft-bodied pests
Habitat: Conifers, meadows, and gardens
Conservation Tips:
- Include native flowering plants and conifers
- Leave mulch, bark, and leaf litter undisturbed for overwintering
- Refrain from using broad-spectrum pesticides
Codling Moth (Cydia pomonella)
Current Stage: First and second generation overlap ongoing
Spray Guidance:
- High-pressure sites: Follow Option A (insecticide) or Option B (oil + insecticide) and repeat every 14–18 days
- Low-pressure sites: Begin at first egg hatch and adjust timing based on trap data
- Backyard Options: Use products like Spinosad, Malathion, or codling moth virus (Cyd-X) based on label rates
Note: See full tables (pgs. 6–7) for region-specific spray dates from Burley to Driggs
Fire Blight (Erwinia amylovora)
Symptoms: Blackened shoots resembling fire scorch; visible two weeks post-bloom
Management Tips:
- Prune on dry days and disinfect tools between cuts
- Apply protectants or resistance inducers during bloom (e.g., Actigard, Regalia)
- Apply biologicals (e.g., Blossom Protect, Serenade) at bloom or post-bloom
Backyard Note: If no blooms are present, focus on sanitation and pruning
Webinars & Upcoming Events
- July 22 – Chip Bud Grafting Fruit Trees – Bracken Henderson (7:30 PM MT)
- July 24 – Plant Talk Q&A – Ron Patterson & Reed Findlay (7:30 PM MT)
- August 12 – Deer Proofing Your Yard – Sara Mahdavi (7:00 PM MT)
- August 26 – Dehydrating Your Harvest
- Sept 9 – Understanding Manures
- Sept 23 – Freeze Drying Your Harvest
Zoom Link: https://uidaho.zoom.us/j/92616335377
More Information: Check the Attached PDF
Contact:
Lena Allen
Horticulture Secretary
University of Idaho Extension – Bonneville County
1542 E 73rd S, Idaho Falls, ID 83404
(208) 529-1390
bonneville@uidaho.edu
uidaho.edu/extension/county/bonneville
Facebook | Instagram
» Pest_Alert_July_11_2025_blister_mites_painted_lady_beetles.pdf
Eastern Idaho Pest Alert Summary June 20, 2025 | Volume 6, Issue 6
All Crops Eastern Idaho, Magic Valley
Eastern Idaho Pest Alert
Posted on: June 27, 2025 by Jemila Chellappa
Eastern Idaho Pest Alert June 20, 2025 | Volume 6, Issue 6
Coverage: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, Power, and Teton Counties
Prepared by: University of Idaho Extension, Bonneville County
Editor: Ron Patterson
Featured Pest Alerts
Raspberry Crown Borer (Pennisetia marginata)
- Pest Type: Clear-winged moth
- Damage: Larvae bore into crowns/roots, causing cane wilt, stunting, and reduced yield.
- IPM Tips:
- Remove infested canes in late summer/fall
- Eliminate nearby wild brambles
- Encourage plant vigor through irrigation
- Nighttime insecticide sprays can help
Pollinator Spotlight – Golden-Haired Flower Longhorn Beetle
- Species: Lepturobosca chrysocoma
- Role: Beneficial pollinator and wood decomposer
- Habitat: Flowers in meadows and forest edges
- Conservation Tips:
- Plant native wildflowers
- Avoid broad-spectrum insecticides
- Leave some deadwood for larval habitat
Fire Blight in Apples and Pears
- Symptoms: Blackened shoots, “burned” look after bloom
- Management:
- Prune infected shoots on dry days
- Disinfect tools between cuts
- Apply copper or antibiotics before/after rain or dew
- Note: Only spray if blossoms are still open
Codling Moth – 1st & 2nd Generation Spray Timing
- Crops at Risk: Apples, pears
- Egg Hatch Periods:
- June 9–30: Burley, Preston
- June 12–July 3: Idaho Falls, Blackfoot
- July 2: Driggs (2nd gen)
- Backyard & Commercial Tips:
- Use insecticides or oils at night for best control
- Follow region-specific timing tables
- Rotate products between generations
UPCOMING HOME GARDEN TIPS WEBINARS
View full schedule in the attached PDF
More Information Contact:
Lena Allen
Horticulture Secretary
University of Idaho
Bonneville County Extension
208.529.1390
1542 E 73rd S
Idaho Falls, ID 83404
» Pest_Alert_June_20_GoldenHaired_Flower_Longhorn_Beetle,_raspberry_crown_borer.pdf
Strawberry Root Weevil Pupa
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Strawberry Root Weevil
Posted on: June 12, 2025 by Jemila Chellappa
Strawberry Root Weevil Alert – Be on the Lookout!
Found Strawberry Root Weevil pupae in Treasure Valley: The pupa of the strawberry root weevil (Otiorhynchus ovatus) is a transitional life stage between the larva and adult, typically found in the soil near the root zone of host plants. Here are the key characteristics:
Strawberry Root Weevil – Pupal Stage Characteristics:
- Color: Initially creamy white; may turn light tan as it matures.
- Shape: Soft-bodied, oblong, and slightly curved. The body is segmented and resembles the general adult form.
- Size: About 5–7 mm in length, depending on species and development stage.
- Visibility of adult features: The legs, antennae, and developing snout (rostrum) of the adult are visible but folded close to the body.
- Habitat: Pupates in an earthen cell or cavity in the soil, usually close to the roots of infested strawberry or other host plants.
- Duration: The Pupal stage generally lasts 2–3 weeks in spring (April–June), depending on temperature and soil conditions.
- Mobility: Pupae are non-feeding and immobile.
Since pupae are hidden in the soil, they are rarely observed unless the soil is carefully excavated near the crown and roots of the plant. Refer to the attached file for a visual reference of the Strawberry Root Weevil Pupa
Strawberry root weevils (Otiorhynchus spp.) are common pests in strawberry fields across the Pacific Northwest. While adult weevils cause minor notching on leaves, the real damage comes from their larvae feeding on roots through winter and spring, leading to stunted growth, reduced yields, or even plant death in severe cases.
What to Watch For:
- Notched leaves from adult feeding (visible in early summer)
- Wilting or stunted plants from root damage
- Adults hide under plant debris during the day or emerge at night
Now is the time to inspect your strawberry fields. Check for notched leaves, look under plant debris, or monitor at night for adult activity. Early detection is key to preventing egg-laying and larval root damage.
If you notice signs, consider control options including biological (entomopathogenic nematodes), cultural (soil cultivation), or chemical treatments applied at night for best results. More management information here https://pnwhandbooks.org/insect/small-fruit/strawberry/strawberry-root-weevil
Stay alert and protect your berries!
» https://pnwhandbooks.org/insect/small-fruit/strawberry/strawberry-root-weevil
Eastern Idaho Pest Alert June 6, 2025 | Vol. 6, Issue 4
All Crops Eastern Idaho
Pest Alerts from Bonneville County – Eastern Idaho
Posted on: June 10, 2025 by Jemila Chellappa
Eastern Idaho Pest Alert June 6, 2025 | Vol. 6, Issue 4
Coverage Areas: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, and Teton Counties
CURRENT PEST AND DISEASE ISSUES
Fire Blight Alert
Fire blight risk levels are Exceptional to Extreme across most of Eastern Idaho through mid-June.
High-risk management strategies:
- Prune infected twigs and branches on dry days.
- Disinfect tools between each cut using alcohol, bleach solution, or disinfectant wipes.
- Apply antibiotics within 24 hours of a wetting event (rain or heavy dew) when blossoms are open.
- Biological control products (e.g., Blossom Protect, Double Nickel) are recommended for resistance management and organic systems.
Codling Moth Management
Egg hatch timing is highly variable due to unusual weather patterns this spring. Spray timing depends on prior fruit damage and production system.
Conventional Orchards:
- High damage history: Apply 2 sprays per generation (start with oil or insecticide).
- Low damage history: Fewer sprays needed, often just 1 per generation.
Organic Orchards:
- High damage history: 3 sprays per generation, spaced 7–10 days apart.
- Low damage history: 2 sprays per generation.
Backyard Trees:
- Treatment options include conventional (e.g., Triazicide, Sevin) and organic (e.g., Cyd-X, Neem oil, Spinosad) products. See page 7 for efficacy and timing.
