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Sugarbeet Root Maggot
Sugarbeets Treasure Valley - Idaho
Posted on: May 2, 2005 by Jerry Neufeld
According to a representative from Amalgamated Sugar Company, growing degree day models indicate that adult sugarbeet root maggot flies will begin their spring emergence and begin flying in the very near future. Adult flies will lay eggs near sugarbeet plants. After the larvae hatch they will begin feeding on the young sugarbeets. AMSCO representatives have not seen any adult flies yet, but warn they will be flying any day now. Look for these pests to appear in the western end of the Treasure Valley first. If you haven’t applied a treatment for sugarbeet root maggot, now is the time to do so. Consult your crop advisor or field representative from AMSCO for treatment options.
Lygus
Alfalfa Seed Treasure Valley - Idaho
Posted on: April 25, 2005 by Jerry Neufeld
Cool weather during March and April has slowed degree day accumulations to something approaching normal. Peak numbers of 1st and 2nd instar lygus are now predicted to occur during the 3rd week of May (May 17 as of this morning). You can keep track of degree day accumulations using the OSU web site (http://ippc2.orst.edu/cgi-bin/ddmodel.pl?spp=lyg). Use degree day accumulations as an indicator of when to start lygus scouting activities. The early season lygus threshold is 4-5 lygus nymphs or adults per 180 degree sweep.
Onion Bulb Mite
Onion Treasure Valley - Idaho
Posted on: April 22, 2005 by Jerry Neufeld
Charlie Robinson with Western Farm Service in Parma is reporting that onion bulb mites have been found in onion fields southwest of Caldwell. In one case there is an estimated 30% stand loss. The mites were positively identified by U of I Extension Pathologist Krishna Mohan. Dr. Mohan said that with the wet/cool weather we have been having, a stand loss such as that caused by the mites can be confused with ”damping off.” He warns that if you are experiencing onion stand loss, it may not be “damping off” it may be bulb mites. Positive identification of mites needs to be made by using a microscope to examine either undecayed vegetation from the field or the onions. Fields that have a history of bulb mite problems, or onion fields with undecayed vegetative matter are more prone to these pests. No treatment thresholds exist and there are no in-season treatments available. Preventative soil fumigation treatments can help to control this pest.
Onion Bulb Mite
All Crops Treasure Valley - Idaho
Posted on: April 22, 2005 by Jerry Neufeld
Charlie Robinson with Western Farm Service in Parma is reporting that onion bulb mites have been found in onion fields southwest of Caldwell. In one case there is an estimated 30% stand loss. The mites were positively identified by U of I Extension Pathologist Krishna Mohan. Dr. Mohan said that a stand loss such as that caused by the mites can be confused with ”damping off.” He warns that if you are experiencing onion stand loss, it may not be “damping off” it may be bulb mites. Positive identification of mites needs to be made by using a microscope to examine either undecayed vegetation from the field or the onions. Fields that have a history of bulb mite problems, or onion fields with undecayed vegetative matter are more prone to these pests. No treatment thresholds exist and there are no in-season treatments available. Preventative soil fumigation treatments can help to control this pest.
Cutworms in Vineyards
All Crops Treasure Valley - Idaho
Posted on: April 21, 2005 by Jerry Neufeld
Charlie Robinson with Western Farm Service in Parma is reporting that cutworms have been found in established vineyards in the Sunnyslope area. The worms are found in cracks in the soil or under debris during the day, and climb the vines to feed on developing buds and shoots at night.
Onion Bulb Mites
All Crops Treasure Valley - Idaho
Posted on: April 21, 2005 by Jerry Neufeld
Charlie Robinson with Western Farm Service in Parma is reporting that onion bulb mites have been found in onion fields southwest of Caldwell. In one case there is an estimated 30% stand loss. The mites were positively identified by U of I Extension Pathologist Krishna Mohan. Dr. Mohan said that ”damping off” has been a problem in onions this spring. However, he warned if you are experiencing onion stand loss, it may not be “damping off” it may be bulb mites. Positive identification of mites needs to be made by using a microscope to examine either undecayed vegetation from the field or the onions. Fields that have a history of bulb mite problems, or onion fields with undecayed vegetative matter are more prone to these pests. No treatment thresholds exist and there are no in-season treatments available. Preventative soil fumigation treatments can help to control this pest.
