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sugarbeet root maggot
Sugarbeets Treasure Valley - Idaho
Posted on: May 11, 2006 by Jerry Neufeld
Field representatives from the Amalgamated Sugar Company are reporting adult sugarbeet root maggot flies have emerged and are flying. Adult flies begin to lay eggs near sugarbeet plants 3 to 10 days after emergence. After the larvae hatch they will begin feeding on the young sugarbeets. If you haven’t applied a treatment for sugarbeet root maggot consult your crop advisor or field representative from AMSCO for treatment options.
Cutworms in sugarbeets
Sugarbeets Magic Valley
Posted on: May 11, 2006 by Kelly Tindall
Cutworms ½ - ¾ inches were found in sugarbeets near Hunt in Jerome County. There are many species that attack sugarbeets but all are nocturnal, so you may see injury but not readily find the insect damaging the plants. If you see skips in the field, dig around the 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. At this time there are no established thresholds for cutworms in sugarbeets, but it may be worthwhile to consider adding an insecticide in with your next post-emergence herbicide application if you are seeing larvae and signs of injury. If you have any questions, you can contact Kelly Tindall (734-9590) or your Amalgamated Fieldman.
lygus bug in alfalfa seed
Alfalfa Seed Treasure Valley - Idaho
Posted on: May 4, 2006 by Jerry Neufeld
The current forecast is for the 1st and 2nd instar lygus numbers to peak on 20 May. We are still running very close to average, but cooler weather forecast for next week may slow things down a bit.
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 doesn't necessarily mean that they will need to be treated. It just means you should be on the lookout for potential problems. You should also be on the look out for other early season pests such as the pea leaf weevil and cutworms, 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 mess 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.
This information was provided by Dr. Jim Barbour, Research Entomologist with the University of Idaho at the Parma R & E Center.
Potato cyst nematode update
Potato All Locations
Posted on: May 4, 2006 by Jeff Miller
Many rumors have been circulated concerning the presence of the potato cyst nematode in Idaho. Unfortunately, many of these rumors are not true. As documented, confirmed information becomes available, it will be released through the Idaho State Department of Agriculture. Below is the most recent update on the current status of PCN. More information will follow.
Potato Cyst Nematode (PCN)
Stakeholder Update
(5/01/06)
SITUATION SUMMARY
On April 19, 2006 officials of USDA’s Animal and Plant Health Inspection Service (APHIS) and the Idaho State Department of Agriculture (ISDA) announced the detection of potato cyst nematode (PCN), Globodera pallida, a major pest of potato crops. This is the first detection of the pest in the United States. The microscopic nematodes pose no threat to human health and never actually enter the tuber, but can reduce the yield of potatoes through root damage. There is no evidence that the quality of potato tubers grown in Idaho has been affected. APHIS and ISDA are implementing actions to determine if the pest is distributed in fields in Idaho and, if so, prevent movement of PCN to uninfested areas. Officials are working cooperatively with the potato industry to provide Best Management Practices to deal with potato cyst nematode issues.
SURVEY
Program personnel are surveying fields and facilities that may be associated with the detected PCN. More than 1,000 soil samples have been collected from two adjoining suspect fields in eastern Idaho. Samples collected were sent to the University of Idaho Nematology Laboratory for initial screening and diagnostics. So far, none of the additional soil samples has tested PCN positive.
The source of the infestation has not been identified. The original soil sample came from ISDA-sampled tare dirt. Scientists conclusively identified 2 cysts as PCN in that sample. Additional cysts from that same sample have not been conclusively confirmed as PCN. No cysts have been discovered in any other field survey or sample to date. ISDA and APHIS are sampling suspect fields to trace the tare dirt sample to a field of origin so that it can be determined if the field is infested. Officials are also investigating the seed sources for the suspect fields.
