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2022 Idaho Horticulture Expo
General Landscape and Garden Treasure Valley
Posted on: December 15, 2021 by Nic Usabel
The Idaho Nursery and Landscape Association will host the Idaho Horticulture Expo January 19-20 at the Boise Center.
Here is a peak at just some speakers:
- Stepahnie Adams, Morton Arboretum
- Amanda Thompsen, author of Kiss My Aster
- Tim Prather, University of Idaho
- Dr. Brent Bean, BYU Idaho
- See the full schedule
Credits available:
- 11 continuing education credits for Arborists.
- 11 recertification credits for Pesticide Applicators
Register today at inlagrow.org.
2021 Live Evergreen Trees as Indoor Holiday Decoration
General Landscape and Garden Treasure Valley
Posted on: December 10, 2021 by Nic Usabel
If using a live, with roots attached, evergreen tree for your indoor holiday decoration here are some items to consider.
First, consider where in the landscape you will plant your tree. Select an open area which lacks overhanging tree branches or wires. If you don't have such a site, consider a dwarf conifer or evergreen shrub. Choose a tree that will thrive in your soil condition and climatic condition. Proper planning now will save you time and money later.
When you visit a nursery or garden center, you will find a variety of evergreens to choose from. Evergreens are commonly available as containerized trees grown in a pot or balled and burlapped trees.
Before the ground freezes, dig a hole 2-3 times wider than the root ball, but only as deep as the root ball itself. The soil which is removed from the hole will need to be stored where it will not freeze. This soil will be used in planting the tree after the holiday.
Trees have a better chance of survival if they are not displayed in the house for more than a 7 to 10 days. If purchasing the tree early keep the tree in a cool location before moving it indoors and water as necessary. Extended exposure to the indoor temperatures can counteract the winter dormancy in conifers. A short display period and prompt planting is the best way to insure the survival of the tree in the landscape.
When you are ready to plant position and level the tree. If the root ball is wrapped remove any cover or wires. Inspect the tree root ball for circling roots and straighten, cut, or remove them. Identify the trunk flare, where the trunk widens near the root zone, and ensure that the root flare is viable at ground level once planted. With the reserved soil fill the hole and gently but firmly apply pressure. Water thoroughly and apply a woodchip mulch. For more detailed planting instructions of trees visit treesaregood.org.
With appropriate care, planting, and management you will be able to enjoy your tree in the landscape for years to come.
Resources:
Selection and Care of Living Christmas Trees, NC State Extension
2021 Annual Survey Winners
All Crops All Locations
Posted on: December 10, 2021 by Jerry Neufeld
Thanks to everyone that completed a 2021 annual survey for the PNWPestAlert.net website. The winners of the Texas Roadhouse gift cards are Ron Y, Mike M, and Kevin K.
Register for the in-person 2022 Idaho Potato Conference
Potato All Locations
Posted on: November 29, 2021 by Nora Olsen and Mike Thornton
Registration
is now OPEN!
The 54th
annual Idaho Potato Conference and Eastern Idaho Ag Expo presented by the
University of Idaho and Spectra Productions will be live and in-person in 2022.
Set your calendars to attend the 2022 Idaho Potato Conference January 19 and 20
in Pocatello, ID. Attend your choice of educational presentations and workshops
from three concurrent sessions over the one and half-day conference and take
some time to visit the adjoining trade show that features over 70 booths and
displays highlighting agricultural products and services.
Seminars and workshops in Spanish will
be held both days and include a wide variety of topics from beneficial insect
identification to farm safety discussions.
Earn CCA (CEU) and pesticide
recertification credits at seminars and workshops throughout the in-person
conference.
Select presentations will be recorded
and available at the conference website after the conference. Registration for the
conference will be required to gain access to the recorded presentations.
Cost for pre-registration is $40 per person ($50 at the
door). We strongly encourage everyone to pre-register and avoid the lines at
the conference. Additional details regarding the agenda, topics, and
registration can be found at https://www.uidaho.edu/cals/potatoes/news/idaho-potato-conference.