Onion Bulb Mite
All Crops Treasure Valley - Idaho
Posted on: April 21, 2005 by Jerry Neufeld
Charlie Robinson with Western Farm Service in Parma is reporting that onion bulb mites have been found in onion fields southwest of Caldwell. In one case there is an estimated 30% stand loss. The mites were positively identified by U of I Extension Pathologist Krishna Mohan. Dr. Mohan said that ”damping off” has been a problem in onions this spring. However, he warned if you are experiencing onion stand loss, it may not be “damping off” it may be bulb mites. Positive identification needs to be made by using a microscope to examine either undecayed vegetation from the field or the onions. Fields that have a history of bulb mite problems, or onion fields with undecayed vegetative matter are more prone to these pests. No treatment thresholds exist and there are no in-season treatments available. Preventative soil fumigation treatments can help to control this pest.
Onion Bulb Mite
All Crops Magic Valley
Posted on: April 21, 2005 by Jerry Neufeld
Charlie Robinson with Western Farm Service in Parma is reporting that onion bulb mites have been found in onion fields southwest of Caldwell. In one case there is an estimated 30% stand loss. The mites were positively identified by U of I Extension Pathologist Krishna Mohan. Dr. Mohan said that ”damping off” has been a problem in onions this spring. However, he warned if you are experiencing onion stand loss, it may not be “damping off” it may be bulb mites. Positive identification needs to be made by using a microscope to examine either undecayed vegetation from the field or the onions. Fields that have a history of bulb mite problems, or onion fields with undecayed vegetative matter are more prone to these pests. No treatment thresholds exist and there are no in-season treatments available. Preventative soil fumigation treatments can help to control this pest.
Onion Bulb Mites
All Crops Treasure Valley - Idaho
Posted on: April 20, 2005 by Jerry Neufeld
Charlie Robinson with Western Farm Service in Parma is reporting that onion bulb mites have been found in onion fields southwest of Caldwell. In one case there is an estimated 30% stand loss. The mites were positively identified by U of I Extension Pathologist Krishna Mohan. Krishna said that ”damping off” has been a problem in onions this spring. However, he warned if you are experiencing onion stand loss, it may not be “damping off” it may be bulb mites. Positive identification needs to be made by using a microscope to examine either undecayed vegetation from the field or the onions. Fields that have a history of bulb mite problems, or onion fields with undecayed vegetative matter are more prone to these pests. No treatment thresholds exist and there are no in-season treatments available. Preventative soil fumigation treatments can help to control this pest.
Cereal Leaf Beetle
Small Grains Treasure Valley - Idaho
Posted on: April 19, 2005 by Jerry Neufeld
Brad Brown, Cereals Specalist with the U of Idaho at the Parma Research and Extension Center is reporting he has found cereal leaf beetle eggs in spring planted grains. He has also seen quite a few adult beetles in flight. Eggs will hatch in 4- 23 days depending on the temperature and then larvae will begin feeding on the leaves.
Pesticide Disposal Program
Announcements Treasure Valley - Idaho
Posted on: April 14, 2005 by Jerry Neufeld
IDAHO STATE DEPARTMENT OF AGRICULTURE’S PESTICIDE DISPOSAL PROGRAM
IT’S FREE AND EASY!