REGULATION
APHIS emergency action notifications (EANS) and ISDA restrictions have been imposed at suspect sites. These state and federal actions restrict the movement of soil, plants, plant material and farm equipment which may have been exposed to the potato cyst nematode and is are intended to prevent the introduction and dissemination of the pest. To date, these restrictions have been imposed in Bingham, Bonneville, and Jefferson counties, but limited to seven sites which include fields, cellars and potato handling facilities. Previously restricted fresh packed product has been released to move in commerce. Potatoes and potato product are moving normally in domestic commerce. Japan, Canada, Mexico and Korea have placed restrictions on potato imports.
PERSONNEL
Approximately 50 APHIS and ISDA personnel are working on the cooperative control program at temporary facilities.
TRADE
ISDA, APHIS and potato industry officials are working with trade representatives from Canada, Japan, Korea, and Mexico to lift trade restrictions.
For addition information, or to receive the next PCN update contact:
Wayne Hoffman, ISDA (208) 332-8671
Claude Knighten, USDA (301) 734-5271
pesticide disposal
Announcements All Locations
Posted on: April 26, 2006 by Jerry Neufeld
The Idaho State Department of Agriculture is conducting a Pesticide Disposal Program at the Pickle Butte Landfill in Canyon County on Monday May 1, from 9:00 a.m. to 1:00 p.m. You can turn in up to 1,000 pounds of unusable pesticides for free. For more information go to the following website: http://www.agri.state.id.us/Categories/Pesticides/pdp/indexdisposalmain.php, or call Vic Mason at ISDA (465-8442) if you have questions.
Cereal Leaf Beetle
Small Grains Treasure Valley - Idaho
Posted on: April 25, 2006 by Jerry Neufeld
Dr. Brad Brown from the U of I Parma Research and Extension Center was scouting a Cereal Leaf Beetle insectary yesterday and found a few CLB flying and signs of adult feeding on the leaves. He also found eggs on about 5% of the plants. The eggs were in early spring planted oats and not in adjoining winter oats that were further along in development. It is not too early to scout for CLB eggs as an indication of potential populations of the larvae.
Potato cyst nematode in eastern Idaho
Potato All Locations
Posted on: April 21, 2006 by Jeff Miller
An ealier alert posted today erroneously reported that potato cyst nematode was easy to control and that it caused little damage to the potato crop. This was misleading. Potato cyst nematode can cause serious yield reductions in potato. Additionally, control can be difficult for various reasons.
Information on the status of this problem will be forthcoming as more solid data becomes available.
Potato cyst nematode in eastern Idaho
Potato All Locations
Posted on: April 21, 2006 by Jeff Miller
The potato cyst nematode has been confirmed in Idaho from a tare dirt sample in eastern Idaho. The confirmation did not come from plant material. Further work is underway to learn more about the source of this potential source of the soil sample. This nematode is not particularly difficult to control, and does not cause extensive crop damage. The problem is that the nematode is a quarantine pest. All official information concerning this finding can be found at:
http://www.aphis.usda.gov/newsroom/content/2006/04/potatocyst_ppq.shtml
lygus bug in alfalfa seed
Alfalfa Seed Treasure Valley - Idaho
Posted on: April 20, 2006 by Jerry Neufeld
Dr. Jim Barbour, Research Entomologist with the U of Idaho at the Parma R and E Center provided the following information about lygus bug in alfalfa seed.
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 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 about mid-May, but there is considerable year-to year variation. Right now we are sitting at 78 Degree Days. That's just about right on the historical average for this time of year and well below last year when we were at 177 degree days on this date (about the time it started raining and didn't stop for a month). The forecast is for the 1st and 2nd instar lygus number to peak on 21 May, but stay tuned for more information.
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 doesn't necessarily mean they need to be treated . It just means you should be on the lookout for potential problems. You should also be on the look out for other early season pests such as the pea leaf weevil and cutworms, 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 the calculator mode settings, but do enter 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 period.
