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stripe rust
Small Grains Treasure Valley - Oregon
stripe rust
Posted on: May 31, 2011 by Jerry Neufeld
Dr. Clint Shock from the OSU Malheur Experiment station is reporting that wide spread stripe rust has been confirmed in Malheur County small grains. Some fungicides can’t be applied after heading and some can be applied up until flowering. In all cases apply according to the label.
Tree Fruit Pest Advisory
Tree Fruits Treasure Valley - Idaho
Advisory Newsletter Attached
Posted on: May 27, 2011 by Tony McCammon
Things have remained cool, but warm weather is coming up. Here are recommendation for what you should do this weekend and through the next couple weeks to be prepared for key pests in your commercial and back yard fruit trees.
In this issue:
Good Year for Virus applications and why?
Codling Moth spray timing
Trapping and scouting
Apple Powdery Mildew
Peachtwig Borer
Western Cherry Fruit Fly.
onion thrips
Onion Treasure Valley - Idaho
thrips
Posted on: May 18, 2011 by Jerry Neufeld
Dr. Mike Thornton from the UI Parma station is reporting that onion thrips adults are being caught on sticky traps, and larvae have been observed on volunteer onions. Even though the crop is behind schedule due to cool weather, he advises that growers begin scouting for thrips in the next few days to help in scheduling the first insecticide application.
stripe rust in winter wheat
Small Grains Treasure Valley - Idaho
stripe rust
Posted on: May 18, 2011 by Jerry Neufeld
UI Cereal Specialist, Dr. Brad Brown is reporting that stripe rust was found yesterday in winter wheat trials at the Parma R&E Center. The wheat is approaching the boot stage so fungicides will be used for control. Commercial fields of wheat and barley need to be scouted ASAP to determine if stripe rust is present so that fungicides can be used prior to the end of the label window for application. For additional information refer to the Extension Cereal website by clicking on “link 1” below.
Other stripe rust alerts for southern Idaho were previously published. That information can be accessed by clicking on “Link 2” below. As the previous alert indicated, do not assume that varieties that have historically had stripe rust resistance will always maintain that resistance. Scouting is essential. A sample of Stephens winter wheat was brought in yesterday with stripe rust present, and Stephens in western Idaho historically has had adequate adult plant high temperature (APHT) resistance. That may no longer be the case.
» http://www.extension.uidaho.edu/scseidaho/disease/disease_index.htm
» http://www.extension.uidaho.edu/scseidaho/disease/strst/5-16-11%20stripe%20rust%20alert.pdf
Pest Advisory Issue 3
Tree Fruits Treasure Valley - Idaho
Codling Moth, Leafroller, ect
Posted on: May 16, 2011 by Tony McCammon
The warm weather has changed things around significantly Fruit pests are on the move. In this attached file you will find updates on:
Codling Moth
Leafroller
Fire Blight
San Jose Scale
If you have any questions please contact me. Also if you would like a topic researched and added to the advisory please email me.
Fire Blight
All Crops Treasure Valley - Idaho
Fire Blight off Cougar blight
Posted on: May 13, 2011 by Tony McCammon
Fire Blight is forecasted for Saturday through Monday of this weekend. Cougarblight models predict high probability of infection. Infection is possible when trees have open flowers, had late season pruning, or open wounds and injured branches. For infection to occur at least two hours of moisture during 70 degree temperatures are necessary. Monitor moisture in your apples and pears. If the wetting occurs and flowers are open, apply an antibiotic such as serenade or agri-mycin. Homeowners can use blight ban or Mico-shield. If you do not choose to control fire blight at this time monitor very closely for new infections and prune them out. They usually show up within 7 to 14 days. More information to follow in Monday’s Advisory.
Stripe Rust Alert
Small Grains All Locations
Pucinnia striiformis
Posted on: May 12, 2011 by Juliet Windes
Aberdeen, Bingham County, Idaho. Stripe rust is being reported in commercial fields as of May 12, 2011, in Brundage soft white winter wheat. Stripe rust also has continued to proliferate on the Aberdeen Research and Extension Center in USDA-ARS material, in UI Breeding plots and in the University of Idaho’s Cereal Extension plots. The infected plants were at the jointing growth stage. New leaves were not yet infected; sporulation was occurring on lower leaves as a result of an overwintering infection (the first I have seen here in southeast Idaho).
