Crop Alerts
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Alfalfa Weevil Infesting Hay Fields
Alfalfa All Locations
Posted on: May 15, 2002 by Ben Simko
Alfalfa weevil infestations are causing varying degrees of damage to many hay fields in Malheur County. Tim Kurth, Farmers Supply Coop has reported treatable levels of alfalfa weevil in several fields in the Vale area and assisted growers on management decisions. Hay growers are advised to check their fields now to assess weevil infestation levels and decide if treatment is necessary. Weather conditions, plant vigor, irrigation schedules, cutting date, previous history of weevils in the fields are all important factors to determine if treatment is justified. See the Alfalfa Weevil Reference page (click on More information….) for IPM resources.
sugarbeet root maggot
Sugarbeets All Locations
Posted on: May 14, 2002 by Jerry Neufeld
According to the sugarbeet root maggot growing degree day model developed by Dr. Ed Bechinski from the U of Idaho, we have accumulated 360 growing degree days as of May 13, 2002. What this means is that any day now overwintering root maggot pupa will begin to emerge as adults and begin flying. In about 7-10 days maggots will begin feeding on sugarbeet roots. Terry Cane from The Amalgamated Sugar Company has also confirmed the siting of adult root maggot flies. For treatment options see the ?Sugarbeet Root Maggot? reference page.
Lygus Bug - First Hatch
Alfalfa Seed All Locations
Posted on: May 14, 2002 by Ben Simko
Lygus bug degree-day model, through May 13, indicates Ontario and Parma areas have accumulated 225 and 228 degree-day units respectively. Peak first hatch (1st & 2nd instars) is predicted at 275 degree-days and the current forecast indicates peak hatch to occur on or near May 19. Due to cooler weather experienced this spring the 2002 hatch in the Ontario area will be 6 days later than last year and in the Parma area 11 days later than 2001. Small nymphs are beginning to appear in fields in the Adrian, Big Bend, Nyssa, and Ontario areas. Traces of floral buds are starting to also show in established fields. View Lygus Reference Page to find links to degree day calculators, DD maps, and to get daily Lygus heat unit updates for Ontario, OR, Parma, Caldwell, and Boise, ID seed production areas.
Cereal Leaf Beetle
Small Grains none
Posted on: May 14, 2002 by Ben Simko
Cereal Leaf Beetle (CLB) larval hatch is beginning in spring grains, including oats, barley and wheat in the Big Bend - Adrian areas. Adults, eggs and a few early instar larvae were observed, particularly in preferred hosts of oats, oat nurse crop in new alfalfa stands and spring barley. Fieldmen and growers are advised to monitor populations of CLB and the larval hatch to assess potential economic damage to their crop later this season. See CLB Reference Page for more information on identification, action thresholds and crop protection chemicals. USDA APHIS staff are looking for a field in Oregon for potential biocontrol release site of beneficial CLB parasites. For more information contact the Malheur County extension office at 541.881.1417.
Mormon Crickets
Rangeland none
Posted on: May 13, 2002 by Jerry Neufeld
Jim Hipwell of BioFlora Northwest is reporting large bands of Mormon Crickets off Highway 78 southwest of the Murphy Flats area in Owyhee County.
wireworms
Corn All Locations
Posted on: May 10, 2002 by Jerry Neufeld
Wireworms are damaging sweet corn seed fields in the Melba area. According to the literature, corns fields following pasture or alfalfa are most prone to wireworms. Information provided by Terry Drye.
cereal leaf beetle
Small Grains none
Posted on: May 9, 2002 by Jerry Neufeld
Brad Brown, Crop Management Specialist at the UI Parma Research and Extension Center reports there are many adult cereal leaf beetles in spring barley at Parma. He is also finding a few eggs. He has not yet seen any larvae.
Coddling Moth
Apple All Locations
Posted on: May 6, 2002 by Tim Davis
The biofix date for the Coddling Moth has been set for April 29. Using this date on the degree-day calculator made available on the Oregon State Universities website the first hatch will not occur until May 25. This date is later than previous years as we have had a cool spring. Another alert will be posted 7-10 days before the predicted hatch.
