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U of Idaho Ag Talk Tuesday
All Crops Eastern Idaho
Posted on: July 9, 2018 by Jerry Neufeld
University of Idaho Extension Specialist, Dr. Kasia Duellman is inviting you to join her and other UofI Extension Specialists at the next UofI Ag Talk Tuesday which is July
10, 11:30 am to 1:00 pm at Morey's Steakhouse in Burley. This is an opportunity for informal discussion on current crop production problems.
The next UofI Ag Talk Tuesday will be held on July 17 at Papa Tom's in Idaho Falls, 11:30 am to 1:00 pm.
Malheur Experiment Station Field Day July 11
All Crops All Locations
Posted on: July 9, 2018 by Janet Jones
You are invited to the Malheur Experiment Station Summer Farm Festival and Annual Field Day!
Place: Malheur Experiment Station, 595 Onion Ave, Ontario, OR
Date: Wednesday, July 11, 2018
Registration starts at 8:00am with coffee and donuts
Click on the PDF below for the tour descriptions and schedule.
Also featured:
- Agricultural trade show booths!
- Program for youth starting at 9:30!
- Different events and contests with prizes!
A complimentary lunch will be served at noon.
For more information call Jan Jones at (541) 889-2174 or email janet.jones@oregonstate.edu.
Cercospora Leaf Spot and Black Bean Aphid- 2018
Sugarbeets Treasure Valley
cercospora leaf spot and black bean aphid
Posted on: July 6, 2018 by Jerry Neufeld
Amalgamated Sugar Company field consultants are advising sugarbeet growers to scout their fields for Cercospora Leaf Spot and Black Bean Aphids. Conditions are ideal for these pests right now. Both of these pests are currently being found in many sugarbeet fields in the Middleton, Notus and Parma areas. The fungicides and insecticides used on these pests can commonly be tank mixed; however; AMSCO would like you to contact your field representative for specific recommendations. The links below will take you to the Pacific Northwest Handbooks where you can see the chemicals used on these pests, and also see images of them.
» https://pnwhandbooks.org/plantdisease/host-disease/sugar-beet-beta-vulgaris-cercospora-leaf-spot
» https://pnwhandbooks.org/insect/agronomic/sugar-beet/sugar-beet-aphid
2018 Miller Research Potato Pest Management Field Day
All Crops All Locations
Posted on: July 6, 2018 by Jeff Miller
Miller Research will be holding its annual pest management field day on Tuesday, August 14 at the Miller Research facility located near Acequia, ID (426 E 200 N). A short presentation will be given in the office followed by a tour of the research plots. Trials to be highlighted include research on pink rot and Pythium leak, Rhizoctonia canker and Fusarium dry rot, fumigation methods for Verticillium control, foliar disease management, virus symptoms in the field and storage, and potato bruise management.
The presentations will focus on fungicide management of diseases and will highlight research which has been funded by the Pacific Northwest Potato Research Consortium. Three (3) ISDA pesticide recertification credits and three CCA (Pest Management) credits have been requested.
The tour will run from 9:00 to 12:00. Lunch will then be provided.
There is no cost to attend, but please respond to Cheryn Clayton by August 6 at (208) 531-5124 or cheryn@millerresearch.com if you are planning on attending.
» http://www.millerresearch.com/alerts/research-news/item/66-potato-disease-tour
First Lso-positive potato psyllid
Potato All Locations
Potato Psyllid
Posted on: July 6, 2018 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (4 fields), Owyhee (2 fields), Gooding (1 field), and Twin Falls (1 field).
This week, we collected 13 psyllids from sticky cards (7 light sites and 1 intense site).
We had traps deployed in 93 of the estimated 97 fields (95%) that will be monitored this year and found psyllids in 8 of the monitored fields (8.6%). However, we are still waiting to receive cards from 8 sites.
One psyllid collected last week in Canyon County tested positive for Lso (liberibacter), the bacterium that causes zebra chip.
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 in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Herbicide Damage to non target plants.
Landscape and Garden All Locations
Herbicide damage
Posted on: July 3, 2018 by Rich Guggenheim
We are seeing considerable damage to plants consistent with broad leaf herbicides being misapplied. Always read and follow all label instructions. It is against the law to use pesticides in a manner inconsistent with label instructions.
Click the links below to learn how to diagnose and prevent herbicide damage.