JUST BRING YOUR UNUSABLE PESTICIDES TO ONE OF THESE SITES
THE FIRST 1,000 POUNDS ARE FREE
CALDWELL, MAY 16, 2005, CANYON COUNTY FAIRGROUNDS
111 22ND Ave. South in Caldwell, ID 83605
WEISER, MAY 17, 2005, IDAHO DEPT. OF TRANSPORTATION YARD
550 Indian Head Rd in Weiser, ID 83672
Please check with the Idaho State Department of Agriculture (ISDA) office nearest you or with the Boise office to confirm dates, or for additional information about these collections.
All collections will run from 9:00 a.m. to 1:00 p.m. each day.
We can only collect pesticides – no fertilizer, paints or oils can be accepted.
Nampa office- Victor Mason II at (208) 465-8442; Bob Hays (208) 442-2803; Fred Rios (208) 442-2816; Dave Chase (208) 465-8482; or Luis Urias (208) 465-8478
Boise office Cathy Parsons (208) 332-8605
Cereal Leaf Beetle
Small Grains Treasure Valley - Idaho
Posted on: April 14, 2005 by Jerry Neufeld
The cereal leaf beetle larval hatch will start in the very near future. Brad Brown from the U of I’s Parma Research and Extension Center has found adults on the ground. He has seen a few adults in flight. In addition, Landview Fertilizer field representatives have seen a few adults in grain fields south of Nampa. As temperatures warm up we can expect to see the adults become very active.
Adult Cereal Leaf Beetles will lay eggs in winter grains first. However, as spring grains (oats, barley, wheat) grow larger, the beetles will move to spring grain fields because they are the preferred hosts. Adults are small beetles about 1/4 to 3/8 inch in size, with a metallic blue head and wing covers, red pronotum, and yellow-orange legs. Eggs are never laid in clusters, but are deposited singly or in rows of up to three or four close to the mid rib on the upper leaf surface of hosts. Eggs can hatch in 4- 23 days depending on the temperatures. Scouts should be looking for adults and eggs at this point and not the larvae. Larvae are yellow to yellow-brown with a dark mass of slimy fecal material on their backs. Both adults and larvae feed on leaves. Feeding causes a characteristic stripping of the leaves. Economic thresholds are three larvae or eggs per plant, or one larva per flag leaf.
Cutworms
Sugarbeets Treasure Valley - Idaho
Posted on: April 14, 2005 by Jerry Neufeld
Representatives from Amalgamated Sugar Company are reporting they have found a few sugarbeet fields around the valley that are being damaged by cutworms. Weedy spots and field borders are typically “hot spots” for these pests.
Cutworms
All Crops Magic Valley
Posted on: April 14, 2005 by Jerry Neufeld
Representatives from Amalgamated Sugar Company are reporting they have found a few sugarbeet fields around the valley that are being damaged by cutworms. Weedy spots and field borders are typically “hot spots” for these pests.
Cereal Leaf Beetle
All Crops Treasure Valley - Idaho
Posted on: April 14, 2005 by Jerry Neufeld
The cereal leaf beetle larval hatch will start in the very near future. Brad Brown from the U of I’s Parma Research and Extension Center has found adults on the ground. He has seen a few adults in flight. In addition, Landview Fertilizer field representatives have seen a few adults in grain fields south of Nampa. As temperatures warm up we can expect to see the adults become very active.
Adult Cereal Leaf Beetles will lay eggs in winter grains first. However, as spring grains (oats, barley, wheat) grow larger, the beetles will move to spring grain fields because they are the preferred hosts. Adults are small beetles about 1/4 to 3/8 inch in size, with a metallic blue head and wing covers, red pronotum, and yellow-orange legs. Eggs are never laid in clusters, but are deposited singly or in rows of up to three or four close to the mid rib on the upper leaf surface of hosts. Larvae are yellow to yellow-brown with a dark mass of slimy fecal material on their backs. Both adults and larvae feed on leaves. Feeding causes a characteristic stripping of the leaves. Economic thresholds are three larvae or eggs per plant, or one larva per flag leaf.
