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powdery mildew in sugarbeets
Sugarbeets Treasure Valley - Idaho
Posted on: July 12, 2004 by Jerry Neufeld
Powdery mildew has been positively identified by Amalgamated Sugar Company Representatives in sugarbeet fields in the western Treasure Valley, Wilder and Star areas. In addition, black bean aphids and loopers have been found in several sugarbeet fields around the county. An insecticide for aphids and loopers can be tank mixed with a fungicide to treat both pests at the same time.
Laredo is not available this year to treat powdery mildew in sugarbeets. U of Idaho Sugarbeet Specialist Dr. John Gallian is recommending that you do not use chemicals with the same mode of action more than once a year on the same sugarbeet fields. In addition, Dr. Gallian is recommending the addition of 5 pounds of sulfur to each treatment in order to fight resistance. Contact your AMSCO field representative if you have any questions.
Early blight
Potato Eastern Idaho
Posted on: July 8, 2004 by Jeff Miller
We have reached the threshold (P-Days) for early blight in the American Falls-Aberdeen area. Now is a good time to apply a fungicide with good activity on early blight. Please contact Jeff Miller at 397-4181 if you have any questions.
Malheur Exp. Station Field Day July 14
All Crops Treasure Valley - Oregon
Posted on: July 2, 2004 by Clint Shock
The Malheur Experiment Station Field Day July 14 will feature crop production tours in the morning, a presentation on black flies (buffalo gnats) during the lunch hour, and in the afternoon a specialty presentation on high efficiency motors for single phase power lines and a tour of drip-irrigated onion fields. For more details visit our events web page at http://www.cropinfo.net/events.htm.
Reserve your lunch with Janet Jones, (541) 889-2174.
Malheur Exp. Station Field, July 14
Announcements Treasure Valley - Oregon
Posted on: July 2, 2004 by Clint Shock
The Malheur Experiment Station Field Day July 14 will feature crop production tours in the morning, a presentation on black flies (bufalo gnats) during the lunch hour, and in the afternoon a specialty presentation on high efficiency motors for single phase power lines and a tour of drip-irrigated onion fields. For more details visit our events web page at http://www.cropinfo.net/events.htm
Reserve your lunch with Janet Jones, (541) 889-2174.
Section 18 approval for Success on onions
Onion Treasure Valley - Oregon
Posted on: July 1, 2004 by Lynn Jensen
Success has recieved approval for use on onions for thrips control in Oregon (Idaho approval is expected) as a section 18 label.
Early blight
Potato Magic Valley
Posted on: June 29, 2004 by Jeff Miller
The P-Day threshold for early blight has been reached in the Twin Falls area. As of this week, 300 P-days have accumulated using May 10 as an estimated general emergence date. The application threshold has not been reached yet in the eastern Magic Valley (Rupert-Burley).
green peach aphids
Potato Treasure Valley - Idaho
Posted on: June 29, 2004 by Jerry Neufeld
Mike Thornton, Extension Specialist and Superintendent at the U of I Parma R and E Center is reporting that colonizing green peach aphids have been found in the Treasure Valley. Carefully scout fields and apply appropriate insecticides as necessary.
green peach aphids
Potato Magic Valley
Posted on: June 25, 2004 by Jerry Neufeld
Nora Olsen, Extension Specialist with the U of I at the Twin Falls R and E Center is reporting that colonizing green peach aphids have been identified in the Magic Valley. Careully scout fields and apply appropriate insecticides as necessary.
powdery mildew in sugarbeets
Sugarbeets Treasure Valley - Idaho
Posted on: June 25, 2004 by Jerry Neufeld
Amalgamated Sugar Company Field Representatives are saying that now is the time to be considering your treatment plan for powdery mildew in sugarbeets. While mildew has not yet been found in the Treasure Valley, the modes of action of the mildew chemistries work best if treatments are applied before mildew is even found in the field. Dennis Searle, AMSCO Agronomist is recommending mildew applications in the west end of the Treasure Valley by July 5 and applications in the east end of the Treasure Valley no later than July 10. Dennis says that treatments should be made by these dates regardless of whether or not your fields are surface or sprinkler irrigated. Also, loopers and other worms are being found in sugarbeet fields. Be on the look out for these pests. In many cases an insecticide can be tank mixed with your mildew treatment. CONTACT YOUR FIELD REPRESENTATIVE FROM AMSCO IF YOU HAVE ANY QUESTIONS.