» https://www.extension.purdue.edu/extmedia/id/id_184_w.pdf
» http://herbicidesymptoms.ipm.ucanr.edu/HerbicideDamage/
» https://hortnews.extension.iastate.edu/2018/06/preventing-herbicide-injury-landscape
Curly Top Virus in Solanacea Plants
Landscape and Garden All Locations
BCTV
Posted on: July 2, 2018 by Rich Guggenheim
BCTV affects Beets, tomatoes, peppers, beans, potatoes, spinach, cucurbits, many ornamentals, and weeds such as Russian thistle (tumbleweed) and mustard. It is spread by the Beet leafhopper (Circulifer tenellus). There are no chemicals available for controlling the virus. Management foci include:
Plant virus-free transplants
Control weeds and insects
Remove infected plants
Cage young plants in home gardens. Good sanitation practices, such as weed and insect control, are also essential in limiting the occurrence of the disease. Home gardeners may also consider planting susceptible hosts, such as tomatoes and peppers, in a slightly shaded part of the garden, as leafhoppers prefer to feed in sunny locations
» http://utahpests.usu.edu/uppdl/files-ou/factsheet/curly-top-tomato08.pdf
» http://ipm.ucanr.edu/PMG/r783102011.html
Squash Bug confirmed in 2018 squash.
Landscape and Garden All Locations
Anasa tristis
Posted on: June 30, 2018 by Rich Guggenheim
Squash bugs have been confirmed in the Treasure Valley.
It attacks all cucurbits and vine crops but is most damaging to squashes and pumpkins. The insect has a disagreeable odor when crushed and is one of many insects known by the nickname "stink bug."
They may be difficult to see because their color matches the soil and because they are usually hiding under the vines, leaves or clods of dirt. The adults feed on sap from the plant leaves as they lay clusters of a dozen of more, large, brick-red to yellow-brown eggs on the lower sides of the leaves.
Handpick and discard egg clusters and nymphs as they appear. Use garden insecticides such as Sevin, permethrin or insecticidal soap according to label directions. Sprays are generally more effective than dusts, but must be reapplied frequently. Avoid spraying plants in bloom. If spraying during bloom is necessary, spray at night after honey bees have quit foraging for the day.
» https://extension.usu.edu/juab/ou-files/ENT-120-08.pdf
» http://extension.colostate.edu/topic-areas/insects/squash-bug-management-in-home-gardens-5-609/
Psyllid abundance remains relatively low
Potato All Locations
Potato Psyllid
Posted on: June 29, 2018 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (6 fields), Owyhee (1 field), and Twin Falls (2 fields).
This week, we collected 16 psyllids from sticky cards (8 light sites and 1 intense site).
We had traps deployed in 85 of the estimated 97 fields (87%) that will be monitored this year and found psyllids in 9 of the monitored fields (10.5%). However, we are still waiting to receive cards from 4 sites.
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
Thus far, psyllid abundance has been relatively low this year; however, potato psyllid abundance typically increases during July through August.
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 in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Peach Tree Borer 2018
Landscape and Garden All Locations
Peach Tree Borer
Posted on: June 29, 2018 by Dian Roberson
We have been finding Peach Tree Borers in our traps! They will attack peach, cherry, plum, and other stone fruits. It is the larva that does the most damage, feeding on the tree roots. Check out the information below!
» https://pnwhandbooks.org/insect/tree-fruit/peach-nectarine/peach-nectarine-peachtree-borer
» http://extension.colostate.edu/topic-areas/insects/peach-tree-borer-5-566/
University of Idaho onion workshop and field tour
Onion Treasure Valley
Posted on: June 27, 2018 by Jerry Neufeld
The University of Idaho is hosting an onion workshop and field tour on July 13 at the Parma R and E Center. You are encouraged to RSVP since seating in limited. Click on the pdf below for more information.
Loopers in Sugarbeets - 2018
Sugarbeets Treasure Valley
loopers
Posted on: June 25, 2018 by Jerry Neufeld
Amalgamated Sugar Company is reporting that loopers have been found in sugarbeet fields in the Caldwell area. These pests will defoliate leaves, leaving only the leaf veins and petioles if left untreated. The link below will take you to the PNW Insect Management Handbook for control measures. If you have any questions, contact your Crop Consultant from Amalgamated Sugar Company for more information.
» https://pnwhandbooks.org/insect/agronomic/sugar-beet/sugar-beet-looper
Cercospora Leaf Spot - 2018
Sugarbeets All Locations
cercospora leaf spot
Posted on: June 25, 2018 by Jerry Neufeld
According to Dr. Oliver Neher, from AMSCO, it is time to scout sugarbeet fields for Cercospora Leaf Spot. Temperatures are increasing, rows are closing and irrigation is intense right now. In the next couple of days we could see the average night time temperatures reaching 60 F and with ongoing irrigation we are creating favorable conditions for CLS. Favorable conditions for CLS are when the average night time temperature is above 60 degrees Fahrenheit with 90 percent relative humidity or above for 5 hours or more. Start treating when there are 5 spots average on 50-100 leaves.