2021 Protecting Trees from Sunscald
General Landscape and Garden Treasure Valley
Posted on: November 19, 2021 by Nic Usabel
Sunscald or southwest winter injury happens during the winter. Intense direct and reflected sunlight will activate tissues under the bark. At night, temperatures fall, and cells freeze, causing cell death. This damage is often not noticed for a few years until the bark has split open exposing the damage below. The damaged sites are prone to attack by wood-boring insects and fungal pathogens.
Recently planted trees, young trees, and trees with thin bark are more susceptible to sunscald. Trees species which are susceptible include maple, linden, mountain-ash, honeylocust, birch, walnut, crabapple, flowering cherry, fruit trees, aspen, ash, tuliptree, and willow.
To prevent sunscald damage from occurring keep the lower trunk insulated or shaded in winter. Susceptible trees can be protected by wrapping the trunk with paper tree wrap, overlapping about 33% with each turn. Wrap trunks upward from the base of the tree to a point just above the lowest branch. Wrap should be removed in early spring after the risk of a hard frost has passed. If not removed the wraps can harbor insects and disease. Trunks can also be protected by placing a light-colored board to the south and west of the tree trunk. In large applications white latex paint can be diluted 1:1 with water and applied on the southwest side of the lower trunk. Landscape design and planting susceptible trees to the north and east of buildings or evergreens can help to shade the lower trunk.
References:
2021 Fall Control for Coryneum Blight & Peach Leaf Curl
General Landscape and Garden Treasure Valley
Coryneum blight (Thyrostroma carpophilum) & Peach leaf curl (Taphrina deformans)
Posted on: November 1, 2021 by Nic Usabel
Coryneum blight or commonly known as shothole disease which is caused by fungus Thyrostroma carpophilum. Trees which have been affected develop small, round, tan-to-purpleish spots which then dry and fall out of the leaf producing a shothole effect. Most cultivars of peach, nectarine, apricot, and almond are very susceptible while cherry and plum are less susceptible. In addition, ornamental plant species can show damage. Beyond the leaf, symptoms can also be seen on the current season and 1-year old fruiting wood. Infections consist of round, reddish spots which are slightly sunken.
Chemical control will occur after 50% leaf drop in late autumn by spraying with a copper-based fungicide, chlorothalonil, or Bordeaux mixture. Follow the label instructions for rate and application procedure. Prune out affected twigs when practical. Culturally control shothole disease by not allowing irrigation sprinklers to wet the tree foliage, select cultivars which are disease resistant when available, and remove and dispose of affected foliage and twigs.
Peach leaf curl caused by fungus Taphrina deformans and is specific to peaches and nectarines. Trees that are infected will have leaves that are distorted or curl, appear blistered, and develop a yellow or red color.
Control can be achieved by a single fungicide application in the fall after 90% of the leaves have fallen. Chemicals used for control are copper products or chlorothalonil. Follow the label instructions for rate and application procedure. Homeowners should also remove and dispose of infected leaves that have fallen to the ground, to remove as much inoculum as possible. Resistant varieties can be selected for additional cultural control.
References:
- Peach Leaf Curl, PNW Handbook
- Peach Leaf Curl Disease, Utah State University
- Shothole-Peach, PNW Handbook
- Shothole, UC IPM
2021 Idaho Association of Plant Protection registration now available online
All Crops All Locations
Posted on: October 25, 2021 by Jeff Miller
The agenda has been set and registration is now available for the 2021 Annual Idaho Association of Plant Protection (IAPP) annual meeting.
For those who want to attend by Zoom, you must register for the Zoom meeting (a separate registration for each day) and then you must also register at the following link:
https://millerresearch.com/event/2021-idaho-association-of-plant-protection/
After registering at the link, you will receive an email allowing you to pay online via PayPal. Registration in person will be available at 12:30 pm on Wednesday and can be paid by check or cash.