Early blight
Potato Treasure Valley - Idaho
Posted on: June 21, 2004 by Jeff Miller
The forecast used to predict early blight (P-Days) indicates that the threshold for treatment has been reached in the Treasure Valley. An application of a higher quality early blight material (strobilurin) is warranted if early blight is a concern.
Late blight
Potato Eastern Idaho
Posted on: June 21, 2004 by Jeff Miller
The weather in southerin Idaho has been extremely favorable for late blight. Disease forecasting models indicate that 2004 may be a late blight year. Apply protectant fungicides just prior to row closure and again 7 days later. After that, adopting a wait and see approach may be valid. Scout wet field areas weekly after row closure. If you have any questions, please contact Jeff Miller at 397-4181.
western corn rootworm and wireworms
Corn Treasure Valley - Idaho
Posted on: June 8, 2004 by Jerry Neufeld
In the past few days I received a couple of calls about larvae feeding on corn roots and stems. In both cases the fields were a rotation of corn following corn. In one case the field had uncomposted manure applied to it. Be on the lookout for western corn rootworm larvae and/or wireworms in your cornfields, especially if you have fields in continuous corn, fields high in organic matter or corn following pasture or alfalfa.
Colorado Potato Beetle
Potato Magic Valley
Posted on: June 4, 2004 by Terry Helms
Colorado Potato Beetle adults have been abundant in fields South of Burley
for about a week. No egg activity as of yet.
Colorado Potato Beetle
Potato Treasure Valley - Idaho
Posted on: June 3, 2004 by Jerry Neufeld
Adult Colorado Potato Beetles have been laying eggs for a while now. Growers need to watch fields closely for the egg hatch as the first generation larvae can cause a lot of defoliation damage. Several of the control options also need to be timed to coincide with the appearance of the larvae. Thanks to Mike Thornton at the U of I Parma Research and Extension Center for this information.
Parma Research and Extension Field Day
Announcements Treasure Valley - Idaho
Posted on: June 3, 2004 by Jerry Neufeld
The U of Idaho Parma Research and Extension Center is hosting an Open House and Field Day on Tuesday June 29, 2004. Registration begins at 8:00 am. The program will conclude by 1:30 p.m. Lunch is being provided at no cost to participants by the local agriculture industry. Recertification credits may be offered. Call 722-6701 if you have questions.
Pesticide Disposal
Announcements Treasure Valley - Idaho
Posted on: May 14, 2004 by Jerry Neufeld
IDAHO STATE DEPARTMENT OF AGRICULTURE’S SPRING PESTICIDE DISPOSAL PROGRAM
Collections scheduled for northern and southwest Idaho are safe, legal and free
BOISE, Idaho – Agricultural producers, dealers, applicators and homeowners who are storing unusable pesticides will have a safe, legal and free opportunity to dispose of them this May when the Idaho State Department of Agriculture conducts collections in Bonners Ferry, Coeur d’Alene, Lewiston, Weiser and Caldwell, Idaho.
Participation is free for the first 1,000 pounds of unusable pesticides per participant. Anyone with unusable herbicides, insecticides, fungicides and rodenticides should bring them to the closest collection site between the hours of 9:00 a.m. and 1:00 p.m. on the date and location listed below (Sorry no fertilizer, micronutrients, paint, solvents, or equipment or motor oil can be accepted):
May 20, Weiser, IDOT Yard
May 21, Caldwell, Canyon County Fairgrounds
“These collections provide a mechanism for disposing of chemicals in an environmentally sound manner. The unusable pesticides collected in May will be incinerated or otherwise destroyed,” said Victor Mason II, manager of the department’s pesticide disposal and container recycling programs.
Since 1993, the Idaho State Department of Agriculture has disposed of more than half million pounds of unusable chemicals. Pesticides become unusable for many reasons, including loss of potency, exposure to temperature extremes, cancellation or suspension by state or federal authorities, or growers’ decisions to change their cropping rotations or practices.
Assistance in the identification of unknown pesticides and other information about the collections is available at http://www.agri.state.id.us/agresource/pdp.htm.
For further information contact Victor Mason II at 465-8442.
Mint
Mint Treasure Valley - Idaho
Posted on: May 10, 2004 by Jerry Neufeld
Producers Supply Coop field representatives are reporting that powdery mildew has been found in mint fields south of Nampa and in the dry lake area.