Initially focus your scouting on areas with persistent leaf wetness (overlapping handlines and pivots, or areas with increased soil moisture) and known CLS problem areas or close to previous CLS fields. With the increase of fungicide resistance it is very important to use proper chemistry rotation and the addition of a copper product. However, remember copper and glyphosate don’t mix. It is best to consult your Field Consultant from AMSCO before making any treatments.
powdery mildew in sugarbeets - 2018
Sugarbeets All Locations
powdery mildew
Posted on: June 24, 2018 by Jerry Neufeld
Powdery mildew has been found by a Simplot Crop Consultant and confirmed by The Amalgamated Sugar Company Staff in fields near Adrian, Oregon and Parma, Idaho. There are several fungicides available for use to treat powdery mildew. Depending on the disease pressure and chemistry used, applications with different chemistries should be repeated every 14-21 days. Contact your crop consultant from the Amalgamated Sugar Company if you have any questions.
Click on the link below for the powdery mildew pages in the PNW Plant Disease Management Handbooks.
» https://pnwhandbooks.org/plantdisease/host-disease/sugar-beet-beta-vulgaris-powdery-mildew
A few more psyllids found in Treasure and Magic Valleys
Potato All Locations
Potato Psyllid
Posted on: June 22, 2018 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (3 fields), Jerome (1 field), and Twin Falls (1 field).
This week, we collected 10 psyllid from sticky cards (3 light sites and 2 intense sites).
We had traps deployed in 85 of the estimated 97 fields (87%) that will be monitored this year and found psyllids in 5 of the monitored fields (5.8%). However, we are still waiting to receive cards from 19 sites.
All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
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 in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Spider Mite Warning
Landscape and Garden All Locations
Spider Mite
Posted on: June 22, 2018 by Dian Roberson
As temperatures rise in June be on the lookout for spider mites. They can attack a wide variety of crops and ornamentals. Look for bronzing of leaves or mite webbing. Dry, hot conditions favor all spider mites, this is why they are so important in more arid regions like the Treasure Valley. They feed more under dry conditions, as the lower humidity allows them to evaporate excess water they excrete. At the same time, most of their natural enemies require more humid conditions and are stressed by arid conditions. Plants stressed by drought can make them more nutritious to spider mites so check your irrigation systems to make sure they are functioning properly.
» https://pnwhandbooks.org/insect/hort/landscape/common/landscape-spider-mite
» http://extension.colostate.edu/topic-areas/insects/spider-mites-5-507/
UI SNAKE RIVER PEST MANAGEMENT TOURS
All Crops All Locations
Posted on: June 19, 2018 by Jerry Neufeld
The following information is provided by Dr. Pamela Hutchinson, University of Idaho Extension Specialist.
Please mark your calendars and plan to attend the UI Snake River Pest Management Tours. The first one is at Aberdeen on June 26th and the second one is at Kimberly on June 27th. Both field days start at 8:30 am with registration beginning at 8:00.
Aberdeen will feature several weed control trials in potatoes, including targeted herbicide programs in potatoes, Sonalan tank mixtures, and sulfentrazone formulation comparisons. Also, featured are herbicide mechanism of action plots, quinoa herbicide screening and Litchi tomato herbicide management.
At Kimberly, we will look at broadleaf and wild oat control in spring wheat, clover cover crop in wheat, safflower tolerance to sulfentrazone, weed control comparison between direct seeded and conventional tillage sugar beet, potato psyllid, Colorado potato beetle, aphid and wireworm management in potato, an update on the spore trapping network for early plant disease detection in potato, dry bean, sugar beet, and small grains, response of sugar beet to herbicide safener, beet leafminer control in sugar beet, weed control in dry bean, weed control in corn, and herbicide mechanism of action plots.
Both field days conclude with a sponsored lunch and pesticide recertification credits.
We hope to see you there!
Pam and Don
Don W. Morishita, Ph.D.
Superintendent, Professor of Weed Science and Extension Specialist University of Idaho | Kimberly R&E Center | 3806 N. 3600 E. | Kimberly, ID
83341 USA
Email: don@uidaho.edu | Phone: 208.423.6616 | Fax: 208.423.6631
Pamela J.S. Hutchinson
Potato Cropping Systems Weed Scientist
Aberdeen R&E Center
1693 S 2700 W
Aberdeen, ID 83210
Cell ph 208-681-1304
Office ph 397-4181 fax 397-4311
phutch@uidaho.edu
POTATO ASSOCIATION OF AMERICA MEETING
102nd Annual Meeting
July 22-26, 2018
Boise, ID
visit www.uidaho.edu/PAA2018
Ag Talk Tuesday
All Crops All Locations
Posted on: June 18, 2018 by Jerry Neufeld
The following information was provided by Dr. Pamela Hutchinson, Ag Extension Specialist with the University of Idaho.