On the Aberdeen research station, Brundage had about 30% affected leaves throughout the plot, Moreland about 5% of the leaves affected. Active and abundant sporulation was occurring. Stripe rust was prevalent throughout the winter wheat variety trials, and two out of the four reps of both the soft white winter and hard red / white winter nurseries were sprayed with a fungicide last week.
Weather is very conducive for infection and rapid spread. It is imperative to protect susceptible varieties with a fungicide. Both strobilurin and triazole fungicides are effective in protecting against subsequent stripe rust infections. However, if stripe rust is currently in your crop, it is recommended that you utilize a triazole fungicide for their slightly curative activity. Fungicide ratings for stripe rust are: Excellent = azoxystrobin (Quadris), pyraclostrobin (Headline), metconazole (Caramba), tebuconazole (Folicur), and fungicide mixes rated Excellent for stripe rust includes Proline, Twinline, Quilt.
Additional information and pictures are available on the Cereals Extension website for southern and southeast Idaho: http://www.extension.uidaho.edu/scseidaho/disease/disease_index.htm
» http://www.extension.uidaho.edu/scseidaho/disease/disease_index.htm
Pest Alert Website
Announcements All Locations
Computers
Posted on: May 10, 2011 by Jerry Neufeld
Everyone,
Sorry for the multiple emails about the SWCD meetings for February. We are having website problems with an uncooperative computer. Please accept our apologies.
Jerry
Scab and Blight
Tree Fruits Treasure Valley - Idaho
Apple Diseases
Posted on: May 9, 2011 by Tony McCammon
Apple scab infections occur when leaf wetness extends for as little as six hours in temperatures around 70 degrees. The treasure valley has not had large outbreaks of scab over the past several years due to the reduction of overhead sprinkler use. If you have had a bad scab year in the past two or three years you might consider treating your trees this coming weekend and changing your irrigation system in the future.
Fire Blight infections occur when leaf wetness or high humidity accompany a temperature around 65 degrees or higher for a 24 hour period. The forecast of thunderstorms and moderate temperatures this coming weekend could prove dangerous for your trees. I will keep you posted. Have an antibiotic such as serenade or agri-mycin on hand. Homeowners can use blight ban or Mico-shield.
In both cases young trees are more susceptible than older trees. And young flowers are more susceptible than older flowers.
Fire Blight Next 24 hours
Tree Fruits Treasure Valley - Idaho
Fire Blight
Posted on: May 6, 2011 by Tony McCammon
If you had Fire blight in the past year in your orchard and you have blooms open on your apples or pears. Then you should watch very carefully for leaf wetness and temperatures above 65 degrees in the next 24 hours. If you are more prone to infection then it is recommended that you spray your anti bacterial sprays now. If you are less prone you should keep an eye on the tips of your trees 10 to 12 days from now. That is when the symptoms will begin to make themselves manifest if indeed they were affected in this period.
Good luck!
Nut Growers Conference
Tree Fruits Treasure Valley - Idaho
Posted on: May 6, 2011 by Tony McCammon
The Northern Nut Growers Association is a national organization of amateur and
commercial nut growers, researchers, breeders, and foresters. The NNGA has decided to
hold their 2011 annual meeting in Logan on the USU campus, with USU Extension as a
conference co-sponsor.
This conference should be very educational for growers, hobbyists and master gardeners,
and it is a rare opportunity to have the meeting held in our back yards.
The conference is scheduled for July 17-22. More information can be found at their
conference website http://nngaconference.usu.edu/program.cfm.