Western Cherry Fruit Fly Emergence Dates
Tree Fruits Treasure Valley - Idaho
Posted on: May 5, 2004 by Tim Davis
As of today May 5th we are currently at 730 degree days for the Western Cherry Fruit Fly in the Caldwell area and the model is predicting accumulations of 1060dd on May 22nd. In the Emmett are we are currently at 700dd and the model is predecting accumulations of 1060dd on May 25th. In the Payette area we are currently at 760dd and the model is predicting 1060dd on May 21st. A cover spray should be applied on or before 1060dd to target mature, egg-laying flies.
Codling Moth Larval Emergence Date
Tree Fruits Treasure Valley - Idaho
Posted on: May 5, 2004 by Tim Davis
As of today May 5th we are currently any where from 150-185 degree-days for the Codling Moth. This range depends on when your biofix was set and the area you are in. The model is predicting larval emergence (250dd) any where from May 12-15 again depending on you local temperature and biofix date. The Fruitland/Payette area is on the earlier end of the prediction as it has been a bit warmer here this year. The Caldwell area is on the later end of this prediction. Plan your cover sprays accordingly and DONT BE LATE!
soybean rust in beans
Dry Beans Treasure Valley - Idaho
Posted on: May 5, 2004 by Jerry Neufeld
Following is information provided by Melodie Putnam of the Oregon State University Plant Clinic.
Soybean rust is an exotic pathogen that is not established in the continental U.S. It has recently moved north of the equator, and is currently in Brazil, Argentina and Paraguay. Like other rust diseases (such as wheat rusts), this disease can move long distances in air currents, and is expected to reach the U.S. soon.
Why should we in the West care about soybean rust? Because it also goes to yellow sweet clover (Melilotus officinalis), vetch (Vicia dasycarpa), lupine (Lupinus hirsutus), green and kidney bean (Phaseolus vulgaris), lima and butter bean (Phaseolus lunatus) and cowpea or backeyed pea (Vigna unguiculata). Soybean rust can cause severe defoliation and loss of yield in susceptible crops. Therefore, early detection is essential.
Soybean rust is a Federal quarantine status pathogen, but there are no plans for eradication of infected crops. Instead, it has been shown that once an infestation of soybean rust is detected, if early enough, effective control can be obtained with carefully timed fungicide applications. Detection early in the season with properly timed application of fungicides appears to present the best alternative for controlling soybean rust in the United States. It is particularly important to limit the spread of this disease, due to its destructive potential.
Please be alert to the possibility of this rust moving into bean, lupin and other susceptible crops. For more information on soybean rust, including a list of hosts and photographs of symptoms, see http://www.aphis.usda.gov/ppq/ep/soybean_rust/.
Oregon growers should contact the OSU Plant Clinic for information on how to proceed if soybean rust is suspected in their crops. Please contact:
Melodie Putnam
OSU Plant Clinic
1089 Cordley Hall
Corvallis, OR 97331-2903
541-737-3472
Growers in other states should contact their own university or state departments of agriculture diagnostic laboratories.
Lygus bug
Alfalfa Seed Treasure Valley - Idaho
Posted on: May 5, 2004 by Jerry Neufeld
According to the lygus bug degree day model we should be seeing peak numbers of 1st and 2nd instar lygus nymphs from the 1st generation lygus hatch right now. We are a full 10 -14 growing degree days ahead of average this year depending on your location. The 1st generation lygus hatch usually peaks in mid-May. Now is a good time to scout your fields and determine your treatment needs. With the continued heat insect growth will be rapidly proceeding. Check your fields at least once a week if possible, more if you are approaching the threshold of 4 lygus per sweep. Small instars (1, 2, & 3) are easier to control than large instars (4 & 5) or adults. Bigeyed bugs, damsel bugs and minute pirate bugs are also out early so watch for these beneficial insects. If the population of bigeyed bugs plus damsel bugs is twice the number of lygus bugs, and your lygus numbers are not increasing, you may not need to treat.
cereal leaf beetle
Small Grains Treasure Valley - Idaho
Posted on: April 29, 2004 by Jerry Neufeld
Cereal leaf beetle larvae are beginning to hatch from eggs laid in small grain fields in the Parma area. You will want to scout your fields for the larvae since they are now widespread across the Treasure Valley.
onion bulb mite
Onion Treasure Valley - Idaho
Posted on: April 21, 2004 by Jerry Neufeld
Mike Thornton, Superintendent of the U of Idaho Parma Research and Extension Center, is reporting that onion bulb mites are feeding on onion seedlings in Parma area onion fields. Mite pressure is severe enough to damage stands.
Onion Maggot
Onion Treasure Valley - Oregon
Posted on: April 21, 2004 by Clint Shock
Onion maggot has been identified north of Vale, OR in seedling onion fields.
