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Stripe Rust confirmed to have overwintered in susceptble winter wheat
Wheat All Locations
stripe rust of wheat
Posted on: April 5, 2016 by Juliet Marshall
I found stripe rust in two fields in south east Idaho on April 4, 2016. The first location was south of Aberdeen in a field of commercial wheat (Brundage).
The second location between American Falls and Pocatello was in a field of volunteer wheat (also Brundage) where stripe rust was found in November, 2015.
A report came in from CPS that a field of Brundage east of Wendell, ID, also has stripe rust (thank you Chris!!!)
From the symptoms, location on the lower leaves, and as one of the locations had confirmed stripe rust prior to the onset of winter, the existing stripe rust has overwintered from fall infections.
I highly recommend that anyone with a field of Brundage examine it closely for stripe rust, looking especially at lower leaves that could have been infected last fall. Snow cover protects wheat as well as the stripe rust from freezing temperatures. Fields that have been under snow will serve as good reservoirs for stripe rust to carry into our spring wheat.
All susceptible varieties should be scouted weekly from now on. Please report infected fields (the approximate location) and send pictures so I can keep alerts updated as the season progresses (jmarshall@uidaho.edu). This helps everyone!
Strobilurin fungicides are excellent preventative fungicides, as are triazoles. Triazoles (or triazole and strobilurin mixes) are more effective if there is a field with established infections. The attached table is (not a complete) list of fungicides put together by a group of pathologists belonging to the NCERA-184, with ratings for degree of control of several wheat diseases.
At this point:
1) Spray fungicides at herbicide timing on susceptible varieties of winter wheat.
2) Select resistant spring varieties, if possible.
3) Be prepared to spray susceptible winter and spring varieties as needed to protect from yield loss - this may be two or more applications of fungicides during the growing season.
4) Scout ALL varieties as there are sometimes changes in the fungal strains, and those varieties that are currently resistant may become susceptible if there are race changes in the fungi.
The use of resistant varieties is the most sustainable and economically viable method of stripe rust control. Breeders work hard to develop resistant varieties in order to help growers save input costs. It is not necessary to spray resistant varieties – in fact, not spraying resistant varieties will contribute to longer-term effectiveness of available fungicides.
The symptoms may not look like the typical long yellow-orange stripes that you see later in the season, but will look more like this:
(see attached picture)
IDAHO - 24(c) label for Outlook applied to onions through drip irrigation
Onion Treasure Valley - Idaho
Yellow Nutsedge
Posted on: April 4, 2016 by Stuart Reitz
IDAHO has a new Special Local Needs (24C) label for applying the herbicide Outlook to onions through drip irrigation for yellow nutsedge control.
Applications can be made from the 2 - 6 leaf stage of the onion crop, with a maximum application rate of 14 oz of Outlook per acre. A total of 21 oz. per season may be applied to a crop.
Please consult the label for complete instructions.
Research conducted at the Malheur Experiment Station has shown improved yellow nutsedge control with drip applications compared with conventional post-emergence foliar applications (http://cropinfo.net/pdf/ar/2014/2014-011-OnionOutDrip.pdf). Please note the research was conducted with one variety, "Vaquero".
To make drip applications of Outlook, users must have the 24(c) label and the entire Outlook container label in possession at the time of pesticide application.
For distribution and use only in Ada, Canyon, Gem, Owyhee, Payette, and Washington Counties in Idaho
Clarification on seed treatment for late blight
Potato All Locations
Late Blight
Posted on: April 1, 2016 by Jeff Miller
A point of clarification on the announcement for using seed piece treatments to manage late blight: State registrations have not yet been granted in ID, OR or WA for the use of Revus at this time. However, it is expected soon. Do not use Revus until the state registrations are in place. If you are going to use a seed treatment for late blight and the state registration is not in place, please choose another fungicide.
Seed treatment for late blight management in potato
Potato All Locations
Late Blight
Posted on: March 31, 2016 by Jeff Miller
The widespread presence of late blight in 2015 has created the possibility of late blight coming into commercial potato production through infected seed. If growers suspect their seed may have late blight, they should treat with a seed treatment effective against late blight. Mancozeb dust (6%) is an effective treatment. Some liquid seed treatments are also available and research has shown them to be more effective than just using 6% MZ dust alone. Curzate (cymoxanil), Reason (fenamidone), and now Revus (mandipropamid) are labeled for treatment of seed for the control of late blight.
