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Chlorpyrifos Survey
All Crops All Locations
Posted on: February 21, 2021 by Stuart Reitz
Please help us gather valuable information about chlorpyrifos (Lorsban and related insecticide products).
Restrictions on the use of chlorpyrifos and the complete revocation of its registration are under way. Our team has initiated a cross-commodity collaborative research project to identify viable options as alternatives to chlorpyrifos. Research will be conducted at several locations in Oregon to determine the efficacy of currently registered chemistries and newer products in onion, corn, cherries, grass seed, and clover seed. This survey will provide critical information on the use of chlorpyrifos across all crops and will help us identify issues to improve our research project.
https://oregonstate.qualtrics.com/jfe/form/SV_28ZDP4ZJ282CcES
Survey participants are eligible for a $25 gift card.
If you have questions or comments about the project, please contact Silvia Rondon, Project Leader, OSU Hermiston Agricultural Research and Extension Center, 541-567-8321, silvia.rondon@oregonstate.edu.
Sent on behalf of project team: Silvia Rondon, Stuart Reitz, Navneet Kaur, Daniel Lightle, and Chris Adams.
Thank you for your assistance,
» https://oregonstate.qualtrics.com/jfe/form/SV_28ZDP4ZJ282CcES
Research and Outreach Programming for Pulse Crops
All Crops All Locations
Posted on: February 9, 2021 by Jerry Neufeld
Montana State University needs your help to improve our research and outreach programing for pulse crops. We’ve created a survey to help us collect information that will directly impact what we research, how we develop our future programming, and also increase our ability to apply for pulse crop research funding.
The survey should take about 10 minutes to complete. You can use your phone, computer, or tablet.
Your responses are completely anonymous – we have no way of connecting people to answers. Also, the data we collect are always aggregated (all answers summarized together), so that individual responses are never seen by anyone but the researchers.
Here’s a link to the survey: https://bit.ly/Pulses2021; you can copy it into your browser.
If you have any questions about the survey or our research, please don’t hesitate to contact Mary Burrows at mburrows@montana.edu or my research associate at monica.brelsford@montana.edu or by phone at (406) 994-5155.
Thank you for helping out research and Extension!
2021 Miller Research Potato Disease Management Seminars
Potato All Locations
Posted on: January 28, 2021 by Jeff Miller
Due to the COVID-19 pandemic, Miller Research will not be holding its annual Potato Pest Management Meeting. Instead, we will be having four 1-hour virtual seminars where we will discuss four different topics related to potato disease management. One CCA (integrated pest management) credit and one ISDA pesticide recertification credit have been awarded for each session. You will be required to answer some participation questions in order to get the ISDA credit. Each session will run from 12:00 noon to 1:00 pm. Registration is free.
Meetings will be held by Zoom and registration is required separately for each session. To register for each session, click on the link. You will be taken to a page where you need to enter your name and email address. After successfully registering, you will receive a confirmation email that contains the link to log into the session.
Pre-License Online Training
All Crops All Locations
Posted on: January 27, 2021 by Jerry Neufeld
The University of Idaho will be conducting an online Pre-License Training for those people wanting to receive training prior to taking the examinations for a pesticide applicator license. Click on the pdf below for more information.
2021 Virtual Bean School
Dry Beans All Locations
Posted on: January 12, 2021 by Jerry Neufeld
The 2021 Treasure Valley and Magic Valley Bean Schools will be virtual this year. The Bean School will be held January 27 and 28 in the morning. There will be 2 Idaho pesticide licenses credits available. Click on the pdf below for more information.
Idaho and Eastern Oregon Onion Crop Protection Zoom Meeting
All Crops All Locations
Posted on: January 6, 2021 by Jerry Neufeld
The Idaho and Eastern Oregon Onion Crop Protection Meeting will be on Zoom this year. It will be held Tuesday, February 2nd from 9 am to 12 pm. Click on the pdf below for the link and more information. There will be one Idaho license credit.
» Idaho_Eastern_Oregon_Onion_Crop_Protection_Meeting_agenda.pdf
Virtual Idaho Potato Conference January 19-21, 2021
Potato All Locations
Idaho Potato Conference
Posted on: January 4, 2021 by Nora Olsen
Registration is open! Plan to attend the 53rd annual Idaho Potato Conference January 19-21, 2021. Given the unusual times of a global pandemic, the Idaho Potato Conference shifted from the annual in-person conference held in Pocatello to three days of virtual presentations. The 20-minute pre-recorded presentations with an additional 5 minutes of live Q and A will be given throughout the morning of each day (8 am to noon MT). In addition, 5-minute updates by leading potato industry companies will be included each day.