Three ISDA pesticide recertification credits and 3.5 CCA Pest Management credits are available each day. The $15 registration fee covers both days and the cost is the same if you attend one or both days.
» https://millerresearch.com/event/2021-idaho-association-of-plant-protection/
2021 Pesticide Fall Recertification Webinar Series
General Landscape and Garden All Locations
Posted on: October 22, 2021 by Nic Usabel
The UI Extension Pesticide Safety Education Program (PSEP) will be conducting 6-webinars on Tuesdays from Nov. 2 - Dec. 14. Completed webinars receive one-pesticide credit*. These webinars are synchronous and held from 10 AM - 11:15 AM (MST). The cost is $10 per applicator/webinar. Enroll now on our UI Marketplace HERE. Check out the details in the attached UIPSEP Fall Recertification Webinars poster. For more information, contact Kimberly Tate at ktate@uidaho.edu.
*For pesticide credit: Pesticide applicators must answer questions throughout the webinar session. This requires individual computer and internet access for each user. Answers will be collected to confirm attendance was maintained for the entire webinar.
Pesticide Fall Recertification Webinar Series
All Crops All Locations
Posted on: October 22, 2021 by Kimberly Tate
The UI Extension Pesticide Safety Education Program (PSEP) will be conducting 6-webinars on Tuesdays from Nov. 2 - Dec. 14. Completed webinars receive one-pesticide credit*. These webinars are synchronous and held from 10 AM - 11:15 AM (MST). The cost is $10 per applicator/webinar. Enroll now on our UI Marketplace HERE. Check out the details in the attached UIPSEP Fall Recertification Webinars poster. For more information, contact Kimberly Tate at ktate@uidaho.edu.
*For pesticide credit: Pesticide applicators must answer questions throughout the webinar session. This requires individual computer and internet access for each user. Answers will be collected to confirm attendance was maintained for the entire webinar.
2021 Idaho Master Gardener Programs in the Treasure Valley
General Landscape and Garden Treasure Valley
Posted on: October 13, 2021 by Nic Usabel
Interested in becoming an Idaho Master Gardener. See below for program information offered by University of Idaho Extension.
UI Extension, Ada County (Boise, ID): Be added to the interest list by calling 208-287-5900 or email ada@uidaho.edu indicating your interest in the Idaho Master Gardener Program. Additional information can be found at uidaho.edu/ada.
UI Extension, Canyon County (Caldwell, ID): This location serves Canyon and Owyhee counties. Class to meet weekly Wednesday morning from 9am - noon January 12 – May 4. Be added to the interest list by emailing canyon@uidaho.edu or calling 208-459-6003. Registration packet will be released to interest list mid-October. Additional information can be found at uidaho.edu/canyon.
UI Extension, Elmore County (Mountain Home, ID): Be added to the interest list for the 2023 class by calling 208-587-2136 ext. 1250 or email elmore@uidaho.edu. Additional information can be found at uidaho.edu/elmore.
UI Extension, Washington County (Weiser, ID): This location serves the Payette River Valley (Gem, Payette, Washington, Adams counties). Additional information can be found at uidaho.edu/washington or by calling 208-414-0415.
Don’t see your county listed? Use the Idaho Master Gardener webpage to find all program options across Idaho.
Bird cherry-oat aphids on the move; time to inspect fields
Small Grains All Locations
Bird Cherry Oat Aphids
Posted on: October 8, 2021 by Jerry Neufeld
The winged from of bird cherry-oat aphids has been observed in winter wheat in Twin Falls County, Idaho; the wheat was planted in late-September.
The observed aphid numbers were relatively low (averaging one per young seedling), but it indicates that the aphids are on the move, and that the numbers could increase, if the mild weather continues.
Although bird cherry-oat aphids rarely cause significant damage to small grains by direct feeding, they are efficient vectors of Barley yellow dwarf virus (BYDV).
See below publication for more information on BYDV symptoms and the aphid vectors.