UI Tree Fruit Pest Advisory
Tree Fruits Treasure Valley - Idaho
Fruit trees
Posted on: May 2, 2011 by Tony McCammon
The Tree Fruit Pest Advisory Issue 2 Dated May 2
Topics include:
Organic Peach Twig Borer
Degree Day Countdown
Frost Damage
Cold Weather Pollination
Wilbur-Ellis Company Report
If you have a topic you would like written about in this advisory please email tonym@uidaho.edu. Thanks,
cutworms in sugarbeets
Sugarbeets Treasure Valley - Idaho
cutworms
Posted on: April 20, 2011 by Jerry Neufeld
Amalgamated Sugar Company Field Reps are reporting cutworms have been found in sugarbeet fields near Grandview. There are many species of cutworms that attack sugarbeets, but all are nocturnal, so you may see injury but not readily find the insect damaging the sugarbeets. Cutworms are usually worse in fields where there is crop residue, such as following alfalfa. If you see “skips” in the field, dig around in the soil where you would have expected a plant and you will likely find the lower portion of a cut plant. Larvae are often found less than an inch below the soil surface near a damaged plant. If you have any questions, contact your Amalgamated Fieldman.
Fruit Pest Advisory Newsletter
Tree Fruits Treasure Valley - Idaho
Posted on: March 29, 2011 by Tony McCammon
It is that time of year again. I hope these messages will help you get started on the right foot as you control the pests in your orchards. Please feel free to email me if you have additional questions or information you would like posted in the advisories. If you would like me to cover a specific topic feel free to request it through email. Thanks and happy growing. Open the PDF file to view the newsletter.
NPDES permits
Announcements All Locations
Posted on: March 29, 2011 by Jerry Neufeld
There has been much talk this winter about the new rule at EPA requiring producers and other pesticide applicators to have an NPDES permit if applying pesticides near or to water. The original court ruling required that EPA have this permit in place by April 9, 2011. The latest court ruling has just extended this mandate until October 31, 2011. You can see the judge’s ruling by clicking on the pdf below.
Movento for onion thrips
Onion Treasure Valley - Idaho
onion thrips
Posted on: March 21, 2011 by Jerry Neufeld
Idaho has received a section 18 label for use of Movento to use in management of onion thrips in onion bulbs during the 2011 growing season. Growers need to have a copy of the label in hand and follow all label directions. The label can be found on the Idaho State Department of Agriculture website at the following address: http://www.agri.state.id.us/Categories/Pesticides/registration/Section18.php
Onion Cull Order
Onion Treasure Valley - Oregon
Onion Maggot
Posted on: March 14, 2011 by Steve Norberg
Onion Maggot Control Area in Malheur County
603-052-0360
Control Area: Onion Maggot -- Malheur County
(1) A control area is established within the boundaries of Malheur County for the protection of
the onion industry by the eradication or control of the insect pest known as the onion maggot.
This control area order is based on IPM principles first recognized and used by Malheur County
growers in 1957.
(2) The following methods of eradication and control are declared to be the proper methods used
in this control area order:
(a) All cull or waste onions in Malheur County shall be disposed of by a method approved by
this control order prior to March 15 each year; for onions sorted after that date until July 1, the
resulting cull and waste onions shall be disposed of within one week after such sorting;
(b) Disposal of cull or waste onions shall be accomplished only as set forth below:
(A) Disposal by covering in a dump site approved by the Oregon Department of Environmental
Quality (DEQ). Culls and onion debris shall be dumped and covered by at least 12 inches of
onion-free soil by March 15 each year;
(B) Disposal by animal feeding. Culls and onion debris shall be completely removed from
feeding areas by March 15 and buried under 12 inches of onion-free soil. Onions tramped into
the soil so they cannot be removed shall be plowed to a depth of 12 inches;
(C) Disposal by chopping or shredding. Chopped or shredded onion debris that is incapable of
sprouting may be returned to the field at a tonnage rate no higher than the DEQ-approved rate of
80 tons per acre and plowed to a depth where no onion parts are exposed on the surface;
(D) Composting. All onion debris shall be incorporated into the compost bed and completely
covered by 12 inches of onion-free soil;
(E) Disposal of residue in onion producing fields. Commercial onion fields where sort out bulbs
are left at harvest shall be disked to destroy the bulbs and shall be plowed to a depth of at least
12 inches by March 15 each year. Seed bulbs shall be disposed of in the same manner following
the last harvest. The owner of the field is ultimately responsible for compliance with this rule;
(F) If inclement weather prevents plowing, the culls will be treated with an EPA-labeled
insecticide currently listed in the PNW Insect Control Handbook at prescribed intervals until
proper disposal occurs.