Alfalfa and Clover Seed PMSP
Alfalfa Seed Treasure Valley - Idaho
Posted on: April 13, 2005 by Jerry Neufeld
The Pest Management Strategic Plan for Western U.S. Alfalfa and Clover Seed Production has been completed and posted on the internet at http://pestdata.ncsu.edu/pmsp/index.cfm. The plan can also be accessed by going to AlfalfaSeed.org and clicking on “Offsite Links” followed by clicking on the “Alfalfa Seed Pest Management” link.
Alfalfa Seed Pests
Alfalfa Seed Treasure Valley - Idaho
Posted on: April 12, 2005 by Jerry Neufeld
Brad Chambers from Pioneer Hi-Bred is reporting that cutworms and pea leaf weevils are starting to show up in new stands of alfalfa seed. Adult pea leaf weevils are grayish brown, slender weevils about 5 mm long, with a short snout. Adults chew notches out of alfalfa leaflet margins and sometimes can defoliate new seedling alfalfa causing serious stand loss. First reports of damage were in the Wilder area, but both pests have been found in the Nampa area also.
Season start up message
Announcements All Locations
Posted on: April 12, 2005 by Jerry Neufeld
Dear Pest Alert Subscriber;
The growing season in the Treasure Valley began in early March this year. By now a lot of crops have been planted and are emerging. It won’t be long before planting is in full swing across all of Idaho and pests start showing up.
At the present time there is quite a bit of uncertainty in production agriculture related to markets and water supplies. Because of these challenges, Sugar Magazine Editor Gary Rawlings wrote an article entitled “Whatever You Do, Don’t Cut Inputs” The article appeared in the February 2005 issue. In his article about sugarbeets, Rawlings says “weed, disease, and insect control products must be used. Shortcuts cannot be taken. It’s only the tonnage that will matter next fall with acres being eliminated.” Our goal with TV/PNWPestAlert.net is to inform you about pest problems in a timely manner. With earlier warning of pest problems, you can make more informed decisions that will help maximize use of your inputs.
The 2004 evaluation of TV/PNWPestAlert.net was favorable. Below are some of the comments subscribers submitted with the evaluation.
“I improved the timeliness of my chemical applications and improved my scouting methods because of the pest alert network.”
“Helped me to watch for mildew in beets for better timing. Helped in timing of field scouting for peach aphid in potatoes.”
“I improved the timeliness and reduced the number of my applications, the program felt like another set of eyes watching out for my crops.”
“I had more timely scouting activities as a result of knowing the status of lygus and powdery mildew.”
As you can see from the comments above, TV/PNWPestAlert.net is a valuable resource for the agriculture industry in Idaho and Oregon. As website administrators, we value and need your continued assistance. When pest outbreaks occur in 2005, please provide this information to one of us as quickly as possible so the information can be quickly posted to the website. In addition, please tell your neighbors or clients about the website. The more participation we have the better.
TV/PNWPestAlert.net would not be possible without our sponsors. Last year’s sponsors were the Idaho Alfalfa and Clover Seed Commission, the Idaho Sugarbeet Industry and the Idaho Potato Commission. We would like to extend a sincere thank you to them for their generous support. We are currently in the process of lining up sponsors for 2005.
Once again, thanks to everyone who has helped to make TV/PNWPestAlert.net a success. We wish each of you a safe and prosperous production season.
Sincerely,
Jerry Neufeld
Steve Reddy
Jeff Miller
Nora Olsen
William Bohl
Bryan Hopkins
Juliet Windes
Clint Shock
Lynn Jensen
lygus bug
All Crops Treasure Valley - Idaho
Posted on: March 17, 2005 by Jerry Neufeld, information provided by Jim Barbour
Degree days, also known as heat units or thermal units are the accumulation of temperature over time. Usually degree-days are only counted above a lower temperature threshold and below an upper threshold. Degree-days are used in agriculture and natural resources management to predict events and time management activities, such as when to sample or control a pest problem. In alfalfa seed we can use degree day units to predict the the occurrence of peak populations of 1st and 2nd instar lygus bugs hatching from eggs laid by overwintering adult lygus. This event takes right at 272 degree days. On average we reach 272 degree days in about mid-May, but there is considerable year-to year variation. Last year, for example, we had a very warm year and reached 272 degree day units on April 27, a bit more than two weeks ahead of the mid-May average. If you were thinking it has been warm this winter you're right. For the period beginning January 1, 2005 and ending today (March 17, 2005), we are are at 52 degree day units. That's about about 12 degree day units more than the same time period last year. If things don't cool down a bit we will be reaching peak lygus numbers even earlier this year than last.