» https://www.extension.uidaho.edu/publishing/pdf/CIS/CIS1210.pdf
Artificial Intelligence for Insect Identification
All Crops All Locations
Posted on: September 30, 2021 by Jerry Neufeld
As a component of a USDA-funded project, Harnessing
artificial intelligence for implementing integrated pest management in
small-grain production systems, the University of Idaho is developing a system
to automatically identify insects in wheat and other crops based on submitted
cellphone images.
To develop this system, we need your help with collecting a
large number of photographs of pests and beneficial insects observed in cereal
cropping systems
(cereals and rotation crops) throughout the region. To date,
we have received more than 1300 insect photos- Thank you for your continuing
support!
We will need thousands of photos to train our computer
algorithm to enable the system to generate the most accurate identifications of
unknown samples.
To help us develop this tool, please upload insect
photographs through this link: https://cerealpestaid.net/
2021 Idaho Association of Plant Protection Agenda - Nov. 3-4, Burley Best Western
All Crops All Locations
Posted on: September 28, 2021 by Jeff Miller
The agenda has now been posted for the 2021 Idaho Association of Plant Protection annual meeting on Nov. 3-4 in Burley, ID. See the attached files for more information. ISDA pesticide recertification credit and CCA Pest Management credits have been requested.
» https://millerresearch.com/event/2021-idaho-association-of-plant-protection/
Psyllid Update September 17, 2021
Potato All Locations
potato psyllid
Posted on: September 17, 2021 by Erik Wenninger
This is the final report of the 2021 Idaho psyllid monitoring program.
From our samples from last week, we found our first Lso-positive psyllid of the season, on a site in Owyhee County. All other psyllids tested from last week were negative for Lso, the bacterium associated with zebra chip disease (ZC). The total percent positive among all sites for the season was 0.08%, which is the lowest incidence of Lso we have observed during the past decade.
During mid- to late July, it appeared that overall psyllid captures would be relatively high this year; however, captures were lower during August, which is the time of year that our psyllid captures are often highest. It is possible that the high temperatures during June to July contributed to higher captures and the more moderate temperatures in August contributed to more modest captures. In the end, overall captures across the season were relatively modest compared to other seasons, and similar to overall captures last year.
Greater abundance of psyllids earlier during the season should generally contribute to greater risk of ZC disease development over the season. However, risk of ZC is a function of both psyllid abundance over the season and Lso incidence. The extremely low incidence of Lso observed in psyllids coupled with relatively modest captures overall, suggests relatively low risk of ZC in the crop this season.
To dive more deeply into the capture data over the season, you can view contour maps that illustrate relative psyllid abundance across the landscape each week here: https://potatoes.decisionaid.systems/
More details can also be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
2021 Fall Lawn Fertilization & Care
General Landscape and Garden Treasure Valley
Posted on: September 15, 2021 by Nic Usabel
University of Idaho turf specialists recommended splitting the application of lawn fertilization into three (3) applications; early May, early September, and late October/November. Review the first reference below to identify fertilization application amounts using a soil test result or the second reference for general recommendations for southern Idaho. Apply according to label directions.
If your lawn is suffering from soil compaction or development of a thick thatch layer fall is the optimal time to core aerate. For more information on core aeration review Core Aeration of Lawns.
Fall is a great time to control perennial weeds in the landscape if opting to use herbicides. Perennials will begin storing carbohydrates in the roots promoting herbicides to be drawn deeper into the root system and allowing for better control.
If there are additional questions on lawn care or weed management reach out to a local University of Idaho Extension office.
Canyon County Master Gardeners are holding an online Fall Perennial Plant Sale. View the inventory selection at https://bit.ly/ccmgstore.
References:
2021 Reduce Watering Frequency During Fall
General Landscape and Garden Treasure Valley
Posted on: September 14, 2021 by Nic Usabel
The days are shortening, and evening temperatures are cooling. Now is the time to adjust the frequency between irrigation days for the landscape and garden.