Cereal Leaf Beetle
Small Grains none
Posted on: April 24, 2002 by Ben Simko
Cereal Leaf Beetle (CLB) adults are beginning to infest spring grains, including oats, barley and wheat in the Nyssa - Adrian areas. Adults and eggs were observed, particularly in preferred hosts of oats and spring barley. Fieldmen and growers are advised to monitor populations of CLB and the larval hatch to assess potential economic damage to their crop later this season. See CLB Reference Page for more information on identification, action thresholds and crop protection chemicals. USDA APHIS staff are looking for a field in Oregon for potential biocontrol release site of beneficial CLB parasites. For more information contact the Malheur County extension office at 541.881.1417.
cereal leaf beetle
Small Grains All Locations
Posted on: April 23, 2002 by Jerry Neufeld
Cereal leaf beetle larvae have been found in winter wheat north of the interstate near Meridian. Treat when there are three larvae or eggs per plant up to the boot stage. Although CLB is widespread in Canyon County, there are hot spots south of Nampa and near Kuna. Look for the CLB to move into spring grains in the near future. Information provided by Duane Yamamoto and Producers Supply Coop.
Idaho and Oregon Alfalfa Seed Growers Winter Meeting
Announcements All Locations
Posted on: January 18, 2002 by Ben Simko
The 2002 Idaho/Oregon Alfalfa Seed Growers winter meeting will be held Wednesday, January 23 at the Nampa Civic Center. The meeting starts at 8:45 a.m. and will include topics covering pest management research, drip irrigation trials, market analysis, and GMO alfalfa. Growers and allied industry are welcome to attend but RSVP is required by January 18. Call 208-888-0988 or
541-881-1417 to RSVP or for more information.
Idaho & Oregon Alfalfa Seed Growers Winter Meeting January 2
Announcements All Locations
Posted on: January 16, 2002 by Ben Simko
The 2002 Idaho/Oregon Alfalfa Seed Growers winter meeting will be held Wednesday, January 23 at the Nampa Civic Center. The meeting starts at 8:45 a.m. and will include topics covering pest management research, drip irrigation trials, market analysis, and GMO alfalfa. Growers and allied industry are welcome to attend but RSVP is required by January 18. Call 208-888-0988 or 541-881-1417 to RSVP or for more information.
Onion Micromanagement Workshop
Announcements none
Posted on: December 7, 2001 by Jerry Neufeld
Western Laboratories from Parma, ID is sponsoring an Onion Micromanagement workshop on December 18, 2001 from 7:30 a.m. to 5:30 p.m. The program will be at the Four Rivers Cultural Center in Ontario, OR. Cost is $50.00 per person. Eight CCA and 2 pesticide credits are available. Please call 1.800.658.3858 for more information.
Irrigation Technology
Announcements none
Posted on: December 6, 2001 by Jerry Neufeld
A program entitled "Future of Irrigation, Using Innovative Technologies to Manage Water" will be held at the Nampa Civic Center on December, 19 from 8:30 am to 4:00 pm. Sponsors are the Idaho Department of Water Resources and the University of Idaho. The cost is $30 before 12/13 and $40 after 12/13. Call Jerry Neufeld at 459.6003 to get a registration form.
pesticide recertification
Announcements none
Posted on: December 6, 2001 by Jerry Neufeld
A pesticide recertification class will be offered at the Canyon County Cooperative Extension office on December 21, from 9:00 am to 12:00 pm. The class has been approved for three license credits. Subjects taught will be 1) Field Posting 2) Record Keeping, and 3) Pesticide Labels and Safety. The Extension office is located at 501 Main in Caldwell. Please contact Jerry Neufeld at 459.6003 if you have questions.
Outback Steakhouse Certificate Winners
Announcements All Locations
Posted on: November 26, 2001 by Jerry Neufeld
We would like to send our sincere thanks to all of you that participated in the evaluation survey for the first year of TVPestAlert.net operations. We received some good information and will do our best to address the issues identified so we can make this website more useful to you.
The winners of the two $50 gift certificates to the Outback Steakhouse are:
Dan Silveria; Farmer from Caldwell, ID and Mike Huff; Fieldman from Dairyland Seed Co. in Homedale, ID.
Please remember to submit meeting announcement information to us and we will post it on the website over the winter.
Thanks again,
Fruit Field Day
Announcements All Locations
Posted on: August 29, 2001 by Jerry Neufeld
The University of Idaho is sponsoring the annual Fruit Field Day at the Parma R and E Center on Thursday, September 6, 2001 from 9 a.m. to noon. Commercial fruit growers, small-acreage producers, home gardeners and interested members of the public are all welcome. The tour will begin on the lawn of the main office.