Leafhoppers
- Leafhoppers feed on plant sap, causing stippling and potential fruit damage.
- Regular scouting is advised for sensitive crops like apples, pears, and grapes.
- IPM strategies include monitoring populations and protecting beneficial insects.
FRUIT PRODUCTION NOTES
Alternate Bearing in Apples
Many apple varieties alternate between heavy and light production years.
- In heavy crop years, thin fruits to reduce strain and encourage consistent yields next season.
- Thinning also improves fruit size and reduces limb breakage.
PESTICIDE AND BIOLOGICAL OPTIONS FOR FIRE BLIGHT
Refer to the full table on page 5 for:
- Antibiotic options (e.g., Oxytetracycline, Kasugamycin)
- Biological products (e.g., Serenade, BlightBan, Regalia)
- Copper-based sprays for pre-bloom or dormant application
UPCOMING HOME GARDEN TIPS WEBINARS - Check the PDF attached
View full schedule in the attached PDF or join online at:
Growing Degree Days Calculator
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Posted on: June 7, 2025 by Jemila Chellappa
New Feature Alert: Celebrate World Pest Awareness Day with PNW Pest Alert!
In honor of World Pest Awareness Day (June 6), we’re thrilled to announce a powerful new tool now available on www.pnw.pestalert.net
We’re excited to launch a brand-new tool on www.pestalert.net
Our Growing Degree Day (GDD) Calculator is now LIVE – designed to help you track pest development stages and make informed management decisions tailored to your location and crops. Check it out now: https://pnwpestalert.net/gdd/
Pest Alert – Codling Moth Activity Increasing in Apples
Apple Treasure Valley, Treasure Valley - Idaho
Codling Moth
Posted on: June 3, 2025 by Jemila Chellappa
Treasure Valley (Canyon County, Idaho)
June 2025
Moth captures confirmed from pheromone trap at local orchard (7 moths/trap/week)
Codling moth (Cydia pomonella) adult flight is active in the Treasure Valley region, with degree day (GDD) accumulations reaching ~680 (Base 50°F) as of June 2, 2025. Trap monitoring has confirmed moderate to high pressure, with 7 moths captured per trap this week.
- Track daily GDDs to prepare for second-generation sprays (expected at 1000–1100 GDD).
- Continue weekly trap monitoring to refine timing.
This timing coincides with peak first-generation egg hatch. Immediate action is advised to prevent worm damage to apples.
- Egg hatch typically begins at 250 GDD
- Peak egg hatch occurs between 650–750 GDD
- Now, in the critical larval emergence window
Recommended IPM Management Actions: Spray Immediately to Control Larvae
Apply a larvicide now to target newly hatched larvae. Follow label instructions and re-treatment intervals. Reapply if moth captures remain above the threshold.
Cultural & Mechanical Controls
- Thin fruit clusters to reduce entry points (leave one fruit per cluster, space ~6" apart).
- Remove and destroy infested or fallen fruit weekly.
- Bag fruit at quarter-size after spraying (brown paper bags or nylon footies with kaolin clay pre-soak).
- Keep trap records: If weekly trap catch exceeds 5–10 moths per trap, additional sprays may be needed.
Resistance Management
- Rotate modes of action (IRAC group) each generation to avoid resistance.
- Limit broad-spectrum insecticides that can flare up mites and reduce beneficial insects.
There are different management options to consider when controlling this pest.There are different management options to consider when controlling this pest.
https://pnwhandbooks.org/insect/tree-fruit/apple/apple-codling-moth
Option A: Starting at 200 DD, apply a mixture of water and horticultural oil at 1% concentration to smother egg infestation. Follow with the first application of insecticide at 350 DD. Reapply insecticides based on the protection interval stated on the label.
Option B: Starting at 220-250 DD, apply insecticides that target newly hatched larvae. Reapply insecticides based on the protection interval stated on the label.
The reference publication links to view insecticide options for commercial or residential sites.
This pest needs prevention all season long for clean fruit.
https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1879&context=extension_curall
https://extension.colostate.edu/topic-areas/insects/codling-moth-control-in-home-plantings-5-613/
To report pest activity in your area: https://pnwpestalert.net/submitalert/
Summer 2025 Heat Wave Forecast: Be Prepared for Heat Stress in the Field!
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Heat Wave Forecast
Posted on: June 2, 2025 by Jemila Chellappa
"Protect Yourself and Your Crew from Extreme Heat: Gear up and Stay Hydrated"
According to NOAA's Climate Prediction Center the 2025 summer forecast calls for 'overwhelmingly above normal' heat starting in June link: Please take a moment to familiarize yourself with the symptoms of heat related illnesses and what actions to take.
Environmental Health and Safety links:
Managing-heat-stress-with-faqs
CDC links:
HeatRisk | Tracking | NCEH | CDC
About Heat and Your Health | Heat Health | CDC
Heat-related Illnesses | Heat | CDC
Remember to drink plenty of fluids, wear appropriate clothing, sunscreen, and pace yourselves.
More Information: Beth Brune
Operations Manager
University of Idaho | Kimberly R&E Center, Kimberly, ID 83341
Email: bbrune@uidaho.edu
Eastern Idaho Pest Alert MAY 30, 2025 VOL. 6 ISS. 3
All Crops Eastern Idaho, Magic Valley
Pest Alerts from Bonneville County – Eastern Idaho
Posted on: June 1, 2025 by Jemila Chellappa
Coverage Areas: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, and Teton Counties
CURRENT PEST AND DISEASE ISSUES
Fire Blight Alert
- Fire blight risk levels are Exceptional to Extreme across most regions in Eastern Idaho through mid-June.
- High-risk management includes:
- Pruning out infections on dry days.
- Disinfecting tools between cuts.
- Applying antibiotics within 24 hours of a wetting event when blossoms are open.
- Consider biological control products for resistance management.
- A full table of risk periods by location is provided, with tailored spray guidance.
Codling Moth Management
- Egg hatch timing is highly variable due to weather.
- Management recommendations differ based on past fruit damage levels and whether growers use conventional or organic approaches.
- Conventional:
- Two sprays per generation recommended for high damage history.
- Fewer sprays for low-damage history, starting with oil or insecticide.
- Organic:
- Three sprays spaced 7–10 days apart for high-damage history.
- Two sprays per generation for low-damage history.
- Backyard tree treatment options include both conventional and organic products.
Leafhoppers
- Feeding causes stippling on leaf surfaces and can damage fruit.
- Monitoring and management are advised, especially for sensitive crops.
FRUIT PRODUCTION NOTES
Alternate Bearing in Apples
- Many apple varieties exhibit alternate bearing with heavy crops every other year.
- Best management is to thin fruits in heavy years to balance future yields.
PESTICIDE AND BIOLOGICAL OPTIONS FOR FIRE BLIGHT
UPCOMING HOME GARDEN TIPS WEBINARS: Check the PDF attached
Let’s work together to protect both our crops and our ecosystem. Reach out to your local Extension office for help with insect ID and integrated pest management (IPM) strategies tailored for your area https://www.uidaho.edu/extension/directory/counties
More Information, Contact:
Lena Allen
Horticulture Secretary
University of Idaho
Bonneville County Extension
208.529.1390
» Pest_Alert_May_30_2025_alternate_bearing_fruit,_leafhopper.pdf
Pest Alert: Found One Codling Moth in the Canyon County Apple Trees
Apple Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley
Apple Codling Moth
Posted on: May 28, 2025 by Jemila Chellappa
Codling moth is a key insect pest of apples and pears in Idaho. Left unmanaged, it can cause "wormy" fruit and significant crop loss.
Identification – Know the Signs & Symptoms
Stage | Identification |
Adult Moth | Grayish-brown, 1/2 inch long, with a coppery-brown band at wing tips. |
Egg | Tiny, flat, and translucent – laid singly on fruit or leaves. |
Larva | Creamy white to pink caterpillar with a dark brown head – this is the “worm.” |
Pupa | Formed in bark crevices or leaf litter in silken cocoons. |
Symptoms on Fruit:
- Small, dark entry holes ("sting") on the apple surface.
- Frass (sawdust-like excrement) near the hole.
- Tunnels inside the fruit leading to the core.
- Premature fruit drop in severe infestations.
Current Monitoring & Degree Days
- Biofix (first moth detected): Mid-May
- Current Degree Days (base 50°F): 206 DD as of May 18
- Egg hatch begins: 220–250 DD – NOW is the time for action!