Lawn irrigation systems can be set to increase the number of days between irrigation based on soil texture. Adjusting the frequency of watering versus the run time allows for replenishment of the water holding capacity and usable water in the soil profile. See publication links below for greater explanation. This deep and infrequent method encourages a deeper root growth of plants.
A reminder to deep water trees and shrubs prior to shutoff of irrigation water. See our previous alert, 2021 Deep Water Trees & Shrubs.
Canyon County Master Gardeners are holding an online Fall Perennial Plant Sale. View the store today at https://bit.ly/ccmgstore.
Reference:
- Watering Home Lawns and Landscape, University of Idaho
- Watering Home Lawns: How Much and How Often, University of Idaho
- 2021 Deep Water Trees & Shrubs, PNW Pest Alert Network
Psyllid Update September 9, 2021
Potato All Locations
potato psyllid
Posted on: September 9, 2021 by Erik Wenninger
This week we had traps deployed in 48 fields, though we are still waiting for traps from one Treasure Valley field. We found a total of 66 psyllids across 15 (32%) of the 47 fields for which we have data. With many fields undergoing vine kill, this is our last week of retrieving sticky traps. We will, however, report on Lso results and a season recap next week.
Overall psyllid captures this week were similar to the last two weeks, with considerably lower captures than for most recent weeks. We recorded moderate captures in parts of the Treasure Valley and Owyhee to Elmore counties as well as near Twin Falls. We recorded low captures elsewhere.
Psyllids were captured in the following counties: Canyon (3 fields), Owyhee (3 fields), Elmore (1 field), Twin Falls (5 fields), Minidoka (2 fields), and Cassia (1 field).
All psyllids tested from last week were negative for Lso, the bacterium associated with zebra chip disease (ZC). Testing of late-arriving psyllids from one field in Canyon County is pending. Thus far, all of our psyllid samples have been negative.
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs.
To view contour maps that illustrate relative psyllid abundance across the landscape, set up a free account here: https://potatoes.decisionaid.systems/
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Psyllid Update September 2, 2021
Potato All Locations
potato psyllid
Posted on: September 3, 2021 by Erik Wenninger
This week we had traps deployed in 58 fields, though we are still waiting for traps from one Treasure Valley field. We found a total of 72 psyllids across 13 (23%) of the 57 fields for which we have data. Many fields have undergone vine kill and will no longer be sampled.
Overall psyllid captures this week and last week have been considerably lower than for recent weeks. Contour maps (see links below) graphically reflect relatively high abundance of psyllids collected in Elmore County. We recorded moderate to low captures in other parts of the state and zero captures in eastern Idaho.
Psyllids were captured in the following counties: Canyon (3 fields), Owyhee (3 fields), Elmore (2 fields), Gooding (1 field), and Twin Falls (4 fields).
We expect to get Lso results tomorrow, and we will post them on our sites (below) as soon as they are available. Thus far, all of our previous psyllid samples have been negative for Lso, the bacterium associated with zebra chip disease (ZC).
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs as late as two weeks before vine kill. Please consider this in your late-season IPM programs.
To view contour maps in more detail, set up a free account here: https://potatoes.decisionaid.systems/
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
2021 Spider Mites
General Landscape and Garden Treasure Valley
Spider Mites (Tetranychidea)
Posted on: September 1, 2021 by Nic Usabel
Idaho Master Gardeners observed a spider mite infestation on zucchini during a recent integrated pest management walk. Spider mites are small (1/60 inch) and cause leaves to appear dirty due to their abundant webbing and adhering of dust. Symptoms include stippling on upper surface of leaves, bronzing and scorching of leaves, and death of foliage when damage is severe.
If you suspect a mite infestation, shake infested leaves over a white sheet of paper. If the small dots that fall to the paper move around, you likely have spider mites. For additional identification or confirmation, reach out to your local Extension office. Most spider mite activity peaks during dry conditions.
Management:
- Spider mites have a number or predatory mites and insects that can provide a high level of control. Avoid insecticides that are nonselective to help preserve predatory insects and mites. Examples include carbaryl, malathion, pyrethroid.