Frost Advisory
All Crops All Locations
Frost
Posted on: March 25, 2016 by Rich Guggenheim
Temperatures are expected to drop into the mid to upper 20s tonight. Protect tender plants.
Freeze can damage fruit buds and young fruit. The level of damage is directly related to cold intensity and duration as well as bud developmental stage. Information on that can be found at
http://extension.usu.edu/files/publications/factsheet/pub__5191779.pdf
and
http://extension.colostate.edu/docs/pubs/garden/07426.pdf
More information on frost protection and season extension can be found below
http://www.ext.colostate.edu/mg/gardennotes/722.html
For more information, contact your local University of Idaho Extension office or visit
http://www.extension.uidaho.edu/
» http://extension.usu.edu/files/publications/factsheet/pub__5191779.pdf
» http://www.ext.colostate.edu/mg/gardennotes/722.html
Time to apply pre-emergent for crabgrass control
Announcements All Locations
Posted on: March 7, 2016 by Dian Roberson
Crabgrass can be difficult to control in lawns after it has germinated. Now is the time to apply a pre-emergent herbicide to control crabgrass and some other broad leaf weeds. A pre-emergent herbicide is one that kills seedlings as they emerge. To be effective they need to be applied before the weed pest appears. Here is some information about identifying crabgrass and how to control it.
» http://pnwhandbooks.org/weed/crabgrass-smooth
» http://www.ext.colostate.edu/ptlk/1541.html
» http://extension.colostate.edu/docs/pubs/garden/03101.pdf
» http://lawncare.about.com/od/organiclawncare/a/corn_gluten.htm
Glyphosate Tolerant Creeping Bentgrass: Meeting with USDA - March 1
All Crops All Locations
Glyphosate tolerant creeping bentgrass
Posted on: February 23, 2016 by Stuart Reitz
On March 1 from 5-7 pm Sid Abel Assistant Deputy Administrator of USDA APHIS’ Biotechnology Regulatory Services will provide an overview of APHIS’ role in the regulation of glyphosate tolerant creeping bentgrass, information on the recent agreement with the The Scotts Company, and the new petition for deregulation.
The overview will be followed by a Q&A session.
If you have concerns regarding glyphosate tolerant bentgrass, please plan to attend.
The meeting will be at the Malheur County Extension, 710 SW 5th Ave., Ontario, OR 97914. 541-881-1417
Cull Onion Disposal 2016
Onion Treasure Valley
onion maggot
Posted on: February 22, 2016 by Jerry Neufeld
The Idaho State Department of Agriculture has prepared a news release reminding the onion industry about the rules for cull onion disposal to control onion maggot in the Treasure Valley of Idaho. Click on the pdf below for more detailed information.
Mark your calendar for a Virus Detection Training Workshop June 20, Othello, WA
All Crops All Locations
Posted on: February 8, 2016 by Nora Olsen
There will be an important Virus Detection Training Workshop on Monday, June 20th, 2016 at the WSU Research Farm, 1471 West Cox Road in Othello, WA. The workshop will cover field identification of PVY (strains O, N-Wi and NTN), including visual identification of foliar symptoms on 40 major cultivars. We will also have samples of different tuber symptoms from PVY, PMTV and TRV. In addition, we will be discussing and demonstrating new diagnostic assays for viruses and soil-borne vectors of some of the viruses. Additional workshops planned for the week include the WSU Commercial Seed Lot Evaluation (Tuesday June 21st) in Othello, the OSU Potato Field Day at the OSU Research and Extension Center, 2121 S. 1st Street, Hermiston, OR (Wednesday June 22nd) and the WSU Potato Field Day in Othello (Thursday June 23rd). Come and make a week of it!
University and USDA experts at the Virus Detection Training Workshop will include Stewart Gray (USDA-ARS/Cornell), Mark Pavek (WSU), Jonathan Whitworth (USDA-ARS/ID), Amy Charkowski (UWI), Alex Karasev (UID) and Nina Zidack (MtSU). The workshop is part of a USDA NIFA Specialty Crops Initiative award titled “Biological and economic impacts of emerging potato tuber necrotic viruses and the development of comprehensive and sustainable management practices”.
The recent standardization of seed certification programs across the U.S. includes the requirement for documentation of inspector training, but this training will also be beneficial to growers, people who rogue, and industry in general, so please sign up early. To register for the event please visit http://bit.ly/wsu-potatovirusworkshop. For more information about the workshop please email pbg-potatovirus@cornell.edu.