Remember that the lygus degree day model indicates when peak populations of first generation 1st and 2nd instar nymphs should occur, not when treatment would be necessary. The degree day model is really useful as a tool to pinpoint early season sampling efforts. Treatment decisions should be made based on lygus thresholds and the presence of susceptible stages of alfalfa when grown for seed (the presence of flowers and flower buds that contribute to seed yield). So just because lygus bugs show up early doesn't necessarily mean that they will need to be treated early. It just means you should be on the lookout for potential problems. The warm weather means that other insects, such as the pea leaf weevil and cutworms could be making an early appearance as well, so be on the lookout for these as well, especially in new seedings.
If you want to know more about degree days or to monitor degree days yourself, go to the "OSU On-Line Phenology and Degree Day" web page at: http://ippc2.orst.edu/cgi-bin/ddmodel.pl?spp=lyg. Select the lygus bug [alfalfa seed] Ben Simko 2000 model (or any other model you might be interested in) in the drop down box at the top of the page. Don't change with the calculator mode settings, but do select the start and end dates and locations that are appropriate for you then hit the calculate button at the bottom of the page. You should get a print out of the degree day accumulations for the times selected and, at the bottom of the page, a graph of the data selected along with a graph showing the historical average for the same time.
Cull Onion Disposal in Idaho
Onion Treasure Valley - Idaho
Posted on: March 2, 2005 by Jerry Neufeld
Below is a Press Release from Micheal E. Cooper, Chief of the Bureau of Feeds and Plant Services at the Idaho State Department of Agriculture. The Press Release deals with the disposal of cull onions. For additional information on this subject, click on the “Crop Info” button on the left side of the TVPestAlert.net home page. Then click on “Onion” and finally “Cull Onion Memorandum.”
FOR IMMEDIATE RELEASE
February 25, 2005
DEPARTMENT OF AG REMINDS THE ONION INDUSTRY OF THE CULL ONION DISPOSAL FOR ONION MAGGOT CONTROL
BOISE, Idaho --- We are expecting it to be a big year for cull onions. The market was depressed to the point that many fields were never harvested are there are a lot of onions still in farm and commercial storage. March 15th is the deadline for disposal of cull onion piles in Ada, Canyon, Gem, Payette, Owyhee and Washington Counties, according to rules of the Idaho State Department of Agriculture (ISDA). Mike Cooper, Chief, Bureau of Feeds and Plant Services, Division of Plant Industries, ISDA said the potential for damage to Idaho's onion crop is the basis for the regulations." The larval stage of the onion maggot attacks and destroys portions of the onion bulb providing an avenue for fungi and bacteria to cause bulbs to rot during storage. With consecutive years of wet springs, the insect has been known to destroy 80% to 90% of the crop. We frequently find the onion maggot in cull onion piles."
According to state rules, cull onions – those not useable for human consumption or deemed waste - must be disposed of by March 15th of each year or within one week of sorting after March 15th. Trucks transporting onions should be covered to prevent spillage along roadsides. Such spilled onions create good breeding sites for the onion maggot.
A civil penalty of up to $1,000 per violation has been in effect since 2000. There are also new disposal methods such as dumping, feeding, composting, spreading, chopping and shredding. The University of Idaho “Best Management Practices” for the dumping or pit disposal of culls is referenced in the rules and is available through the University of Idaho Extension Service.