- Periodic hosing of plants with a forceful jet of water can physically remove spider mites and reduce dry dusty conditions favored by spider mites.
- If using a chemical control, select miticides that are specifically developed for spider mite control.
References:
- Pumpkin & Squash Spider Mite, PNW Handbook
- Spider Mites, Colorado State University
- Vegetable Crop Pest: Spider Mite, PNW Handbook
2021 Deep Water Trees & Shrubs
General Landscape and Garden Treasure Valley
Posted on: August 31, 2021 by Nic Usabel
Many irrigation districts across the Treasure Valley have indicated that water delivery will end early this season. If your irrigation season will end soon consider deep watering your trees and shrubs before irrigation delivery has stopped.
For established trees irrigate trees starting halfway between the trunk and the dripline and extending well beyond the dripline. See photo linked below for a visual. For large trees this could encompass the entire lawn. For newly planted trees irrigation is best concentrated near the trunk and slightly beyond the root ball to encourage roots to move out into the surrounding soil. Shrubs can be watered in a similar fashion to ensure the roots of the shrub have received water. Evergreen trees and shrubs will continue to lose moisture from their needles or leaves all winter long.
Consider using mulches on the soil surface to conserve moisture. In addition, it will help with weed control and uniform soil temperature. Keep mulch 2 inches away from tree and shrub stems to discourage root and crown disease.
References:
- Tree for southwestern Idaho landscapes: Selection & Irrigation, University of Idaho
- Watering Home Lawn and Landscapes, University of Idaho
2022 Idaho Potato Conference Call for Topics
Potato All Locations
Posted on: August 31, 2021 by Nora Olsen and Mike Thornton
This the first call for
topics for the 2022 Idaho Potato Conference that will take place in Pocatello,
ID on January 19th and 20th. Please provide your ideas for potential
workshops and presentations for this year's conference to Nora Olsen (norao@uidaho.edu) or Mike Thornton (miket@uidaho.edu) by September 30th so that we can put together
a preliminary list for the program planning meeting. Please also suggest
a speaker if you have someone in mind that would do a good job of covering the
topic.
Psyllid Update August 26, 2021
All Crops All Locations
potato psyllid
Posted on: August 26, 2021 by Erik Wenninger
This week we had traps deployed in all 73 fields, though we are still waiting for traps from two fields in eastern Idaho. We found a total of 64 psyllids across 22 (31%) fields.
Overall psyllid captures were considerably lower than for recent weeks. Contour maps (see links below) graphically reflect relatively high abundance of psyllids collected in some fields in the western Treasure Valley and in Elmore County, but this abundance is markedly lower than in previous weeks. Moderate to low captures were recorded in the Magic Valley and very few captures were recorded east of the Magic Valley.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (9 fields), Payette (1 field), Owyhee (2 fields), Elmore (2 fields), Twin Falls (6 fields), Cassia (1 field), and Bingham (1 field).
Once again, all psyllids tested from last week were negative for Lso, though testing of a single psyllid from last week is still pending. We have yet to find any Lso-positive psyllids this season.
With harvest season upon us, it is worth remembering that our studies in Russet Burbank showed that ZC can develop during storage if infection occurs about two weeks before vine kill. Please consider this in your late-season IPM programs
To view contour maps in more detail, set up a free account here: https://potatoes.decisionaid.systems/
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures
-Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
» https://potatoes.decisionaid.systems/
2021 Curly Top Virus in Tomatoes
General Landscape and Garden Treasure Valley
Beet Curly Top Virus
Posted on: August 26, 2021 by Nic Usabel
The Canyon County Master Gardener Integrated Pest Management Team recently detected a tomato plant with symptoms of curly top virus. The virus is carried by the beet leafhopper, Circulifer tenellus. The leafhopper takes up the virus when feeding and keeps it in its body the rest of its life. The most frequently cited hosts include Kochia, Lambsquarter, Halogeton, Russian thistle, Greasewood, and Atripex.