Management Options
Option A: Early Prevention (Egg Smothering)
- When: At 200 DD
- Action: Apply horticultural oil (1% concentration) to suffocate eggs.
- Follow-Up: Insecticide at 350 DD.
Option B: Target Larvae
- When: 220–250 DD
- Action: Apply insecticides to kill newly hatched larvae before they burrow into fruit.
Insecticide Options: Refer https://pnwhandbooks.org/insect/tree-fruit/apple/apple-codling-moth
Always read and follow the label directions for safety and effectiveness.
Non-Chemical Options
- Fruit Bagging: Bag individual fruitlets to block larvae entry.
- Sanitation: Remove dropped fruit and prune trees to reduce overwintering sites.
- Trapping: Use pheromone traps to monitor moth flights and guide sprays.
Season-Long Strategy: Codling moth has multiple generations per season. Continue monitoring traps and tracking degree days to time follow-up sprays or control measures.
Helpful Resources
https://climate.usu.edu/includes/pestFactSheets/Codling-Moth.pdf
https://extension.colostate.edu/topic-areas/insects/codling-moth-control-in-home-plantings-5-613/
For more assistance, contact your local University of Idaho Extension office https://www.uidaho.edu/extension/directory/counties
Keep your fruit clean and healthy – act now!
Pest Alert - Eastern Idaho
All Crops Eastern Idaho
Pest Alert Newsletter - Eastern Idaho
Posted on: May 12, 2025 by Jemila Chellappa
Pest Alerts from Bonneville County – Eastern Idaho
As temperatures begin to rise across, many of us are starting to notice increased insect activity in our fields, gardens, and landscapes.
It’s natural to feel the urge to reach for an insecticide at the first sign of bugs—but we encourage you to pause and take a closer look. Not all insects are harmful, and many play important roles in pollination, natural pest control, and maintaining ecological balance.
Spraying too early or without proper identification can unintentionally harm beneficial insects and disrupt the natural balance of your growing environment. Whenever possible:
Identify the insect first—Is it a pest, a predator, or a pollinator?
Monitor populations—Are the numbers high enough to justify treatment?
Consider non-chemical options, such as biological or cultural controls.
Let’s work together to protect both our crops and our ecosystem. Reach out to your local Extension office for help with insect ID and integrated pest management (IPM) strategies tailored for your area. https://www.uidaho.edu/extension/directory/counties
Stay informed, and spray smarter! Find more information in the attached newsletter
Ag Talk Tuesdays for 2025 resume in May
All Crops All Locations
General Announcement related to Agriculture
Posted on: April 18, 2025 by Kasia Duellman
University of Idaho Extension once again presents our bi-monthly summer series, Ag Talk Tuesday.
These sessions are held live via Zoom, the first and third Tuesday of May, June, July and August every summer. Sessions start at 11:00 AM (MDT) and begin with crop updates, followed by a Featured Topic presented by an invited speaker.
Registration is required. Register only once and you will automatically be able to attend all sessions. The registration link can be found at the Ag Talk Tuesday website, https://www.uidaho.edu/ag-talk, and then by clicking on the gold bar that says "Select to register once for all sessions". The registration link is also provided below.
» https://www.uidaho.edu/ag-talk
» https://uidaho.zoom.us/meeting/register/kqdDHArFRTOKvtvx6v4nhg#/registration
Pest Alert: Grasshopper/Mormon Cricket Control Program – 2025
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Grasshopper/Mormon Cricket
Posted on: March 11, 2025 by Jemila Chellappa
Pest Alert: Grasshopper/Mormon Cricket Control Program – 2025
As we approach the growing season, the Idaho State Department of Agriculture (ISDA) would like to remind agricultural producers about the Grasshopper/Mormon Cricket Control Program available for the 2025 year. This program offers assistance in controlling these pests in areas of high infestation, potentially reducing economic losses to crops and grazing land.
Key Program Details:
Federal Lands Not Treated: Please note that federal lands are not eligible for treatment under this program.
- Eligibility for Assistance: Agricultural producers must complete the request for assistance form available on the ISDA website. To qualify for treatment, infestations must meet the following thresholds:
- 8 grasshoppers or 3 Mormon crickets per square yard.
- Land must be 5 acres or more and used for agricultural purposes (such as grazing, haying, or crop production).
- Outbreak Areas: If a significant number of requests come from a common area, ISDA may declare an Outbreak. This designation could expedite treatment by waiving individual evaluations, allowing for faster distribution of bait or reimbursement. Evaluations may still occur in some cases, but treatments will begin without the need for a threshold to be met.
How to Receive Assistance:
- Bait Distribution: Producers receiving bait will be required to sign an ISDA Bait Distribution Record and take responsibility for its proper use and storage.
- Reimbursement: To be eligible for reimbursement, producers must:
- Submit a pre-approved quote for the proposed chemical.
- Provide maps of the land to be treated with labeled land use.
- Submit a completed W9 form and an invoice showing the chemical has been paid for in full.
For additional information, visit the ISDA Website: Grasshopper/Mormon Cricket Control Program.
For any questions, contact:
Jason Ansay
Ag. Program Specialist
Grasshopper/Mormon Cricket Program Coordinator
Idaho State Dept. of Agriculture
Phone: 208-332-8556
We encourage all eligible agricultural producers to take action early to prevent economic losses caused by these pests.
PNW Pest Alert Annual Survey - 2024 Lucky Draw Winners
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Posted on: December 31, 2024 by Jemila Chellappa
Thank you to everyone who participated in our 2024 Annual Survey! Your feedback is vital to helping us improve our resources and serve you better. We also want to wish you a happy and prosperous New Year!
We’re excited to announce the winners of this year’s survey in two categories:
The Winners are
Agriculture: Crops & Small Farms
1. Paul Foote pfoote@amalsugar.com
2. Gary Harnar harnar@q.com
3. Udayakumar Sekaran udayakumar.sekaran@oregonstate.edu
Horticulture: Landscape & Gardens
The Winners are
1. Steve Cordell stevepcordell@gmail.com
2. 57woman@gmail.com
3. knpttrsn@gmail.com
Congratulations to our winners! We appreciate the time and care all participants took to share their insights, and we look forward to incorporating your suggestions to make PNWPestAlert.net even more valuable.
We also want to express our deep gratitude to our 2024 lucky draw sponsors, Snake River Sugarbeet Research and Seed Alliance, for their generous support.
Stay tuned for upcoming updates and resources, and thank you again for helping us shape the future of PNWPestAlert.net.
For more information or to share suggestions and feedback, please reach out to
JEMILA CHELLAPPA, Ph.D.
AREA EXTENSION EDUCATOR - CROPPING SYSTEMS
University of Idaho Extension, Southern District
208-459-6003 (office) | 605-690-7699 (mobile)
501 Main Street | Caldwell ID 83065 | United States
With gratitude,
The PNWPestAlert.net Team
Reminder! Take up Annual Survey 2024
All Crops All Locations
Survey Reminder
Posted on: November 22, 2024 by Jemila Chellappa
Reminder!
Take the 2024 Pest Alert Network Annual Survey and Win
Crops and Small Farms Subscribers: https://uidaho.co1.qualtrics.com/jfe/form/SV_6M7izVGWJ1pDGKy
Landscape and Gardens Subscribers:
https://uidaho.co1.qualtrics.com/jfe/form/SV_7af2iQJTcXSVZMq
We’re inviting you to participate in the 2024 Pest Alert Network Annual Survey focused on pest management. Your valuable input will help us understand pest trends and control methods and improve the Pest Alert Network!
Why Participate?
• Share your experience in pest control & management
• Help improve our pest alert services
• 3 lucky participants will be randomly selected to win a $50 gift card as a token of appreciation!
Who Should Take the Survey: PNW Pest Alert Network Subscribers
Time: Only 5-8 minutes to complete
Thank you for making pest management more effective and sustainable.
Voles - Your Mortal Enemies!
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Voles
Posted on: November 13, 2024 by Jeff Miller
Jason Thomas, University of Idaho Extension Educator, is working to better understand the impact of vole damage on Idaho farms and gather insights on how farmers like you have been affected. This information is crucial for helping us advocate for resources and support to address this issue effectively.