New potato IPM book available
Potato All Locations
Posted on: April 13, 2006 by Jeff Miller
FOR IMMEDIATE RELEASE
CONTACT: STEPHANIE KLUNK
March 28, 2006
(530) 754-6724
UC Statewide Integrated Pest Management Program releases pest management guide for potatoes
Growers and pest management professionals can now find the latest integrated pest management guidance for the potato tuberworm, a new, troublesome pest in the Pacific Northwest, in Integrated Pest Management for Potatoes in the Western United States, 2nd Edition.
The tuberworm has been recorded in California since 1856, and several times in the last 20 years it was found in the Columbia Basin of Oregon and Washington. However, it was not a major concern for growers in the Pacific Northwest until 2002, when a field with severe potato tuberworm damage was documented in Oregon. The pest is difficult to control and over the years, many farmers have relied extensively on the use of insecticides to control it.
Tuberworm is just one of many pests described in the updated IPM manual by the University of California Statewide IPM Program. Growers can find information on diagnosis and treatment for more than 120 potato pests and disorders—ranging from black scurf, which causes superficial damage, to late blight, which can destroy a whole crop. The guide includes 51 new color photos (bringing the total to 210), 58 tables and line drawings, a section on organic potato production, and a comprehensive index.
Protecting potatoes from insect infestations and diseases is essential to the production of a high-quality crop. The manual contains a new section on general predators and extensively revised sections on aphid management and virus transmission, leafhoppers and phytoplasma transmission, late blight, bacterial early dying, necrotic strains of Potato Virus Y, black dot, silver scurf, and using cover crops for nematode management. Included in the new edition are information on testing Colorado potato beetle populations for insecticide resistance, and a detailed discussion of differential host tests for identifying root knot nematode species and races.
Forty university researchers and Cooperative Extension specialists from across the West contributed to making this revision an up-to-date and essential reference for potato growers and pest management professionals.
More information on the potato tuberworm is also available on the UC Statewide IPM Program’s Web site at http://www.ipm.ucdavis.edu/PMG. Look under “potatoes.”
To order the potato IPM manual, contact ANR Publications, 1-800-994-8849, or www.anrcatalog.ucdavis.edu Ask for publication 3316.
Media Contact:
Stephanie Klunk, Communications Specialist
UC Statewide IPM Program
(530) 754-6724
STATEWIDE INTEGRATED PEST MANAGEMENT PROGRAM
UNIVERSITY OF CALIFORNIA, DAVIS
ONE SHIELDS AVENUE
DAVIS, CA 95616-8621
www.ipm.ucdavis.edu
Stripe Rust in Small Grains
Small Grains All Locations
Posted on: April 11, 2006 by Jerry Neufeld
Recent weather conditions in the Pacific Northwest are once again favorable for the development of stripe rust in small grains. Diana Roberts, PhD, Area Extension Agronomist with Washington State University predicted stripe rust presence from a forecasting model based on winter temperatures. The results were presented by Scott Yates in his article “Rust Expected to Hit Later This Year” in the Capital Press (February 24, 2006). The forecast results indicate that stripe rust will likely develop on susceptible varieties as severely as last year.
Although the forecast model indicates as equally severe stripe rust for 2006 as it was in 2005, Dr. Roberts says the disease will most likely start at least 2-3 weeks later in 2006. This is because of the following two factors. First, due to the lack of moisture last fall during planting time many winter wheat fields were planted in late October. The late plantings should have reduced stripe rust infection before the winter. Second, the cold weather last December prevented further development of stripe rust during the winter months. The cold period in mid February has further slowed winter wheat growth and should have also slowed rust development in infected plant tissue. Therefore, based on the forecast model and these considerations, we will likely have another severe stripe rust year in the PNW. The disease will start later than last year and the damage should not be as great as last year because the initial rust pressure will not be as high in 2006 and the growth period for stripe rust development will be shorter. However, stripe rust is capable of quickly developing and spreading if temperatures and moisture conditions are favorable. Recent Treasure Valley weather conditions were similar to those used in Dr. Robert’s stripe rust prediction model.