Spanish Language Session will also be offered virtually for 2021. This session will be held from 1 to 3 pm on January 19th. Topics in Spanish will include reducing bruise, grading potatoes, common storage disease and much more. There will be short videos and live discussions led by University of Idaho extension educators Joseph Sagers and Jason Thomas.
Highlights for this year’s three-day virtual conference include:
• The virtual format allows us to invite many of our colleagues from outside of Idaho. We are pleased to have
o Dr. Paul Bethke from USDA-ARS in Wisconsin to discuss “Tuber lenticels”— what is their function and why do they become enlarged?
o Dr. Andy Robinson from North Dakota University/University of Minnesota – to elaborate on the seasonal topic of “Managing brown center and hollow heart”
o Dr. Ken Frost from Oregon State University will provide a much-needed summary on the “Blackleg/soft rot disease in potatoes”
o Dr. Mark Pavek from Washington State University will provide “Cultural management updates on Clearwater Russet and Alturas” and his graduate student Francisco Gonzalez will provide new (and old) information on “Measuring soil moisture in potato fields”
• The remainder of the 20-minute presentations will focus on a wide variety of topics:
o Changes in potato quality during packing and shipping
o Factors that impact development of bruises
o Analyzing the annual Idaho potato price change during crop transition
o What makes new varieties better than Burbank?
o Susceptibility of russet cultivars to common potato diseases
o Learning to use growth regulators
o Managing early die in potatoes
o Best management practices for pink rot and Pythium leak
o Soil-borne diseases – what causes them and what you can do about it
o Potato Mop Top virus (PMTV) and other viruses
o Diagnosing and predicting foliar diseases in Idaho
o What happened to Zebra Chip in ID?
o Variety reaction to Zebra Chip and interaction with PVY
o Volunteer potato control
o Using plant-pest interactions to build resistance
o What does healthy soil look like in Southern Idaho?
o Sustainability and the potato industry: working together to meet customer and consumer demands
o Idaho Potato Commission update
Idaho Pesticide License Recertification credits (3) will be available on January 20th. Attendees are required by ISDA to pass a short on-line quiz to receive credits.
Registration is free, but you must register in advance—including the Spanish language session. Additional details regarding the agenda, topics, and registration can be found at the conference website www.uidaho.edu/cals/potatoes/news/idaho-potato-conference.
» https://www.uidaho.edu/cals/potatoes/news/idaho-potato-conference
PNWPestAlert.net surveys
Announcements All Locations
Posted on: December 21, 2020 by Jerry Neufeld
Thanks to everyone that completed a 2020 PestAlert.net survey. Mia, Cody and Tom were randomly selected for the Amazon gift cards. They will be put in the mail today.
2020 Idaho Association of Plant Protection Annual Meeting update
All Crops All Locations
Posted on: October 28, 2020 by Jeff Miller
With the current situation regarding COVID-19, the Idaho Association of Plant Protection has decided to not hold an in-person meeting in 2020. Instead, we will meet virtually using Zoom. There will be no cost to participate in the meeting.
The program will run from 1:00 PM to 5:00 PM on Wednesday, November 4, and 8:00 AM to 12:00 PM on Thursday, November 5. A total of 7.5 Certified Crop Advisor (CCA) and 7 ISDA Pesticide Recertification credits (ISDA) are available. Participants wishing to get ISDA credits will need to pass an online test as a way to verify attendance.
Information on the agenda and how to register can be found in the attached flier and link.
» https://millerresearch.com/event/2020-idaho-association-of-plant-protection-annual-meeting/
Armyworm damage in eastern Idaho wheat fields
Small Grains Eastern Idaho
armyworm
Posted on: October 6, 2020 by Jerry Neufeld
The following information is provided by Dr. Arash Rashed, Associate Professor, Department of Entomology, Plant Pathology and Nematology at the University of Idaho.
There have been reports of fall armyworm damage in some wheat fields between American Falls and Firth in eastern Idaho. Please inspect your fields as managing this pest is more effective during the early stages of development. Fall Armyworms are active during dark, so field inspections need to be done with a flashlight after sunset. They have a wide host range but prefer grasses; at this time of the year, wheat, barley, alfalfa, volunteers, and pasture are examples of crops that can host fall armyworms. They feed on foliar tissue and can consume young seedlings to the ground. During the day they hide in plant litter and/or just below the soil surface. There are no set thresholds and management recommendations depend on the stages of plant and larval development and the extent of the damage. More than 2-3 larger larvae (> 1/2in) per square foot may require control. Scout as many spots as possible within a field. Damage by fall armyworm is usually patchy and spot insecticide treatment is a possibility, where needed. Larvae cannot survive freezing temperatures and are also susceptible to diseases caused by entomopathogens at high densities.