WHAT: AG TALK TUESDAY
WHEN: JUNE 19,2018
11:30a to 1p
WHERE: THE BAY CAFE, AMERICAN FALLS
2830 Marina Rd
American Falls, ID 83211
(208) 226-2688
Potato, weed, and cereal pathology specialists have initiated "Ag Talk Tuesday" with multiple ATT sessions throughout the growing season in order to interact with University of Idaho specialists and get answers as well as discuss current crop status. We learn from you, too!
Please come to our third UofI Extension Ag Talk Tuesday, on June 19, from
11:30 AM to 1:00 PM.
This event is a non-host lunch where you can join UofI Ag Extension Specialists to talk about current ag production issues. We'd love to hear about what you are seeing in your fields. To help foster conversation, Drs Pamela J.S. Hutchinson, Kasia Duellman will give an update on potato diseases, insects, and weeds. Other specialists and county extension educators may also be present to help field any questions you may have or to hear about your own wisdom and experiences on what works and doesn't work on your farm.
Please join us Tuesday June 19th.
Contact Pamela J.S. Hutchinson for more information.
phutch@uidsho.edu
Future ATTs
June 26 - no ATT (Hutchinson Snake River Research Pest Management Tour - Aberdeen R and E Center 8a registration 8:30-noon tour followed by sponsored lunch.
July 3 - no ATT
July 10 - Burley (venue to be determined)
July 17 - Idaho Falls
First potato psyllid found in Magic Valley
Potato All Locations
Potato Psyllid
Posted on: June 15, 2018 by Lucy Standley
Psyllids were collected this week on sticky traps in potato in the following counties: Canyon (3 fields), Owyhee (1 field), and Twin Falls (1 field).
This week, we collected 6 psyllid from sticky cards (5 light sites).
We had traps deployed in 75 of the estimated 85 fields (88%) that will be monitored this year and found psyllids in 5 of the monitored fields (5.8%).
The psyllid collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
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 in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Another psyllid found in Treasure Valley; none in Magic Valley
Potato All Locations
Potato Psyllid
Posted on: June 8, 2018 by Lucy Standley
One potato psyllid was collected on a sticky trap in potato in the following county: Canyon (1 field).
This week, we collected one psyllid from sticky cards (1 light site).
We had traps deployed in 50 of the estimated 89 fields (56%) that will be monitored this year and found one psyllid in one of the monitored fields (2%).
The psyllid collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.
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 in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
First potato psyllid found in Idaho potato fields this season
Potato All Locations
Potato Psyllid
Posted on: June 1, 2018 by Lucy Standley
One potato psyllid was collected on a sticky trap in potato in the following county: Canyon (1 field).
This week, we collected one psyllid from sticky cards (1 light site).
We had traps deployed in 50 of the estimated 88 fields (57%) that will be monitored this year and found one psyllid in one of the monitored fields (1.13%).
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 in Intense and Light sites.
--Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
Scale on Honeylocust (Nampa)
Landscape and Garden All Locations
Pulvinaria innumerabilis
Posted on: May 30, 2018 by Rich Guggenheim
Cottony maple scale occasionally builds up in large numbers on branches and leaves of honeylocust, becoming quite conspicuous as egg sacs swell in June and July. The overwintering stage of this scale (mated female) can be controlled with dormant oil applications made before new growth in spring. These treatments also can help suppress spider mites, eriophyid mites and plant bugs that overwinter on trees.
Newly hatched crawlers generally appear in late June through July and can be controlled at that time with Sevin, Orthene or various pyrethroids. Imidacloprid (Merit) applied as a soil systemic treatment should also be effective, provided sites are irrigated. Natural controls generally maintain cottony maple scale at nondamaging levels and sustained infestations lasting more than one season are very rare.
» http://ipm.ucanr.edu/PMG/PESTNOTES/pn7408.html
» http://extension.colostate.edu/topic-areas/insects/insect-and-mite-pests-of-honeylocust-5-571/
» http://ipm.ucanr.edu/PMG/PESTNOTES/pn7410.html
» https://utahpests.usu.edu/uppdl/files-ou/factsheet/Soft%20Scales%20in%20Utah.pdf
2018 Potato psyllid monitoring program underway in Idaho
Potato All Locations
Potato Psyllid
Posted on: May 25, 2018 by Lucy Standley
The University of Idaho, in collaboration with Miller Research and several crop consultants across the state will continue our monitoring program for potato psyllids, zebra chip, and liberibacter (Lso), the bacterium that causes zebra chip. The monitoring program covers commercial potato fields throughout southern Idaho and currently is funded in part by USDA and generous in-kind contributions by our collaborators.