Cull Onion Piles
Onion Treasure Valley - Idaho
onion maggot
Posted on: March 7, 2011 by Jerry Neufeld
Attached below is a pdf with information from the Idaho State Department of Agriculture about the disposal rules for the control of Onion Maggot.
Webcast in potato irrigation
Potato All Locations
Posted on: March 1, 2011 by Jeff Miller
A new webcast is available through the Focus on Potato website (www.plantmanagementnetwork.org/fop). While much of the content is only available through a paid subscription, new webcasts (such as the one described below) are available for viewing at no cost for a period of time. The following webcast is available for no charge through April 30. If you have any questions or feedback, please feel free to contact me (Jeff Miller, 531-5124 or jeff@millerresearch.com).
"Avoid Crop Water Stress, Produce Higher Yielding, Quality Potatoes through Latest Focus on Potato Webcast"
Careful irrigation is required to avoid crop water stress and produce high-yielding, high quality potatoes.
To help growers and consultants achieve this end, Focus on Potato, a crop science resource for growers and consultants in the potato industry, has published its latest webcast, titled “Early Season Irrigation Management of Potato.”
This 56-minute presentation, authored by Howard Neibling, Professor of Biological and Agricultural Engineering at the University of Idaho, explains a method of pre-season irrigation planning to evaluate the adequacy of irrigation system capacity under the viewer's specific climate and soil conditions for normal and unusually high water-use years.
And for marginal or inadequate systems, suggestions are given for pre-season equipment changes and water management strategies to produce a high yield and quality potato crop.
View this presentation at http://www.plantmanagementnetwork.org/edcenter/seminars/potato/Irrigation_EarlySeason/
Other presentations are available on the Focus on Potato website at www.plantmanagementnetwork.org/fop.
Focus on Potato is a publication of the Plant Management Network (www.plantmanagementnetwork.org), a nonprofit online publisher whose mission is to enhance the health, management, and production of agricultural and horticultural crops. It achieves this mission through its applied, science-based resources. PMN is jointly managed by the American Society of Agronomy, American Phytopathological Society, and Crop Science Society of America.
» http://www.plantmanagementnetwork.org/edcenter/seminars/potato/Irrigation_EarlySeason/
Stripe Rust Alert
Small Grains All Locations
Stripe Rust
Posted on: February 18, 2011 by Juliet Marshall
Thought we should all know what is transpiring to our west / northwest. See the stripe rust alert below from Dr. Xianming Chen, USDA-ARS, Pullman, WA. While this does not mean we WILL have an early and damaging amount of stripe rust this upcoming season, it does mean we will have increased risk of stripe rust developing. Conditions conducive for disease in wheat will also be conducive for disease in barley, although stripe rust in barley is rare.
We will be constantly monitoring the situation and will release additional alerts as needed. Check our website at
http://www.cals.uidaho.edu/scseidaho/
Juliet Marshall
Associate Professor, Cereals Pathology and Agronomy
Stripe Rust Starts Developing in the Pacific Northwest
Xianming Chen, February 18, 2011
Stripe rust of wheat has waked up much earlier this year than last year in the Pacific Northwest and may not have slept in the western Oregon and western Washington. Don Wysocki and Jim Towne found sporulating rust pustules in a wheat field near Pendleton in the northeastern Oregon on the 1st of this month. Last week, Mike Flowers and Chris Mundt reported that stripe rust was easily found (about 5% incidence) in wheat fields in the Willamette Valley of western Oregon.
Yesterday, I stopped by the Horse Heaven Hills in the south-central Washington and found sporulating rust pustules in several wheat fields, even in some fields where plants were still small (5 to 7 leaves without dead leaves) and stripe rust was not found in last November. Rust severity was up to 5% of incidence. The rust has survived the relatively mild winter with help with the widespread snow cover in the cold spell of the first week of last December.
Rust will develop fast when weather gets warm (night temperatures into the 40s F and day temperatures into the 50s F). Considering widespread infection before the winter, early application of fungicides will be better for fields planted with susceptible and moderate susceptible cultivars. Please check your fields when weather in your area reaches the above range and if you see stripe rust, consider spaying with fungicide even before herbicide application. If no rust is found but the planted cultivar is susceptible or moderately susceptible based on last year’s reaction, the field should be sprayed with fungicide when you spray herbicide. Please consider using full rate of fungicide at the time of herbicide application as the rust has already started so early and this rust season will likely be very long.