For other closely related species and damage, you can visit pages 493-499 of the publication in the first link below:
You can also learn more about this pest from the PNW Insect Management Handbook in the second link below:
» http://pubs.cahnrs.wsu.edu/wp-content/uploads/sites/2/2017/06/em108-ch11.pdf
» https://pnwhandbooks.org/insect/agronomic/small-grain/small-grain-cutworm-armyworm
Lso results delayed
Potato All Locations
Potato Psyllid
Posted on: September 17, 2020 by Lucy Standley
Last week’s Lso results are delayed because of the shutdown of main campus buildings due to wildfire smoke. We expect to post the results to our website by the end of next week. Sorry for any inconvenience.
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.
University of Idaho Pesticide Recertification Webinar Series, Fall 2020
All Crops All Locations
Posted on: September 15, 2020 by Jerry Neufeld
The University of Idaho Pesticide Recertification trainings will not be the same this fall as they have been in the past years. In many cases, if not all, in person training will not be offered. However, you will still be able to get the credits needed for your license. Click on the pdf below for information on how to get license credits through the University of Idaho Pesticide Recertification Webinar Series.
Fall 2020 ISDA Pesticide Disposal Program
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Posted on: September 15, 2020 by Jerry Neufeld
The Idaho State Department of Agriculture has released their schedule for the fall 2020, Pesticide Disposal Program. Click on the pdf below for all the details.
Final psyllid trap capture report for the 2020 season
Potato All Locations
potato psyllid
Posted on: September 10, 2020 by Erik Wenninger
This week we had traps deployed in 45 of the 65 fields (69%) monitored this year; 20 fields had been vine killed and were not monitored. We found a total of 105 psyllids across 16 (35%) of the 45 fields.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (5 fields), Owyhee (1 field), Elmore (4 fields), Twin Falls (5 fields), and Power (1 field).
From last week’s samples, no psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC).
We are not including “heat maps” this week given that they tend to show skewed patterns with smaller sample sizes.
This week concludes our 2020 psyllid monitoring program, following recommendations from our ZC Advisory Committee of shortening the duration. However, we will report on the last set of Lso results next week.
Total psyllid captures are still down from two weeks ago and based on previous years’ observations we would expect their numbers to continue to reduce; however, psyllids likely will continue dispersing among the remaining fields as vine kill continues. Overall captures of psyllids this season were higher than the last two seasons, though still nowhere near as high as the “epic” years of 2016 and 2012. Thus far, we have also seen our lowest incidence of Lso-positive psyllids yet (0.4%). Together, we expect that the modest psyllid abundance and very low Lso incidence this year should result in relatively low incidence of ZC in harvested tubers. But remember that, at least in our experiments with Russet Burbank, some risk of ZC remains if infection occurs within 1-2 weeks before vine kill.
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.
September 3, 2020 Psyllid Monitoring Update
Potato All Locations
Potato Psyllid
Posted on: September 3, 2020 by Lucy Standley
This week we had traps deployed in 48 of the 65 fields (73%) monitored this year; 17 fields have been vine killed and will no longer be monitored. We found a total of 92 psyllids across 18 (37%) of the 48 fields.
Psyllids were collected on sticky traps in potato in the following counties: Canyon (7 fields), Owyhee (1 field), Elmore (4 fields), Twin Falls (4 fields), and Power (2 fields).
From last week’s samples, no psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). However, due to shipping delays from last week, a few Lso results will be delayed until next week.
We are not including “heat maps” this week given that they tend to show skewed patterns with smaller sample sizes.
Total psyllid captures were down considerably this week, which was related to fewer fields being monitored but also fewer captures in most of the remaining fields. It appears that we saw peak seasonal captures last week. However, remember that, at least in our experiments with Russet Burbank, some risk of ZC remains if infection occurs within 1-2 weeks before vine kill.
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.
August 28, 2020 First Lso-positive psyllid found in Canyon County
Potato All Locations
Potato Psyllid
Posted on: August 28, 2020 by Lucy Standley
This week we had traps deployed in 60 of the 65 fields (92%) monitored this year; five fields have been vine killed and will no longer be monitored. We found a total of 199 psyllids across 35 (58%) of the 60 fields.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (12 fields), Owyhee (2 fields), Gem (1 field), Elmore (5 fields), Gooding (1 field), Jerome (4 fields), Twin Falls (6 fields), and Power (3 field).