The onion maggot adult flies emerge in April and May and are attracted to the volatile odors given off by sprouting onions and new seedlings. The onion maggot can destroy up t two dozen seedlings during its two week life span, so damage to a field can be substantial. If not properly disposed of, culls serve as breeding and egg-laying sites for the adult flies.
A copy of the cull onion disposal rules, as well as other ISDA rules, can be obtained from the State of Idaho Homepage at:
http://www.state.id.us/adm/adminrules/rules/idapa02/02index.htm.
Double click on the cull onion disposal rules numerical designation of 02.06.17 and download it to your computer. You will need a copy of Acrobat 3.0 or better to read it. See the instructions at the top of that Web page to obtain a free copy of Acrobat.
Cooper said the regulations have been in effect for several years and the program is working well. "We have received excellent cooperation from the onion industry. Let us continue to work together to protect Idaho’s onion industry.
IPPMA potato grower educational meeting
Announcements Magic Valley
Posted on: February 3, 2005 by Nora Olsen
The University of Idaho and the Idaho Potato Pest Management Association will have an educational grower meeting on Feb. 23, 2005 from 9 am to 1 pm at the Odd Fellow's Hall in Wendell. Topics will include: storage issues, late blight and ring rot, aphid and colorado potato beetle management, growing potatoes will less water, insecticide seed treatment, and water outlook for the Magic Valley. Lunch will be provided and 2 recertification credits will be available. All are welcome. Contact Nora Olsen (208-736-3621) for additional information.
Treasure Valley Bean School
Announcements Treasure Valley - Idaho
Posted on: January 25, 2005 by Jerry Neufeld
The 2005 Treasure Valley Bean School will be held on Thursday February 10, at the Oregon Trail Church of God Gymnasium (23057 Old Highway 30, Caldwell; Exit 25 on I-84) from 8:00 am to 1:30 pm. BBQ lunch will be served. One pesticide license credit is pending.
The Keynote Speaker will be Karl H Dreher, Director of Idaho Department of Water Resources. Topics will include Nez Perce Water Settlement, Promotional Efforts of the U.S. Dry Bean Council, Bean Promotion Efforts in Mexico, Seed Treatments and Pesticide Record Keeping. There will also be reports from the Idaho Bean Commission and the Idaho/Oregon Bacterial Blight Association.
There is no cost to attend, but you must RSVP to the Canyon County Extension office at 459-6003 by February 3. Call Jerry Neufeld at the 459-6003 if you have any questions.
Outback Steakhouse gift certificate winners
Announcements Eastern Idaho
Posted on: December 15, 2004 by Jerry Neufeld
Thanks to everyone that recently completed an evaluation for the Pest Alert Network.
The winners of the $75 gift certificates to the Outback Steakhouse are: Ralph Graham, Darren Bradley and Rod Steele. The winners of the polo shirts and hats are Allan Landon, Jeffery Christianson and Gene Schmitt.
I will get the prizes in the mail ASAP.
Outback Steakhouse Gift Certificate Winners
All Crops Treasure Valley - Idaho
Posted on: December 15, 2004 by Jerry Neufeld
Thanks to everyone that recently completed an evaluation for the Pest Alert Network.
The winners of the $75 gift certificates to the Outback Steakhouse are: Ralph Graham, Darren Bradley and Rod Steele. The winners of the polo shirts and hats are Allan Landon, Jeffery Christianson and Gene Schmitt.
I will get the prizes in the mail ASAP.
Outback Steakhouse Gift Certificate Winners
All Crops All Locations
Posted on: December 15, 2004 by Jerry Neufeld
Thanks to everyone that recently completed an evaluation for the Pest Alert Network.
The winners of the $75 gift certificates to the Outback Steakhouse are: Ralph Graham, Darren Bradley and Rod Steele. The winners of the polo shirts and hats are Allan Landon, Jeffery Christianson and Gene Schmitt.
I will get the prizes in the mail ASAP.