Most spring wheat varieties planted in the Treasure Valley have good adult plant stripe rust resistance; however, this does not preclude the need for field scouting to determine actual rust conditions in your fields. That is particularly true if you are growing a small grain variety that is not commonly grown in our area and you are not sure of its stripe rust susceptibility. According to Dr. Brad Brown from the University of Idaho’s Parma Research and Extension Center, it is not too early to scout your earliest fall planted winter grain fields for this disease. In addition, Dr. Brown expects later planted spring wheat will be the most susceptible to stripe rust in 2006.
Pesticide Safety in Spanish
Announcements All Locations
Posted on: February 23, 2006 by Jerry Neufeld
The University of Idaho Extension System and the Idaho State Department of Agriculture are conducting a Pesticide Safety Training in Spanish at Parma on March 14, and in Weiser on March 15, 2006. Pesticide Applicator Training Credits are pending. For additional information click on “Announcements” then “Pesticide Safety Training in Spanish.” Call Jerry Neufeld at 459-6003 if you have questions.
Cull Onions
Onion Treasure Valley - Idaho
Posted on: February 23, 2006 by Jerry Neufeld
A new publication from the ISDA entitled “Cull Onion Disposal in Idaho” has been posted to the TVPestAlert.net website. The publication can be viewed by clicking on “Crop Info” then “Onion” and finally “Cull Onions 2006.”
Idaho Potato Pest Management Association meeting.
Announcements All Locations
Posted on: February 13, 2006 by Nora Olsen
The annual Idaho Potato Pest Management Association (IPPMA) meeting is scheduled for February 16, 2006 at the Odd Fellow’s Hall, Wendell, Idaho. All are welcome- you don't have to be a member to attend. The meeting will start at 9:00 am. and end at 1 pm. The agenda will include “Potato tuber moth concerns and control”, “Chemical control of early blight: How to get the most bang for your buck”,“Potato viruses: yield effects and other concerns”, “How to grow and store potatoes for processing quality”, “Manure Management in Potato Cropping Systems”, “Gowan products for potato and corn cropping systems”. Lunch will be provided (sponsored by Gowan Company). Two Idaho Ag Pesticide License Recertification credits will be available. Please contact Nora Olsen at 736-3621 with questions. Hope to see you there.
Potato Education Meeting (Idaho Potato Pest Management Assoc
All Crops All Locations
Posted on: February 10, 2006 by Nora Olsen
The annual Idaho Potato Pest Management Association (IPPMA) meeting is scheduled for February 16, 2006 at the Odd Fellow’s Hall, Wendell, Idaho. All are welcome- you don't have to be a member to attend. The meeting will start at 9:00 am. and end at 1 pm. The agenda will include “Potato tuber moth concerns and control”, “Chemical control of early blight: How to get the most bang for your buck”,“Potato viruses: yield effects and other concerns”, “How to grow and store potatoes for processing quality”, “Manure Management in Potato Cropping Systems”, “Gowan products for potato and corn cropping systems”. Lunch will be provided (sponsored by Gowan Company). Two Idaho Ag Pesticide License Recertification credits will be available. Please contact Nora Olsen at 736-3621 with questions. Hope to see you there.
Potato Education Meeting (Idaho Potato Pest Management Assoc
All Crops All Locations
Posted on: February 10, 2006 by Nora Olsen
The annual Idaho Potato Pest Management Association (IPPMA) meeting is scheduled for February 16, 2006 at the Odd Fellow’s Hall, Wendell, Idaho. All are welcome- you don't have to be a member to attend. The meeting will start at 9:00 am. and end at 1 pm. The agenda will include “Potato tuber moth concerns and control”, “Chemical control of early blight: How to get the most bang for your buck”,“Potato viruses: yield effects and other concerns”, “How to grow and store potatoes for processing quality”, “Manure Management in Potato Cropping Systems”, “Gowan products for potato and corn cropping systems”. Lunch will be provided (sponsored by Gowan Company). Two Idaho Ag Pesticide License Recertification credits will be available. Please contact Nora Olsen at 736-3621 with questions. Hope to see you there.