Please complete the 5-minute survey by clicking the link below, calling the Minidoka County Extension office at 208-436-7184 to do so over the phone or if you prefer to fill out a physical survey please email jasont@uidaho.edu with your address so he can send one out to you.
Thank you in advance for your valuable input—it makes a big difference!
https://uidaho.co1.qualtrics.
» https://uidaho.co1.qualtrics.com/jfe/form/SV_6KKoB4cTSn6p1Yy
TREASURE VALLEY PESTICIDE PRE-CERTIFICATION TRAINING
All Crops Treasure Valley, Treasure Valley - Idaho
Posted on: November 1, 2024 by Jemila Chellappa
Prepare for Your Idaho Pesticide License Exam!
Join us in person on November 8 from 8:00 am to noon at the University of Idaho Research and Extension Center for a comprehensive training program designed to help you and your team get ready for the Idaho State Department of Agriculture (ISDA) pesticide exams.
Date/Time: Friday, November 8, 8:00am - Noon
Location: UI Caldwell R & E Classroom 1904 E. Chicago St., Caldwell
Register: Call UI Extension, Canyon County 208-459-6003
What is included:
- Education on Idaho State pesticide regulations
- Training on how to effectively read and interpret pesticide labels
- Review exam preparation strategies
- Exclusive access to online practice modules and exams!
Cost: $15.00 per participant https://bit.ly/24PesTraining
This training provides an interactive way to engage with study materials, gain critical knowledge, and benefit from examples and discussions that reinforce key concepts. There will be plenty of opportunities for review and Q&A.
Special Offer:
Get free access to our online course, which includes additional resources and practice exams to help you prepare at your own pace!
Questions? Contact
canyon@uidaho.edu / 208-459-6003
The University of Idaho has a policy of nondiscrimination on the basis of race, color, religion, national origin, sex, age, sexual orientation, gender identity/expression, disability, genetic information, or status as any protected veteran or military status. Persons with disabilities who require alternative means for communication or program information or reasonable accommodations need to contact University of Idaho Extension Canyon County one (1) week prior at 501 Main St., Caldwell, 208-459-6003 or canyon@uidaho.edu.
Western Conifer Seed Bug capable of damaging PEX plumbing lines
General Landscape and Garden Northern Idaho
Western Conifer Seed Bug
Posted on: May 1, 2026 by Samuel DeGrey
Western Conifer Seed Bugs (Leptoglossus occidentalis,
often incorrectly referred to as "stink bugs" or "pine
beetles") are one of the west's most commonly encountered insect species.
While generally considered a mere nuisance due to the species' habit of
overwintering in human structures, western conifer seed bugs are actually
capable of damaging cross-linked polyethylene tubing (PEX) used in indoor
plumbing in many homes. When overwintering seed bugs are trapped indoors for
long periods of time during the colder months, they may attempt to
"taste" random objects with their piercing-sucking mouthparts, which
can cause leaks in the soft plastic when they pierce through the PEX line. See linked publication for further information, including on how to distinguish
western conifer seed bug damage from other forms of damage to plumbing lines.
Plastic outdoor irrigation line is unlikely to be at risk from seed bug
damage.
Homeowners have confirmed Western Conifer Seed Bug damage to
PEX plumbing line in Bonner County, Idaho in 2026. Years with increased seed
bug populations may represent higher risk of damage to pipelines. The end of
the colder months may represent a good time to inspect any indoor PEX line for
seed bug damage.
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/5D1C0B6A542A427186A697E39B9C92D0/S0008347X00002807a.pdf/damage-to-common-plumbing-materials-caused-by-overwintering-leptoglossus-occidentalis-hemiptera-coreidae.pdf
» Western Conifer Seed Bug (L. occidentalis)
Stripe Rust Observed on Cheatgrass – Vigilance Advised for Wheat Fields
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Stripe Rust
Posted on: March 27, 2026 by Jemila Chellappa
Annual Survey
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Posted on: March 26, 2026 by Jemila Chellappa
We Didn’t Forget… We’re Getting Ready to Celebrate!
As we prepare to celebrate 25 years of the PNW Pest Alert Network, we want to hear from the people who made this journey possible — you!
Our Annual Survey is still open, and your feedback plays a critical role in shaping the future of pest alerts, GDD tools, and decision-support resources across Idaho and the Pacific Northwest.
Haven’t taken the survey yet? There’s still time!
Your input helps us:
- Improve real-time pest alerts
- Enhance GDD-based decision tools
- Deliver more region-specific, actionable insights
Bonus!
Everyone who completes the survey will be entered into a Lucky Draw, and winners will be announced during our 25-Year Celebration on May 20th!
Don’t miss out:
✔ Share your feedback
✔ Enter the lucky draw
✔ Be part of our milestone celebration
Take the survey today!
*Crop Subscribers - https://uidaho.co1.qualtrics.com/jfe/form/SV_0BQQgjBpDHFSVNk
*Garden and Landscape Subscribers - https://uidaho.co1.qualtrics.com/jfe/form/SV_cUXPcTHHBz4qQsK
Thanks for your time taking the survey!
Early Pest Detections - Codling Moth & Peach Twig Borer
Apple Treasure Valley, Treasure Valley - Idaho, Treasure Valley Oregon
Codling Moth & Peach Twig Borer
Posted on: March 24, 2026 by Jemila Chellappa
Pest Alert: Early Detection of Codling Moth & Peach Twig Borer
Location: Farmway & Karcher area, Treasure Valley, Idaho
Date: March 24, 2026
Backyard growers in the Farmway and Karcher area have reported early captures of key orchard pests in delta traps:
- Codling moth (Cydia pomonella) – 1 adult captured
- Peach twig borer (Anarsia lineatella) – 1 adult captured
These detections are earlier than typically expected, signaling that pest activity has begun in localized areas.
What This Means
- This may represent early flight initiation (biofix approaching or beginning) for both pests.
- Even low trap counts are important—they indicate the start of adult emergence.
- Warmer early-season conditions may be accelerating development.
Recommended Actions for Growers
- Deploy traps immediately if not already in place (especially in apples, pears, peaches, nectarines).
- Check traps regularly (2–3 times per week) to monitor trends.
- Record first consistent captures to establish a reliable biofix.
- Begin tracking Growing Degree Days (GDD) for precise timing of:
- Egg hatch (Codling moth)
- Larval emergence (Peach twig borer)Why It Matters
Why It Matters
Accurate timing based on trap data + GDD allows for:
- Improved spray timing
- Reduced unnecessary pesticide applications
- Better pest control and fruit protection
Stay Connected
Continue monitoring updates through the PNW Pest Alert Network for region-specific guidance and GDD-based recommendations.
Onion Growers Alert
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Cull Onion Disposal
Posted on: March 4, 2026 by Jemila Chellappa
Growers are reminded that the deadline to dispose of existing cull onion piles is March 15 to help prevent the buildup of onion pests such as onion maggot.
Key Requirements
All existing cull onion piles must be disposed of by March 15.
From March 15 to July 1, any new cull piles must be disposed of within one week of creation.
Proper disposal is essential to reduce pest development and protect nearby onion fields.
Management Options
If cull onions cannot be buried in a timely manner, piles may be treated with an approved insecticide labeled for cull piles or non-crop areas.
Approved options previously identified include:
Malathion products
Gowan Malathion 8 Flowable – EPA Reg. No. 10163-21
Malathion 5 EC – EPA Reg. No. 66330-220
(Malathion is generally the most economical option.)
Azadirachtin products
AzaGuard – EPA Reg. No. 70299-17
Ecozin Plus 1.2% ME – EPA Reg. No. 5481-559
Gowan Aza-Direct – EPA Reg. No. 71908-1-10163
Always read and follow pesticide label instructions before application.
Additional Regulations
In Malheur County, Oregon, no more than 80 tons of onion debris may be buried per acre.
State regulations related to onion maggot management and cull disposal can be found in the links below.