From last week’s samples, one psyllid (collected in Canyon County) tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). However, due to shipping delays from last week, a few Lso results will be delayed until next week.
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. The heat maps graphically reflect the relatively high abundance of psyllids collected in some fields in Canyon and Twin Falls counties.
Total psyllid captures were the highest we have observed this year, which is not surprising given that captures typically increase toward the end of the season, likely in part due to increase dispersal in relation to senescence and vine kill. We continue to urge growers to maintain their IPM programs. Tubers may still be at high risk of ZC if infection occurs 3 or more weeks before vine kill; in our experiments with Russet Burbank, risk diminishes within 1-2 weeks before vine kill but does not disappear.
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.
» http://www.uidaho.edu/cals/potatoes/news
Grasshoppers
Small Grains Eastern Idaho
Grasshoppers
Posted on: August 27, 2020 by Jerry Neufeld
The following information is provided by University of Idaho Extension Specialists, Drs. Arash Rashed and Juliet Marshall.
Recent reports from Montana are indicating the presence of grasshoppers in large numbers, an observation which has raised concern for winter wheat planting across the region. Although grasshopper populations are expected to decline in late summer and fall, young winter wheat and barley fields may be at risk if large numbers of grasshoppers are present at planting and crop emergence. The presence of 11-20 grasshoppers in one square yard (9 square feet) of natural border vegetation around a recently planted wheat field would be alarming and could result in significant damage upon seedling emergence.
Insecticide applications in form of seed treatments, foliar applications, and/or baits are primary approaches when large number of grasshoppers are present. However, delayed fall planting is also recommended to be integrated into the management protocol as it would minimize the window of fall crop exposure to grasshoppers. Monitor fields and surrounding vegetation. If large grasshopper populations are present, contact Idaho State Department of Agriculture (ISDA Mormon Cricket and Grasshopper Control Program at the link below. ISDA’s Mormon Cricket and Grasshopper Control Program provides pest management recommendations and assistance to producers and ranchers across Idaho.
Idaho Association of Plant Protection 2020 Annual Meeting - November 4-5
All Crops All Locations
Posted on: August 20, 2020 by Jeff Miller
With the current situation regarding COVID-19, the Idaho Association of Plant Protection has decided to not hold an in-person meeting in 2020. Instead, we will meet virtually using Zoom. This is an invitation and call for virtual presentations covering all aspects of plant protection including entomology, nematology, weed science, and plant pathology.
Please consider contributing research results, observations, unusual pest and disease occurrences and topics that could be discussed as a group, etc. to the meeting. We currently envision allotting each presentation a 20-minute time slot, but this may be adjusted based on the number of submissions.
Traditionally the program has gone from 1:00 PM to 5:00 PM on Wednesday and 8:00 AM to 12:00 PM on Thursday. The length of the program will be dictated by the number of submissions. A final program will be advertised in October. Participation in the meeting will be free. We will attempt to certify the meeting for Certified Crop Advisor (CCA) and Pesticide Recertification credits (ISDA).
Please reply by email if you would like to attend, or if you would like to present.
August 20, 2020 Psyllid Monitoring Update
Potato All Locations
Potato Psyllid
Posted on: August 20, 2020 by Lucy Standley
This week we had traps deployed in 62 of the 65 fields (95%) monitored this year; three fields have been vine killed and will no longer be monitored. We found a total of 124 psyllids across 26 (41%) of the 62 fields. Of the 124 psyllids captured, 59 (47%) were found across 3 fields at University of Idaho Kimberly Research Center (KREC).
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (10 fields), Owyhee (1 field), Gem (2 fields), Elmore (5 fields), Jerome (2 fields), Twin Falls (4 fields), and Power (1 field).
From last week’s samples, no psyllids so far have tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). However, due to shipping delays from last week, a few Lso results will be delayed until next week.
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. The heat maps graphically reflect the relatively high abundance of psyllids collected in some fields in Twin Falls County.
Total psyllid captures dropped notably relative to last week, though high captures were still observed at KREC. We continue to urge growers to have their IPM programs in place, especially where psyllid numbers have been relatively high. Tubers may still be at high risk of ZC if infection occurs 3 or more weeks before vine kill; in our experiments with Russet Burbank, risk diminishes within 1-2 weeks before vine kill but does not disappear.