The symptoms on tomatoes include the rolling up and twisting sharply of the leaflets to expose the undersurface. Foliage is stiff and leathery, and the entire plant is a peculiar dull yellow. Leaflet veins are purple, and the plant is often stunted. Many roots and rootlets die, as do severely affected plants. Young plants infected with the disease are usually killed.
The sporadic nature of Beet Curly Top Virus makes it very difficult to implement practical management strategies. One of the most promising strategies is to use resistance cultivars of tomatoes. Observations have shown that plants grown in shade do not contract the virus, so shading could be a possible management strategy. Excluding the beet leaf hopper with row cover buried in the ground and placed over the tomatoes until plants can no longer be contained inside can reduce early infection. Pull and dispose of infected plant material.
References:
2021 Idaho Association of Plant Protection - Nov. 3-4, Burley Best Western
All Crops All Locations
Posted on: August 25, 2021 by Jeff Miller
The 2021 Idaho Association of Plant Protection Annual Meeting will be held Wednesday, November 3 at 1:00 pm to Thursday, November 4 at 1:00 pm at the Best Western Inn & Convention Center, Burley, Idaho. Registration will begin at 12:30 PM on Wednesday. The conference will cover all aspects of plant protection including entomology, nematology, weed science, and plant pathology.
Please consider contributing to the meeting research results, observations, unusual pest and disease occurrences, and topics that could be discussed as a group. Each presentation will be allotted a 20-minute time slot. A final program will be advertised in October. Registration begins at 12:30 p.m. on Wednesday and the program will begin at 1:00 p.m. Registration costs $15.00 and can only be made by check or cash. Certified Crop Advisor (CCA) and Pesticide Recertification credits (ISDA) will be available.
Hotel reservations must be made on your own. Special hotel rates have been negotiated for the participants: $89.00 per night for the Burley Inn (www.burleyinn.com or 208-678-3501) and $65.00 for the Budget Motel nearby (www.burleybudgetmotel.com or 208-678-2200). Please refer to the attached hotel flyer.
Please complete the attached form if you want to participate and reply by email to Alexander Karasev (akarasev@uidaho.edu). If you are not attending this meeting but would like to be notified of future meetings, please send us your updated contact information. Responses can be sent to:
Alexander Karasev: akarasev@uidaho.edu
University of Idaho, Dept. of EPPN
Moscow, ID 83844-2329
(208) 885-2350
Please respond by September 17th, 2021. Also, please share with any who may have an interest.
» https://millerresearch.com/event/2021-idaho-association-of-plant-protection/
Psyllid Update August 19, 2021
Potato All Locations
potato psyllid
Posted on: August 19, 2021 by Erik Wenninger
This week we had traps deployed in all 73 fields, though we are still waiting for traps from one field. We found a total of 115 psyllids across 25 (35%) fields.
Overall psyllid captures were slightly lower than last week. Contour maps (see links below) still graphically reflect relatively high abundance of psyllids collected in some fields in the western Treasure Valley. The Elmore County “hot spot” is slightly diminished. Moderate to low captures were recorded in the Magic Valley. We captured two psyllids in Cassia County, but recorded no psyllid captures further east.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (7 fields), Payette (1 field), Gem (1 field), Owyhee (2 fields), Elmore (2 fields), Gooding (1 field), Jerome (2 fields), Twin Falls (7 fields), Cassia (2 fields), and Power (1 field).
Once again, all psyllids tested from last week were negative for Lso, though tests of psyllids from six fields in the western Treasure Valley that arrived late to us last week are still pending. We have yet to find any Lso-positive psyllids this season.
Nevertheless, we urge growers to watch psyllid numbers closely during the coming weeks and to have their IPM programs in place.
More information can be found here: http://www.uidaho.edu/cals/potatoes/news
--Click on the links under “Updated weekly reports” for details on trap captures.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
--To view contour maps in more detail, set up a free account here: https://potatoes.decisionaid.systems/