Additional Resources
Oregon rule: https://secure.sos.state.or.us/oard/viewSingleRule.action
Idaho rule (onion maggot section begins on page 8): https://adminrules.idaho.gov/rules/current/02/020605.pdf
» ODA Onion Maggot Cull Letter
Treasure Valley Onion School
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Posted on: December 19, 2025 by Jemila Chellappa
» Treasure_Valley_Onion_Workshop_Revised.pdf
Pesticide Recertification Seminars
All Crops Treasure Valley, Treasure Valley - Idaho, Treasure Valley Oregon
Posted on: October 6, 2025 by Jemila Chellappa
Upcoming Treasure Valley Cropping Systems Seminars: Pests and Pesticides
When: Monday, October 20 & Thursday, October 23, 2025
Where: 1904 E Chicago Street, Caldwell Research and Extension Centre, University of Idaho Extension, Caldwell, Idaho
Time: 10:00 AM – 12:00 PM both days
The Treasure Valley Cropping Systems Pests and Pesticide Seminars bring together Extension specialists and regulatory experts to provide the latest updates on insect pests and pesticide regulations for Idaho growers, applicators, and agricultural professionals. Each day features two focused, one-hour sessions followed by Q&A, offering practical, research-based information to strengthen IPM practices, improve decision-making, and ensure compliance.
Cost is free/ Registration required https://forms.office.com/r/B6wWQ6Q0x8?origin=lprLink
Pesticide Credits: 4 (2 for each day)
Monday, October 20, 2025 – Insect Pests of Treasure Valley Crops
- 10:00–11:00 AM – Insect Pests and Their Management in Treasure Valley Crops
Speaker: Dr. Armando Falcon-Brindis, University of Idaho Extension
→ Focus on key insect pests, thresholds, and integrated management strategies. - 11:00 AM–12:00 PM – Classical and Emerging Horticulture Insects & Pathogens in Idaho
Speaker: Bradley Stokes, University of Idaho Extension
→ Highlights on invasive and established pests, safe pesticide use, and IPM in home and commercial horticulture.
Thursday, October 23, 2025 – Pesticides & Regulations
- 10:00–11:00 AM – Understanding Pesticide Chemistry: From Mode of Action to Resistance Management
Speaker: Dr. Marcelo Dimase, University of Idaho Extension
→ Learn how pesticide chemistry connects with field management and resistance prevention. - 11:00 AM–12:00 PM – Navigating Pesticide Regulations and Compliance in Idaho
Speaker: Blaine Sterling, Idaho State Department of Agriculture (ISDA)
→ Review Idaho licensing, record-keeping, label interpretation, and compliance requirements.
Why Attend
- Strengthen your IPM knowledge
- Stay compliant with Idaho pesticide laws
- Connect with Extension and ISDA experts
For more information or registration details, contact:
Jemila Chellappa, Ph.D.
Assistant Professor & Area Extension Educator – Cropping Systems
University of Idaho Extension, Southern Districts
Eastern Idaho Pest Alert
All Crops Eastern Idaho
Posted on: August 13, 2025 by Jemila Chellappa
EASTERN IDAHO PEST ALERT
Serving Counties: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, Power, and Teton
Date: August 8, 2025 | Volume 6, Issue 13
Disease Spotlight: Fusarium Wilt
Cause: Soil-borne fungus Fusarium oxysporum
Crops Affected: Tomatoes, peppers, cucumbers, melons
Symptoms: Yellowing leaves, wilting, stunted growth, brown vascular tissue
Management: Resistant varieties, crop rotation, soil health, sanitation, biological controls, solarization, and avoiding overwatering.
Fall Tree & Shrub Planting Tips
Why Fall is Ideal: Cooler temps, more rain, and still-warm soil encourage root growth.
Key Practice: Root washing helps correct root deformities in container plants.
Tips: Dig wide (not deep), use native soil, water wisely, mulch properly, stake only if necessary.
Codling Moth Management
Timing: 2nd generation egg hatch in most areas has begun or passed. Continue protection through Sept. 15.
Spray Schedules: Vary by location and fruit damage history (see region-specific table on page 5).
Product Guidance:
Conventional options: Spectracide, Sevin, Malathion, Bonide, etc.
Organic options: Neem oil, Cyd-X, Spinosad, pyrethrin products.
Choose different products for each generation to prevent resistance.
Fireblight Control
When: Monitor symptoms ~2 weeks after full bloom; prune infected wood during dry weather.
Chemical Controls: Copper, lime sulfur, oxytetracycline, Actigard, etc.
Biological Controls: Include Streptomycin, Blossom Protect, Serenade Optimum, Regalia, and others.
Pruning Reminder: Always disinfect tools between cuts.
Upcoming Events
IDAHO HOME GARDEN TIPS:
Aug 12: Deer Proofing Your Yard – Sara Mahdavi @ 7 PM
Aug 19: Late Season Flowers – Andy West @ 7 PM
Aug 26: Dehydrating Your Harvest
Sept 9: Understanding Manures
Sept 23: Freeze Drying Your Harvest
PLANT TALK Q&A:
Ron Patterson & Reed Findlay – Aug 12 & Aug 19 @ 7:30 PM
Contact Info:
University of Idaho Extension – Bonneville County
» AUGUST 8, 2025| VOL. 6 ISS. 13
Reminder: Parma Field Day
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Posted on: August 11, 2025 by Jemila Chellappa
2025 Field Day at Parma
Eastern Idaho Pest Alert - July 11, 2025 | Volume 6, Issue 9
All Crops Eastern Idaho, Magic Valley
Posted on: July 16, 2025 by Jemila Chellappa
Eastern Idaho Pest Alert - July 11, 2025 | Volume 6, Issue 9
Coverage: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, Power, and Teton Counties
Prepared by: University of Idaho Extension, Bonneville County
Editor: Ron Patterson
Featured Pest Alerts
Blister Mites (Phytoptus pyri, Eriophyes mali)
Host Crops: Apples, Pears
Symptoms: Brown, blister-like galls on upper leaf surfaces; stunted growth and early leaf drop in heavy infestations
IPM Tips:
- Apply dormant oil sprays in late winter
- Monitor with a hand lens during early spring bud break
- Use sulfur dust or miticides post-bloom as needed
- Encourage predatory mites and avoid broad-spectrum insecticides
Pollinator & Predator Spotlight – Painted Lady Beetle (Mulsantina picta)
Benefits: Natural predator of aphids, mites, and soft-bodied pests
Habitat: Conifers, meadows, and gardens
Conservation Tips:
- Include native flowering plants and conifers
- Leave mulch, bark, and leaf litter undisturbed for overwintering
- Refrain from using broad-spectrum pesticides
Codling Moth (Cydia pomonella)
Current Stage: First and second generation overlap ongoing
Spray Guidance:
- High-pressure sites: Follow Option A (insecticide) or Option B (oil + insecticide) and repeat every 14–18 days
- Low-pressure sites: Begin at first egg hatch and adjust timing based on trap data
- Backyard Options: Use products like Spinosad, Malathion, or codling moth virus (Cyd-X) based on label rates
Note: See full tables (pgs. 6–7) for region-specific spray dates from Burley to Driggs
Fire Blight (Erwinia amylovora)
Symptoms: Blackened shoots resembling fire scorch; visible two weeks post-bloom
Management Tips:
- Prune on dry days and disinfect tools between cuts
- Apply protectants or resistance inducers during bloom (e.g., Actigard, Regalia)
- Apply biologicals (e.g., Blossom Protect, Serenade) at bloom or post-bloom
Backyard Note: If no blooms are present, focus on sanitation and pruning
Webinars & Upcoming Events
- July 22 – Chip Bud Grafting Fruit Trees – Bracken Henderson (7:30 PM MT)
- July 24 – Plant Talk Q&A – Ron Patterson & Reed Findlay (7:30 PM MT)
- August 12 – Deer Proofing Your Yard – Sara Mahdavi (7:00 PM MT)
- August 26 – Dehydrating Your Harvest
- Sept 9 – Understanding Manures
- Sept 23 – Freeze Drying Your Harvest
Zoom Link: https://uidaho.zoom.us/j/92616335377
More Information: Check the Attached PDF
Contact:
Lena Allen
Horticulture Secretary
University of Idaho Extension – Bonneville County
1542 E 73rd S, Idaho Falls, ID 83404
(208) 529-1390
bonneville@uidaho.edu
uidaho.edu/extension/county/bonneville
Facebook | Instagram
» Pest_Alert_July_11_2025_blister_mites_painted_lady_beetles.pdf
Eastern Idaho Pest Alert Summary June 20, 2025 | Volume 6, Issue 6
All Crops Eastern Idaho, Magic Valley
Eastern Idaho Pest Alert
Posted on: June 27, 2025 by Jemila Chellappa
Eastern Idaho Pest Alert June 20, 2025 | Volume 6, Issue 6
Coverage: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, Power, and Teton Counties
Prepared by: University of Idaho Extension, Bonneville County
Editor: Ron Patterson
Featured Pest Alerts
Raspberry Crown Borer (Pennisetia marginata)
- Pest Type: Clear-winged moth
- Damage: Larvae bore into crowns/roots, causing cane wilt, stunting, and reduced yield.