Training for use of ZINC PHOSPHIDE CONCENTRATE
Alfalfa Northern Idaho
Belding Ground Squirrel
Posted on: February 4, 2016 by Stuart Reitz
Laurie Gordon from ODA will conduct the required training class for those in BAKER, CROOK, HARNEY, KLAMATH, LAKE, and MALHEUR COUNTIES OREGON who would like to use Zinc Phosphide concentrate for Belding Ground Squirrel control in alfalfa and mixed grass/alfalfa fields. This is for zinc phosphide used with cabbage bait.
The training will be Feb. 17, from 1-3 PM at the Four Rivers Cultural Center, 676 SW 5th Ave., Ontario, OR.
Please note that this training is required every year before you may purchase, mix or apply this zinc phosphide product.
Please contact the Malheur County Extension office 541-881-1417 / stuart.reitz@oregonstate.edu to reserve a space. There is no charge for the class.
Cereal Schools in February - that's next week!
All Crops All Locations
Posted on: January 26, 2016 by Juliet Marshall
CCA and ISDA Pesticide credits will be available at the University of Idaho's Annual Cereal Schools, Feb 2 - Feb 5th.
Feb 2 in Burley
Feb 3 in Pocatello
Feb 4 in Idaho Falls and Ashton
Feb 6 in Preston
For full details, go to the URL http://www.uidaho.edu/extension/cereals/scseidaho/upcoming-events
to download details of agendas and locations.
Thank you to our lunch sponsors, the Idaho Wheat Commission and the Idaho Barley Commission.
» http://www.uidaho.edu/extension/cereals/scseidaho/upcoming-events
Organic Farming Conference in Caldwell
All Crops All Locations
Posted on: January 20, 2016 by Bill Buhrig
You are all invited to the upcoming Organic Farming Conference in Caldwell!
The “Holy Grail” of Organics – Reduced Tillage Organic Systems
Thursday, January 28, 2016 5 – 9 pm
Friday, January 29, 2016 8:30 am – 5 pm
Register by Monday, January 25.
Registration and conference details at: http://www.pesticide.org/organic_farming_conference_2016. Just click the attached link!
$60 for full conference
$30 for Thursday evening only
$45 for Friday only
Check out all the attached information and we hope to see you there!
» http://www.pesticide.org/organic_farming_conference_2016
7th Annual Soil Health Symposium
Announcements Treasure Valley
Posted on: January 19, 2016 by Jerry Neufeld
The 7th annual Soil Health Symposium will be held at the Four Rivers Cultural Center in Ontario, Oregon on February 18, 2016. Click on the pdfs below for more information.
2016 Treasure Valley Bean School
All Crops All Locations
Posted on: January 14, 2016 by Jerry Neufeld
The Treasure Valley Bean School is January 28 at the Hampton Inn in Nampa. Click on the pdf below for more information.
Texas Road House, Pest Alert Annual Survey
Announcements All Locations
Posted on: December 11, 2015 by Jerry Neufeld
Thanks to everyone that completed a PNWPestAlert.net annual survey. Your participation is appreciated very much.
The people that were randomly selected to receive the three gift cards to Texas Roadhouse are: Steve Lejardi, Jim Klauzer and Jeff Harper. You should get the gift cards by email within 24 hours.
Treasure Valley Irrigation Conference on December 17th
All Crops All Locations
Posted on: December 3, 2015 by Bill Buhrig
The Treasure Valley Irrigation Conference is rapidly approaching and attendees can save $10 on the registration by RSVP'ing by December 11th. The conference is on December 17th at the Four Rivers Cultural Center in Ontario. Please check out the attachment for more details. The day is packed with great presenters and should be a good time! Hope to see you there!
Idaho Ag Outlook Seminars
All Crops All Locations
Posted on: December 3, 2015 by Jerry Neufeld
The University of Idaho Extension System is sponsoring Idaho Ag Outlook Seminars across Idaho on December 8,9, and 10. Click on the pdf below for more information. The seminar in Caldwell is December 10 at the Best Western.
EPA cancels registration for Transform (Sulfoxaflor)
All Crops All Locations
Posted on: November 30, 2015 by Stuart Reitz
On November 12, 2015, the U.S. Environmental Protection Agency (EPA) issued a
cancellation order for all previously registered pesticide products containing the active ingredient sulfoxaflor.