Spanish Pesticide Safety Training
Announcements Treasure Valley - Idaho
Posted on: February 1, 2011 by Jerry Neufeld
Attached is a pdf with information about an upcoming pesticide safety training conducted in Spanish.
Miller Research Potato Pest Management Workshop
Potato All Locations
Posted on: January 28, 2011 by Jeff Miller
Miller Research LLC will be holding its annual potato pest management research meeting on Tuesday, February 15 and Wednesday, February 16. The same program will be presented both days. The meetings will be held at the new Miller Research facility located near Acequia, ID (426 E 200 N). Presentations will discuss chemical and cultural practices to manage diseases and nematode pests.
There is no cost to attend this meeting. A total of 3 CCA (pest management) and 3 ISDA recertification credits are available. If you have question or concerns you would like addressed please submit them by e-mail. If you know of other interested parties please forward this notice.
The meetings will begin at 8:30 and conclude at noon.
8:30 White mold control
9:00 Managing early blight and brown leaf spot
9:30 Late blight expectations for 2011
10:00 Break
10:15 Managing nematodes in potato (Dr. Saad Hafez)
11:00 Fungicides for pink rot management
11:30 Rhizoctonia and Fusarium dry rot management
Weed Short Course (Pesticide Credits)
Announcements All Locations
Posted on: January 26, 2011 by Steve Norberg
Weed Control Short Course
Feb. 15-16, 2011 (Applied for 12 ID, OR and WA credits, CCA credits also applied for)
Four Rivers Cultural Center
$65 per person until Feb. 7th
$75 per person after Feb. 7th
Lunch included in the price on the 15th.
For more information see attached file or call the Extension Office at 541-881-1417
Steve Norberg, Field Crops and Watershed Management
Webinar: Optimizing Fertility Management in Malting Barley a
Small Grains All Locations
Nitrogen Management
Posted on: January 25, 2011 by Juliet Marshall
Don’t Miss our next Idaho Grain Webinar… scheduled this Thursday, January 27, 2011 at 8:30 a.m. MST on Optimizing Fertility Management in Malting Barley and Hard Red Spring Wheat, presented by Dr. Brad Brown, UI Parma R&E Center.
To join this webinar from your own computer, please log onto: https://connect.cals.uidaho.edu/barley/
Kelly L Olson, Administrator
Idaho Barley Commission
208-334-2090
Fax: 208-334-2335
kolson@idahobarley.org
No-tillage and Strip Tillage Meeting
All Crops All Locations
Posted on: January 25, 2011 by Steve Norberg
2nd Annual Strip Tillage and No-till Drilling Conference
February 10, 2011 at 9:00 AM, Four Rivers Cultural Center, Ontario, OR
Please RSVP by February 4 at noon by calling the Malheur Extension Office at 541-881-1417
Put on by Oregon State University
Agenda
9:00 AM Welcome - Steve Norberg, OSU, Field Crops and Watershed Mgt.
9:05 AM Why Consider Strip Tillage or No-till Drilling? - Steve Norberg, OSU
9:30 AM How to Manage Soil Temperature in High Residue Conditions – Andy McGuire,
Washington State University Extension
10:00 AM Strip Till and No-till Machinery and Lesson’s Learned– Steve Norberg
10:30 AM Break
10:45 AM Machinery for Planting in High Residue Conditions-Andy McGuire
11:30 AM Farmer Experience with Strip Tillage – Kenneth Jensen
11:50 AM Use of Oregon's Business Energy Tax Credit for No-till Drills- Mark Wettstein -
producer
12:00 PM Lunch (Courtesy of Sponsors)
12:45PM Setting of No-till drills – Steve Norberg and others
1:00 PM Farmer Experiences with No-till Drills - Jeremy Chamberlain, Doug Stipe, Gary
Westcott and John Fabricius
2:00 PM Farmer Experiences with Strip Tillage –Bill Romans, Ron Smith and Rob
Wagstaff
3:00 PM Adjourn