- IPM Tips:
- Remove infested canes in late summer/fall
- Eliminate nearby wild brambles
- Encourage plant vigor through irrigation
- Nighttime insecticide sprays can help
Pollinator Spotlight – Golden-Haired Flower Longhorn Beetle
- Species: Lepturobosca chrysocoma
- Role: Beneficial pollinator and wood decomposer
- Habitat: Flowers in meadows and forest edges
- Conservation Tips:
- Plant native wildflowers
- Avoid broad-spectrum insecticides
- Leave some deadwood for larval habitat
Fire Blight in Apples and Pears
- Symptoms: Blackened shoots, “burned” look after bloom
- Management:
- Prune infected shoots on dry days
- Disinfect tools between cuts
- Apply copper or antibiotics before/after rain or dew
- Note: Only spray if blossoms are still open
Codling Moth – 1st & 2nd Generation Spray Timing
- Crops at Risk: Apples, pears
- Egg Hatch Periods:
- June 9–30: Burley, Preston
- June 12–July 3: Idaho Falls, Blackfoot
- July 2: Driggs (2nd gen)
- Backyard & Commercial Tips:
- Use insecticides or oils at night for best control
- Follow region-specific timing tables
- Rotate products between generations
UPCOMING HOME GARDEN TIPS WEBINARS
View full schedule in the attached PDF
More Information Contact:
Lena Allen
Horticulture Secretary
University of Idaho
Bonneville County Extension
208.529.1390
1542 E 73rd S
Idaho Falls, ID 83404
» Pest_Alert_June_20_GoldenHaired_Flower_Longhorn_Beetle,_raspberry_crown_borer.pdf
Strawberry Root Weevil Pupa
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho, Treasure Valley Oregon
Strawberry Root Weevil
Posted on: June 12, 2025 by Jemila Chellappa
Strawberry Root Weevil Alert – Be on the Lookout!
Found Strawberry Root Weevil pupae in Treasure Valley: The pupa of the strawberry root weevil (Otiorhynchus ovatus) is a transitional life stage between the larva and adult, typically found in the soil near the root zone of host plants. Here are the key characteristics:
Strawberry Root Weevil – Pupal Stage Characteristics:
- Color: Initially creamy white; may turn light tan as it matures.
- Shape: Soft-bodied, oblong, and slightly curved. The body is segmented and resembles the general adult form.
- Size: About 5–7 mm in length, depending on species and development stage.
- Visibility of adult features: The legs, antennae, and developing snout (rostrum) of the adult are visible but folded close to the body.
- Habitat: Pupates in an earthen cell or cavity in the soil, usually close to the roots of infested strawberry or other host plants.
- Duration: The Pupal stage generally lasts 2–3 weeks in spring (April–June), depending on temperature and soil conditions.
- Mobility: Pupae are non-feeding and immobile.
Since pupae are hidden in the soil, they are rarely observed unless the soil is carefully excavated near the crown and roots of the plant. Refer to the attached file for a visual reference of the Strawberry Root Weevil Pupa
Strawberry root weevils (Otiorhynchus spp.) are common pests in strawberry fields across the Pacific Northwest. While adult weevils cause minor notching on leaves, the real damage comes from their larvae feeding on roots through winter and spring, leading to stunted growth, reduced yields, or even plant death in severe cases.
What to Watch For:
- Notched leaves from adult feeding (visible in early summer)
- Wilting or stunted plants from root damage
- Adults hide under plant debris during the day or emerge at night
Now is the time to inspect your strawberry fields. Check for notched leaves, look under plant debris, or monitor at night for adult activity. Early detection is key to preventing egg-laying and larval root damage.
If you notice signs, consider control options including biological (entomopathogenic nematodes), cultural (soil cultivation), or chemical treatments applied at night for best results. More management information here https://pnwhandbooks.org/insect/small-fruit/strawberry/strawberry-root-weevil
Stay alert and protect your berries!
» https://pnwhandbooks.org/insect/small-fruit/strawberry/strawberry-root-weevil
Eastern Idaho Pest Alert June 6, 2025 | Vol. 6, Issue 4
All Crops Eastern Idaho
Pest Alerts from Bonneville County – Eastern Idaho
Posted on: June 10, 2025 by Jemila Chellappa
Eastern Idaho Pest Alert June 6, 2025 | Vol. 6, Issue 4
Coverage Areas: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, and Teton Counties
CURRENT PEST AND DISEASE ISSUES
Fire Blight Alert
Fire blight risk levels are Exceptional to Extreme across most of Eastern Idaho through mid-June.
High-risk management strategies:
- Prune infected twigs and branches on dry days.
- Disinfect tools between each cut using alcohol, bleach solution, or disinfectant wipes.
- Apply antibiotics within 24 hours of a wetting event (rain or heavy dew) when blossoms are open.
- Biological control products (e.g., Blossom Protect, Double Nickel) are recommended for resistance management and organic systems.
Codling Moth Management
Egg hatch timing is highly variable due to unusual weather patterns this spring. Spray timing depends on prior fruit damage and production system.
Conventional Orchards:
- High damage history: Apply 2 sprays per generation (start with oil or insecticide).
- Low damage history: Fewer sprays needed, often just 1 per generation.
Organic Orchards:
- High damage history: 3 sprays per generation, spaced 7–10 days apart.
- Low damage history: 2 sprays per generation.
Backyard Trees:
- Treatment options include conventional (e.g., Triazicide, Sevin) and organic (e.g., Cyd-X, Neem oil, Spinosad) products. See page 7 for efficacy and timing.
Leafhoppers
- Leafhoppers feed on plant sap, causing stippling and potential fruit damage.
- Regular scouting is advised for sensitive crops like apples, pears, and grapes.
- IPM strategies include monitoring populations and protecting beneficial insects.
FRUIT PRODUCTION NOTES
Alternate Bearing in Apples
Many apple varieties alternate between heavy and light production years.
- In heavy crop years, thin fruits to reduce strain and encourage consistent yields next season.
- Thinning also improves fruit size and reduces limb breakage.
PESTICIDE AND BIOLOGICAL OPTIONS FOR FIRE BLIGHT
Refer to the full table on page 5 for:
- Antibiotic options (e.g., Oxytetracycline, Kasugamycin)
- Biological products (e.g., Serenade, BlightBan, Regalia)
- Copper-based sprays for pre-bloom or dormant application
UPCOMING HOME GARDEN TIPS WEBINARS - Check the PDF attached
View full schedule in the attached PDF or join online at:
» Pest_Alert_June_6_apple_wooly_aphid,_snake_fly.pdf
Growing Degree Days Calculator
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Posted on: June 7, 2025 by Jemila Chellappa
New Feature Alert: Celebrate World Pest Awareness Day with PNW Pest Alert!
In honor of World Pest Awareness Day (June 6), we’re thrilled to announce a powerful new tool now available on www.pnw.pestalert.net
We’re excited to launch a brand-new tool on www.pestalert.net
Our Growing Degree Day (GDD) Calculator is now LIVE – designed to help you track pest development stages and make informed management decisions tailored to your location and crops. Check it out now: https://pnwpestalert.net/gdd/
Pest Alert – Codling Moth Activity Increasing in Apples
Apple Treasure Valley, Treasure Valley - Idaho
Codling Moth
Posted on: June 3, 2025 by Jemila Chellappa
Treasure Valley (Canyon County, Idaho)
June 2025
Moth captures confirmed from pheromone trap at local orchard (7 moths/trap/week)
Codling moth (Cydia pomonella) adult flight is active in the Treasure Valley region, with degree day (GDD) accumulations reaching ~680 (Base 50°F) as of June 2, 2025. Trap monitoring has confirmed moderate to high pressure, with 7 moths captured per trap this week.
- Track daily GDDs to prepare for second-generation sprays (expected at 1000–1100 GDD).
- Continue weekly trap monitoring to refine timing.