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.
» http://www.uidaho.edu/cals/potatoes/news
Pesticide Math Training, Online
All Crops All Locations
Posted on: August 19, 2020 by Kimberly Tate
The UI Extension Pesticide Safety Education Program has produced three educational online training courses available for pesticide applicators, Master Gardeners, and homeowners. The Calculate Pesticides series includes real-world pesticide calculations in the following courses:
1) General Math – review basic math concepts needed for calculating pesticides.
2) Using Sprayers – develop math skills for calibrating yourself to application equipment.
3) Application Rates – identify the math formulas necessary to calculate pesticide application rates.
Simply, create your account at the National eXtension website by using this address https://campus.extension.org/course/view.php?id=1588 (also linked below). Each user must have their own identification name and password. Once you confirm your free account, you will have unlimited access to these online educational materials. If you have any questions, please contact Kimberly Tate at ktate@uidaho.edu.
Aug 18 - Ag Talk Tuesday - Last one for 2020!
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Ag Talk Tuesday - ATT - last one of the season!
Posted on: August 17, 2020 by Kasia Duellman, Juliet Marshall, Pam Hutchinson
August 18 - 11:00 AM Mountain, Please join us for the final Ag Talk Tuesday of the 2020 growing season! We will provide crop updates followed by two guest speakers:
Jason Thomas will discuss Starling Management on Dairies. Linda Schott will discuss Soil Health Assessment.
Information in regards to registration are available at:
https://webpages.uidaho.edu/extension-seed-potato/ATT.html
The Zoom meeting ID for those who have already registered is: Meeting ID: 349 427 773
» https://webpages.uidaho.edu/extension-seed-potato/ATT.html
Corn Earworm Counts - 8/16/20
Corn Treasure Valley
corn earworm
Posted on: August 16, 2020 by Jerry Neufeld
Click on the pdf below for the corn earworm moth counts from this morning, August 16. There are still moths around this week, but there is less fresh silk for them to lay eggs in. The traps have been removed from the fields, there will be no more moth counts this growing season.
University of Idaho Small Grains Extension Variety Trial Results Are Available
All Crops All Locations
Posted on: August 13, 2020 by Juliet Marshall
https://cropalerts.org/news/
It's harvest time for small grains!
The Preliminary Extension Variety Trial Results will be posted to https://cropalerts.org/news/ as they become available. If you wish to receive announcements via email, please email me at jmarshall@uidaho.edu
Currently, Kimberly Winter Wheat, Rupert Spring wheat and Rupert spring barley results are posted.
Also, if you haven't gotten a chance to view the Southeastern Idaho Cereal Variety VIRTUAL Field Day, the presentations are also available at both Crop Alerts and my cereals homepage.
August 13, 2020 Psyllid Monitoring Update
Potato All Locations
Potato Psyllid
Posted on: August 13, 2020 by Lucy Standley
This week we had traps deployed in 64 of the 65 fields (98%) monitored this year; one field has been vine killed and will no longer be monitored. We found a total of 181 psyllids across 25 (39%) of the 64 fields. Of the 181 psyllids captured, 115 psyllids (63%) were found across 3 fields at University of Idaho Kimberly Research Center (KREC). Because this is an unusually high number of psyllids, we will only be testing a subset for Lso at this time.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (8 fields), Owyhee (1 field), Gem (1 field), Elmore (2 fields), Gooding (1 field), Jerome (1 field), Twin Falls (8 fields), and Power (2 fields).
From last week’s samples, no psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC).
“Heat maps” of this week’s results are included on the UI and WSU websites (see links below). “Heat maps” describe predicted psyllid densities across the landscape, based on our trap counts and on predictive models developed over six years of psyllid monitoring in Idaho. The heat maps graphically reflect the relatively high abundance of psyllids collected in some fields in Twin Falls County.
Total psyllid captures were higher this week; however, captures for most fields were lower, and this increase can be attributed to surprisingly high captures at KREC. Captures were relatively high in a few other Magic Valley fields, though not to the extent observed at KREC. The reason for this is not clear. We continue to urge growers 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.
» http://www.uidaho.edu/cals/potatoes/news
Corn Earworm Counts - 8/12/20
Corn Treasure Valley
corn earworm
Posted on: August 12, 2020 by Jerry Neufeld
Click on the pdf below for the corn earworm moth counts from this morning, August 12. There are quite a few more moths this week. There are corn earworm moths around the valley, scouting on a more localized basis is still probably a good thing to do.