The first deployment of sticky cards occurred last week in 17 Treasure Valley sites and 21 Magic Valley sites. Next week we expect to initiate sampling in 8 and 17 additional fields in the Treasure and Magic valleys, respectively.
This week we collected our first sticky cards of the season from potato fields. No potato psyllids were found in potato fields this week.
More details on the program will be forthcoming as we continue to ramp up sampling efforts. We hope to maintain a monitoring program at a level similar to recent years, but the breadth of the program this year will depend on funding that is still pending.
More information and resources on potato psyllids and zebra chip, including management and scouting recommendations, can be found at the link below.
http://www.uidaho.edu/cals/potatoes/news/psyllid-management
Western Cherry Fruit Fly 2018
Cherry Treasure Valley
Western Cherry Fruit Fly
Posted on: May 25, 2018 by Paul Castrovillo
On May 22 the first 2018 Western Cherry Fruit Fly captured in an Idaho State Department of Agriculture WCFF trap was reported from Canyon County. Historically we expect to find WCFF in Gem County about a week after the first one is found in Canyon County.
Online phenology and degree-day models for WCFF predict first flight on May 21 in Ontario and Parma, May 24 in Caldwell, May 25 in Emmett, May 29 in Boise and May 31 in Nampa.
If treatment for WCFF is not already underway it should begin now.
For more information contact Paul Castrovillo at paul.castrovillo@isda.idaho.gov or call 208-332-8627.
» https://pnwhandbooks.org/insect/tree-fruit/cherry/cherry-western-cherry-fruit-fly
» http://wci.colostate.edu/Assets/pdf/western.cherry.fruit.fly.pdf
» https://extension.wsu.edu/chelan-douglas/agriculture/treefruit/pestmanagement/cherryfruitfly/
Ag Talk Tuesdays
All Crops All Locations
Cereals, Potatoes, Weeds - in the future, additional crops will be included coincident with location of ATT
Posted on: May 23, 2018 by Juliet Marshall
Potato, weed, and cereal pathology specialists are initiating "Ag Talk Tuesday" with multiple ATT sessions throughout the growing season in order to interact with University of Idaho specialists and get answers as well as discuss current crop status.
Details:
WHAT: Ag Talk Tuesday - no host lunch
WHEN: June 5 at 11:30 AM - 1:00 PM
WHERE: first one at Homestead Family Restaurant in Blackfoot, ID
We'd like to invite you to our first ever UofI Extension Ag Talk Tuesday, on June 5, from 11:30 AM to 1:00 PM.
The plan is to have multiple ATT sessions throughout the growing season in order to interact with University of Idaho specialists and get answers as well as discuss current crop status.
What: The FIRST EVER UofI Extension "Ag Talk Tuesday"
When: June 5, 11:30AM to 1:00PM
Where: Homestead Family Restaurant, 1355 Parkway Dr, Blackfoot, ID 83221 https://goo.gl/maps/GqfR7oghVNt
This event is a non-host lunch where you can join UofI Ag Extension Specialists to talk about current ag production issues. We'd love to hear about what you are seeing in your fields. To help foster conversation, Dr. Juliet Marshall will present some information on Fusarium head blight on small grains and the 2018 outlook; Dr. Pam Hutchinson will provide some tips on post-emergence herbicides; and Dr. Kasia Duellman will give an update on early season potato diseases. Juliet and Kasia will also mention the UofI Spore Trapping Network that will be fully operational by then. Other specialists and county extension educators may also be present to help field any questions you may have or to hear about your own wisdom and experiences on what works and doesn't work on your farm.
Please join us, and if you plan to attend, please RSVP to me by replying to this email or calling and leaving a message at 208-529-8376.
Future locations for Ag Talk Tuesday will be determined, to accommodate growers in different regions (we’re open to suggestions for venues and would like to rotate around eastern Idaho).
Sincerely,
Juliet
Juliet Marshall, Ph.D.
Endowed Research Professor, Cereals Pathology and Agronomy
Department of Entomology, Plant Pathology and Nematology
Idaho Falls R&E Center
1776 Science Drive Suite 205
Idaho Falls, ID 83402
208-529-8376 office
208-390-4859 cell
http://www.uidaho.edu/extension/cereals/scseidaho