This timing coincides with peak first-generation egg hatch. Immediate action is advised to prevent worm damage to apples.
- Egg hatch typically begins at 250 GDD
- Peak egg hatch occurs between 650–750 GDD
- Now, in the critical larval emergence window
Recommended IPM Management Actions: Spray Immediately to Control Larvae
Apply a larvicide now to target newly hatched larvae. Follow label instructions and re-treatment intervals. Reapply if moth captures remain above the threshold.
Cultural & Mechanical Controls
- Thin fruit clusters to reduce entry points (leave one fruit per cluster, space ~6" apart).
- Remove and destroy infested or fallen fruit weekly.
- Bag fruit at quarter-size after spraying (brown paper bags or nylon footies with kaolin clay pre-soak).
- Keep trap records: If weekly trap catch exceeds 5–10 moths per trap, additional sprays may be needed.
Resistance Management
- Rotate modes of action (IRAC group) each generation to avoid resistance.
- Limit broad-spectrum insecticides that can flare up mites and reduce beneficial insects.
There are different management options to consider when controlling this pest.There are different management options to consider when controlling this pest.
https://pnwhandbooks.org/insect/tree-fruit/apple/apple-codling-moth
Option A: Starting at 200 DD, apply a mixture of water and horticultural oil at 1% concentration to smother egg infestation. Follow with the first application of insecticide at 350 DD. Reapply insecticides based on the protection interval stated on the label.
Option B: Starting at 220-250 DD, apply insecticides that target newly hatched larvae. Reapply insecticides based on the protection interval stated on the label.
The reference publication links to view insecticide options for commercial or residential sites.
This pest needs prevention all season long for clean fruit.
https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1879&context=extension_curall
https://extension.colostate.edu/topic-areas/insects/codling-moth-control-in-home-plantings-5-613/
To report pest activity in your area: https://pnwpestalert.net/submitalert/
Summer 2025 Heat Wave Forecast: Be Prepared for Heat Stress in the Field!
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Heat Wave Forecast
Posted on: June 2, 2025 by Jemila Chellappa
"Protect Yourself and Your Crew from Extreme Heat: Gear up and Stay Hydrated"
According to NOAA's Climate Prediction Center the 2025 summer forecast calls for 'overwhelmingly above normal' heat starting in June link: Please take a moment to familiarize yourself with the symptoms of heat related illnesses and what actions to take.
Environmental Health and Safety links:
Managing-heat-stress-with-faqs
CDC links:
HeatRisk | Tracking | NCEH | CDC
About Heat and Your Health | Heat Health | CDC
Heat-related Illnesses | Heat | CDC
Remember to drink plenty of fluids, wear appropriate clothing, sunscreen, and pace yourselves.
More Information: Beth Brune
Operations Manager
University of Idaho | Kimberly R&E Center, Kimberly, ID 83341
Email: bbrune@uidaho.edu
Eastern Idaho Pest Alert MAY 30, 2025 VOL. 6 ISS. 3
All Crops Eastern Idaho, Magic Valley
Pest Alerts from Bonneville County – Eastern Idaho
Posted on: June 1, 2025 by Jemila Chellappa
Coverage Areas: Bannock, Bingham, Bonneville, Cassia, Fremont, Jefferson, Madison, and Teton Counties
CURRENT PEST AND DISEASE ISSUES
Fire Blight Alert
- Fire blight risk levels are Exceptional to Extreme across most regions in Eastern Idaho through mid-June.
- High-risk management includes:
- Pruning out infections on dry days.
- Disinfecting tools between cuts.
- Applying antibiotics within 24 hours of a wetting event when blossoms are open.
- Consider biological control products for resistance management.
- A full table of risk periods by location is provided, with tailored spray guidance.
Codling Moth Management
- Egg hatch timing is highly variable due to weather.
- Management recommendations differ based on past fruit damage levels and whether growers use conventional or organic approaches.
- Conventional:
- Two sprays per generation recommended for high damage history.
- Fewer sprays for low-damage history, starting with oil or insecticide.
- Organic:
- Three sprays spaced 7–10 days apart for high-damage history.
- Two sprays per generation for low-damage history.
- Backyard tree treatment options include both conventional and organic products.
Leafhoppers
- Feeding causes stippling on leaf surfaces and can damage fruit.
- Monitoring and management are advised, especially for sensitive crops.
FRUIT PRODUCTION NOTES
Alternate Bearing in Apples
- Many apple varieties exhibit alternate bearing with heavy crops every other year.
- Best management is to thin fruits in heavy years to balance future yields.
PESTICIDE AND BIOLOGICAL OPTIONS FOR FIRE BLIGHT
UPCOMING HOME GARDEN TIPS WEBINARS: Check the PDF attached
Let’s work together to protect both our crops and our ecosystem. Reach out to your local Extension office for help with insect ID and integrated pest management (IPM) strategies tailored for your area https://www.uidaho.edu/extension/directory/counties
More Information, Contact:
Lena Allen
Horticulture Secretary
University of Idaho
Bonneville County Extension
208.529.1390
» Pest_Alert_May_30_2025_alternate_bearing_fruit,_leafhopper.pdf
Pest Alert: Found One Codling Moth in the Canyon County Apple Trees
Apple Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley
Apple Codling Moth
Posted on: May 28, 2025 by Jemila Chellappa
Codling moth is a key insect pest of apples and pears in Idaho. Left unmanaged, it can cause "wormy" fruit and significant crop loss.
Identification – Know the Signs & Symptoms
Stage | Identification |
Adult Moth | Grayish-brown, 1/2 inch long, with a coppery-brown band at wing tips. |
Egg | Tiny, flat, and translucent – laid singly on fruit or leaves. |
Larva | Creamy white to pink caterpillar with a dark brown head – this is the “worm.” |
Pupa | Formed in bark crevices or leaf litter in silken cocoons. |
Symptoms on Fruit:
- Small, dark entry holes ("sting") on the apple surface.
- Frass (sawdust-like excrement) near the hole.
- Tunnels inside the fruit leading to the core.
- Premature fruit drop in severe infestations.
Current Monitoring & Degree Days
- Biofix (first moth detected): Mid-May
- Current Degree Days (base 50°F): 206 DD as of May 18
- Egg hatch begins: 220–250 DD – NOW is the time for action!
Management Options
Option A: Early Prevention (Egg Smothering)
- When: At 200 DD
- Action: Apply horticultural oil (1% concentration) to suffocate eggs.
- Follow-Up: Insecticide at 350 DD.
Option B: Target Larvae
- When: 220–250 DD
- Action: Apply insecticides to kill newly hatched larvae before they burrow into fruit.
Insecticide Options: Refer https://pnwhandbooks.org/insect/tree-fruit/apple/apple-codling-moth
Always read and follow the label directions for safety and effectiveness.
Non-Chemical Options
- Fruit Bagging: Bag individual fruitlets to block larvae entry.
- Sanitation: Remove dropped fruit and prune trees to reduce overwintering sites.
- Trapping: Use pheromone traps to monitor moth flights and guide sprays.
Season-Long Strategy: Codling moth has multiple generations per season. Continue monitoring traps and tracking degree days to time follow-up sprays or control measures.
Helpful Resources
https://climate.usu.edu/includes/pestFactSheets/Codling-Moth.pdf
https://extension.colostate.edu/topic-areas/insects/codling-moth-control-in-home-plantings-5-613/
For more assistance, contact your local University of Idaho Extension office https://www.uidaho.edu/extension/directory/counties
Keep your fruit clean and healthy – act now!
Pest Alert - Eastern Idaho
All Crops Eastern Idaho
Pest Alert Newsletter - Eastern Idaho
Posted on: May 12, 2025 by Jemila Chellappa
Pest Alerts from Bonneville County – Eastern Idaho
As temperatures begin to rise across, many of us are starting to notice increased insect activity in our fields, gardens, and landscapes.
It’s natural to feel the urge to reach for an insecticide at the first sign of bugs—but we encourage you to pause and take a closer look. Not all insects are harmful, and many play important roles in pollination, natural pest control, and maintaining ecological balance.
Spraying too early or without proper identification can unintentionally harm beneficial insects and disrupt the natural balance of your growing environment. Whenever possible:
Identify the insect first—Is it a pest, a predator, or a pollinator?
Monitor populations—Are the numbers high enough to justify treatment?