Along with taste-testing, participants will learn about fruit-related research and extension trials being conducted at the center. In addition to variety trials, these experiments focus on orchard and vineyard establishment, peach and nectarine training and the effects of the potential growth regulator Messenger in apples.
For more information, contact UI pomologist/viticulturist Essie Fallahi or extension horticulturist Michael Colt at 208/722-6701 in Parma.
Black Bean Aphid in Sugarbeets
Sugarbeets All Locations
Posted on: August 17, 2001 by Jerry Neufeld
Black Bean Aphids have been found in sugarbeet fields in the Star and Eagle areas. If you find these aphids in your sugarbeet fields, contact your field representative from the Amalgamated Sugar Company about your treatment options.
powdery mildew in sugarbeets
Sugarbeets All Locations
Posted on: August 16, 2001 by Jerry Neufeld
Amalgamated Sugar Company is reporting powdery mildew is being found in sugarbeet fields in a widespread area around Eagle, Notus, Wilder and Emmett.
Drought Symoisium
Announcements none
Posted on: August 6, 2001 by Jerry Neufeld
Senator Larry Craig is hosting a drought symposium on August 17, 2001 starting at 3:00 p.m. at the U of I Research and Extension Center Conference Room located at 16952 South 10th Avenue in Caldwell. The Senator has asked representatives from the Farm Service Agency, Natural Resources Conservation Service, Forest Service, Bureau of Land Management, Rural Development, and the Small Business Administration to be on hand to inform people of the programs and resources they have to help with this crisis. Please inform your neighbors about this event. If you have questions contact Nate Helm at 208.342.7985.
aphid flyer
Potato All Locations
Posted on: July 27, 2001 by Jerry Neufeld
A new aphid flyer with information about green peach aphid is posted on the southern Idaho Entomology page at: http://www.uidaho.edu/so-id/entomology/
Virus disease in onions
Onion All Locations
Posted on: July 26, 2001 by Lynn Jensen, Brad Geary, Vincent Bijman
Iris yellow spot virus has been positively identified on onions in several locations of the Treasure Valley. These sites include the Oregon Slope area and the Nyssa area. In addition, plants with similar symptoms have been seen in the Homedale/Marsing and Parma areas.
Symptoms include straw colored chlorotic ring spots on leaves, followed by deterioration of the leaf. In Israel the disease has led to a rapid die of leaf tissue, causing the field to look like a straw field. Their name for the disease is "straw bleaching". The disease is known to be transmitted by onion thrips, but thus far Western Flower thrips have not been associated with the disease.
The disease has probably been here for several years, but not identifyed until now. A number fields died eary last year, probably due to the virus. It has been identifyed in both bulb and seed crops.
Fungicides are not effective. Probably most of the plant infection has already occured. More information will be sent out as it becomes available.
Powdery Mildew in Hops
Hops All Locations
Posted on: July 23, 2001 by Jerry Neufeld
Hop Powdery mildew continues to spread to hop fields in southwestern Idaho. Current weather conditions in this area continue to favor the growth, reproduction, and spread of hop powdery mildew. In addition, most of the hop acres in Canyon County are planted to powdery mildew-susceptible varieties. Fields of Zeus hops are highly susceptible and should be treated prophylactically with a protectant fungicide. As more acres of Zeus become infected, Galena, Willamette and Chinook hops may need to be treated as well. It is imperative to check hop yards at least once per week to determine the level of powdery mildew and to assess the effectiveness of treatments. Information provided by Jim Barbour from the U of Idaho, Parma Research and Extension Center.
Corn Earworm
Corn All Locations
Posted on: July 23, 2001 by Jerry Neufeld
The growing degree day (gdd) totals for corn earworm through July 25, 2001 are:
Caldwell-1360
Nampa-1359
Parma-1634
The next generation of corn earworm will lay eggs between 1450 and 1650 gdd. The OSU model predicts Caldwell and Nampa will reach 1450 gdd on July 30.
numerous green peach aphids
Potato All Locations
Posted on: July 20, 2001 by Brad Geary
Numerous green peach aphids have been found in potato fields near Parma, Middleton, Marsing and Caldwell. We are counting 40-50 aphids/100 leaves in some fields. The Mountain Home, Glenns Ferry area fields do not appear to have the high populations we are experiencing west of Boise. University of Idaho potato scouts have counted 1-2 aphids/100 leaves in the Mountain Home, Glenns Ferry area. We hope that aphid control measures have been implemented in your potato management programs.