Products include:
EPA Reg. No. 62719-623, Closer SC;
EPA Reg. No. 62719-625, Transform WG; and
EPA Reg. No. 62719-676, Xxpire WG.
Sale and Distribution Prohibited: Under the EPA cancellation order, sale of these
products is prohibited beginning November 12, 2015. Dealers/distributors with
remaining inventory of these products after this date should contact the
manufacturer/registrant, Dow AgroSciences LLC, for guidance on handling the unsold products. These products may not legally be given away or sold; they may be
distributed only to facilitate return to the manufacturer or for proper disposal or lawful export.
Use of Cancelled Products Purchased Before November 12, 2015: Growers/End
users who already possess any of these cancelled products may continue to use the
product(s) according to directions on the container labels until those supplies are
exhausted. The exception is use under FIFRA Section 24(c) Special Local Need labels (SLNs). According to EPA, because SLNs are tied to the parent product, all SLNs have also been cancelled.
For the Treasure Valley, Section 24(c) cancellations include:
SLN OR 150010 - for Lygus in Alfalfa Seed
SLN ID-150007 - for Lygus in Alfalfa Seed
Malheur County Core Pesticide Recertification Class
All Crops Treasure Valley
Posted on: November 23, 2015 by Bill Buhrig
Oregon private applicators can meet their core credit needs with this course on December 11th. Cost is $10. Please refer to the link for more information and the registration form. The four credits offered will also apply to Oregon commercial and public applicators and Idaho private and commercial applicators.
» http://extension.oregonstate.edu/malheur/121115-applicator-recert-class-mc-extension
2nd Annual Malheur County Organic Seminar
All Crops Treasure Valley - Oregon
Posted on: November 23, 2015 by Bill Buhrig
Please join us as we focus on the transition from conventional to organic production for the 2nd annual Organic Production Seminar in Ontario on December 3rd. Check out the attached flier for more info. This meeting is free to the public and we will feed you lunch. Please RSVP so we can get a headcount for lunch and we will see you then!
Happy Thanksgiving to you and yours!
Organic 101 Workshop
All Crops Treasure Valley - Idaho
Posted on: November 23, 2015 by Jerry Neufeld
Click on the pdf below for information about the Organic 101 workshop in Twin Falls on December 3, 2015.
BYD occurring in early planted winter wheat
Small Grains All Locations
Barley Yellow Dwarf
Posted on: November 20, 2015 by Juliet Marshall
Barley Yellow Dwarf Virus is being found in early-planted fall wheat in areas southern and eastern Idaho. Symptoms include various degrees of yellowing, reddening, and purpling of the leaves.
Alate aphids were found in the fields prior to cold temperatures. See the picture of the aphids provided by Dr. David Hole in Logan Utah.
For more information, see the BYD CIS 1210 at: http://www.cals.uidaho.edu/edcomm/pdf/CIS/CIS1210.pdf
or visit the website: http://www.uidaho.edu/extension/cereals/scseidaho
and Click on “Cereal Disease Projects and Information”
and / or “Updates”
2015 Miller Research Potato Pest Management Workshop
Potato All Locations
Posted on: November 18, 2015 by Jeff Miller
Miller Research LLC will be holding its annual potato pest management seminar on December 8, 14, and 15. The same program will be held on all three days. Please RSVP as seating in each session is limited to 45. The meetings will be held at the Miller Research facility located near Rupert, ID (426 E 200 N). Lunch will be provided. There is no cost to attend the meeting. CCA and ISDA credits have been requested.
More information can be found at the accompanying link and in the attached flier.
» http://www.millerresearch.com/alerts/research-news/item/53-mr-potato-pest-management-workshop
University of Idaho, Snake River Sugarbeet Conference
Sugarbeets Treasure Valley
Posted on: November 18, 2015 by Jerry Neufeld
Click on the pdf below for more information about the University of Idaho, Snake River Sugarbeet Conference. The conference is being held in Boise on December 9 and in Burley on December 10.
Upcoming Educational Events in the Treasure Valley
All Crops Treasure Valley
Posted on: November 12, 2015 by Jerry Neufeld
Attached are flyers with information about three upcoming educational events; 1) Pesticide Applicator Recertification Training in Caldwell on December 16. 2) Treasure Valley Irrigation Conference in Ontario, OR on Dec 17. and 3) Soil Health Symposium in Ontario, OR on February 18, 2016. Click on the files below for more information.
» Registration_Form-flyer_2015.pdf