Consider non-chemical options, such as biological or cultural controls.
Let’s work together to protect both our crops and our ecosystem. Reach out to your local Extension office for help with insect ID and integrated pest management (IPM) strategies tailored for your area. https://www.uidaho.edu/extension/directory/counties
Stay informed, and spray smarter! Find more information in the attached newsletter
Ag Talk Tuesdays for 2025 resume in May
All Crops All Locations
General Announcement related to Agriculture
Posted on: April 18, 2025 by Kasia Duellman
University of Idaho Extension once again presents our bi-monthly summer series, Ag Talk Tuesday.
These sessions are held live via Zoom, the first and third Tuesday of May, June, July and August every summer. Sessions start at 11:00 AM (MDT) and begin with crop updates, followed by a Featured Topic presented by an invited speaker.
Registration is required. Register only once and you will automatically be able to attend all sessions. The registration link can be found at the Ag Talk Tuesday website, https://www.uidaho.edu/ag-talk, and then by clicking on the gold bar that says "Select to register once for all sessions". The registration link is also provided below.
» https://www.uidaho.edu/ag-talk
» https://uidaho.zoom.us/meeting/register/kqdDHArFRTOKvtvx6v4nhg#/registration
Pest Alert: Grasshopper/Mormon Cricket Control Program – 2025
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Grasshopper/Mormon Cricket
Posted on: March 11, 2025 by Jemila Chellappa
Pest Alert: Grasshopper/Mormon Cricket Control Program – 2025
As we approach the growing season, the Idaho State Department of Agriculture (ISDA) would like to remind agricultural producers about the Grasshopper/Mormon Cricket Control Program available for the 2025 year. This program offers assistance in controlling these pests in areas of high infestation, potentially reducing economic losses to crops and grazing land.
Key Program Details:
Federal Lands Not Treated: Please note that federal lands are not eligible for treatment under this program.
- Eligibility for Assistance: Agricultural producers must complete the request for assistance form available on the ISDA website. To qualify for treatment, infestations must meet the following thresholds:
- 8 grasshoppers or 3 Mormon crickets per square yard.
- Land must be 5 acres or more and used for agricultural purposes (such as grazing, haying, or crop production).
- Outbreak Areas: If a significant number of requests come from a common area, ISDA may declare an Outbreak. This designation could expedite treatment by waiving individual evaluations, allowing for faster distribution of bait or reimbursement. Evaluations may still occur in some cases, but treatments will begin without the need for a threshold to be met.
How to Receive Assistance:
- Bait Distribution: Producers receiving bait will be required to sign an ISDA Bait Distribution Record and take responsibility for its proper use and storage.
- Reimbursement: To be eligible for reimbursement, producers must:
- Submit a pre-approved quote for the proposed chemical.
- Provide maps of the land to be treated with labeled land use.
- Submit a completed W9 form and an invoice showing the chemical has been paid for in full.
For additional information, visit the ISDA Website: Grasshopper/Mormon Cricket Control Program.
For any questions, contact:
Jason Ansay
Ag. Program Specialist
Grasshopper/Mormon Cricket Program Coordinator
Idaho State Dept. of Agriculture
Phone: 208-332-8556
We encourage all eligible agricultural producers to take action early to prevent economic losses caused by these pests.
PNW Pest Alert Annual Survey - 2024 Lucky Draw Winners
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Posted on: December 31, 2024 by Jemila Chellappa
Thank you to everyone who participated in our 2024 Annual Survey! Your feedback is vital to helping us improve our resources and serve you better. We also want to wish you a happy and prosperous New Year!
We’re excited to announce the winners of this year’s survey in two categories:
The Winners are
Agriculture: Crops & Small Farms
1. Paul Foote pfoote@amalsugar.com
2. Gary Harnar harnar@q.com
3. Udayakumar Sekaran udayakumar.sekaran@oregonstate.edu
Horticulture: Landscape & Gardens
The Winners are
1. Steve Cordell stevepcordell@gmail.com
2. 57woman@gmail.com
3. knpttrsn@gmail.com
Congratulations to our winners! We appreciate the time and care all participants took to share their insights, and we look forward to incorporating your suggestions to make PNWPestAlert.net even more valuable.
We also want to express our deep gratitude to our 2024 lucky draw sponsors, Snake River Sugarbeet Research and Seed Alliance, for their generous support.
Stay tuned for upcoming updates and resources, and thank you again for helping us shape the future of PNWPestAlert.net.
For more information or to share suggestions and feedback, please reach out to
JEMILA CHELLAPPA, Ph.D.
AREA EXTENSION EDUCATOR - CROPPING SYSTEMS
University of Idaho Extension, Southern District
208-459-6003 (office) | 605-690-7699 (mobile)
501 Main Street | Caldwell ID 83065 | United States
With gratitude,
The PNWPestAlert.net Team
Reminder! Take up Annual Survey 2024
All Crops All Locations
Survey Reminder
Posted on: November 22, 2024 by Jemila Chellappa
Reminder!
Take the 2024 Pest Alert Network Annual Survey and Win
Crops and Small Farms Subscribers: https://uidaho.co1.qualtrics.com/jfe/form/SV_6M7izVGWJ1pDGKy
Landscape and Gardens Subscribers:
https://uidaho.co1.qualtrics.com/jfe/form/SV_7af2iQJTcXSVZMq
We’re inviting you to participate in the 2024 Pest Alert Network Annual Survey focused on pest management. Your valuable input will help us understand pest trends and control methods and improve the Pest Alert Network!
Why Participate?
• Share your experience in pest control & management
• Help improve our pest alert services
• 3 lucky participants will be randomly selected to win a $50 gift card as a token of appreciation!
Who Should Take the Survey: PNW Pest Alert Network Subscribers
Time: Only 5-8 minutes to complete
Thank you for making pest management more effective and sustainable.
Voles - Your Mortal Enemies!
All Crops Treasure Valley, Treasure Valley - Idaho, Eastern Idaho, Magic Valley, Northern Idaho
Voles
Posted on: November 13, 2024 by Jeff Miller
Jason Thomas, University of Idaho Extension Educator, is working to better understand the impact of vole damage on Idaho farms and gather insights on how farmers like you have been affected. This information is crucial for helping us advocate for resources and support to address this issue effectively.
Please complete the 5-minute survey by clicking the link below, calling the Minidoka County Extension office at 208-436-7184 to do so over the phone or if you prefer to fill out a physical survey please email jasont@uidaho.edu with your address so he can send one out to you.
Thank you in advance for your valuable input—it makes a big difference!
https://uidaho.co1.qualtrics.
» https://uidaho.co1.qualtrics.com/jfe/form/SV_6KKoB4cTSn6p1Yy
TREASURE VALLEY PESTICIDE PRE-CERTIFICATION TRAINING
All Crops Treasure Valley, Treasure Valley - Idaho
Posted on: November 1, 2024 by Jemila Chellappa
Prepare for Your Idaho Pesticide License Exam!
Join us in person on November 8 from 8:00 am to noon at the University of Idaho Research and Extension Center for a comprehensive training program designed to help you and your team get ready for the Idaho State Department of Agriculture (ISDA) pesticide exams.
Date/Time: Friday, November 8, 8:00am - Noon
Location: UI Caldwell R & E Classroom 1904 E. Chicago St., Caldwell
Register: Call UI Extension, Canyon County 208-459-6003
What is included:
- Education on Idaho State pesticide regulations
- Training on how to effectively read and interpret pesticide labels
- Review exam preparation strategies
- Exclusive access to online practice modules and exams!
Cost: $15.00 per participant https://bit.ly/24PesTraining
This training provides an interactive way to engage with study materials, gain critical knowledge, and benefit from examples and discussions that reinforce key concepts. There will be plenty of opportunities for review and Q&A.
Special Offer:
Get free access to our online course, which includes additional resources and practice exams to help you prepare at your own pace!
Questions? Contact
canyon@uidaho.edu / 208-459-6003
The University of Idaho has a policy of nondiscrimination on the basis of race, color, religion, national origin, sex, age, sexual orientation, gender identity/expression, disability, genetic information, or status as any protected veteran or military status. Persons with disabilities who require alternative means for communication or program information or reasonable accommodations need to contact University of Idaho Extension Canyon County one (1) week prior at 501 Main St., Caldwell, 208-459-6003 or canyon@uidaho.edu.
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