Potato Education Meeting (Idaho Potato Pest Management Assoc
All Crops All Locations
Posted on: February 10, 2006 by Nora Olsen
The annual Idaho Potato Pest Management Association (IPPMA) meeting is scheduled for February 16, 2006 at the Odd Fellow’s Hall, Wendell, Idaho. All are welcome- you don't have to be a member to attend. The meeting will start at 9:00 am. and end at 1 pm. The agenda will include “Potato tuber moth concerns and control”, “Chemical control of early blight: How to get the most bang for your buck”,“Potato viruses: yield effects and other concerns”, “How to grow and store potatoes for processing quality”, “Manure Management in Potato Cropping Systems”, “Gowan products for potato and corn cropping systems”. Lunch will be provided (sponsored by Gowan Company). Two Idaho Ag Pesticide License Recretification credits will be available. Please contact Nora Olsen at 736-3621 with questions. Hope to see you there.
Crop Protection Meeting credit update
Announcements All Locations
Posted on: February 6, 2006 by Jeff Miller
For the upcoming University of Idaho Crop Protection meeting being held in Idaho Falls on Feb. 7 (Shilo Inn from 8:30-4:00) and Pocatello on Feb. 8 (Ramada Inn from 8:30-4:00), 6 ISDA and 6.5 CCA (Pest Management) will be available at each meeting. More details on the meeting can be found at:
http://www.ag.uidaho.edu/potatopath/meetings/meetings.html
Attendees can receive 3 ISDA credits for just attending either the morning (small grains and alfalfa) or afternoon (potatoes/sugarbeets) sessions. 3.5 CCA credits are available in the morning and 3 in the afternoon.
The meetings are free.
Please contact Jeff Miller at 208-397-4181 if you have any more questions.
U of I Crop Protection Meeting
All Crops All Locations
Posted on: January 20, 2006 by Jeff Miller
The third annual University of Idaho Crop Protection Seminar will be held February 7 in Idaho Falls at the Shilo Inn and February 8 in Pocatello at the Ramada Inn. Meetings will begin at 8:30 and end at 4:00. Lunch will be provided. Please RSVP to Jeff Miller at jsmiller@uidaho.edu or 397-4181 so we can get an accurate head count for lunch. On both days the morning session will focus on wheat, barley, corn, and alfalfa. The afternoon session in Idaho Falls will focus on potatoes and the afternoon session in Pocatello will focus on sugarbeets and potatoes. A copy of the agenda can be found at:
http://www.ag.uidaho.edu/potatopath/meetings/2006_crop_protection_meeting.pdf
Evaluation Survey
Announcements All Locations
Posted on: December 9, 2005 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 Doug Gross (potato grower) and Mike Larsen. The winners of the polo shirts and hats are Scott Rinehart and David Shaw.
I will get the prizes in the mail ASAP.
Crop consultant potato disease meeting update
Potato All Locations
Posted on: December 5, 2005 by Jeff Miller
The potato disease workshop to be held in Burley on December 14 has received 3.5 Pest Management CCA credits and 3 ISDA credits for pesticide license recertification. More information on the meeting can be found at:
http://www.ag.uidaho.edu/potatopath/
Look under the "Meetings" section.
Please contact Jeff Miller at 208-397-4181 if you have any further questions.
CCA Training
Announcements Treasure Valley - Idaho
Posted on: December 5, 2005 by Jerry Neufeld
Dr. Brad Brown from the UI Parma Research and Extension Center is hosting a Treasure Valley CCA Training workshop on Thursday December 8, 2005 at the UI Parma Research and Extension Center. Registration for the program will start at 8:30 a.m. A total of 5.5 CCA credits will be awarded at the conclusion of the program (2.5 SW, 1 PM and 2CM). Below is the agenda for the program.
Time Session Topic Competency Speaker
8:50 - 9:50 Potato Physiologic Disorders CM Dr. Mike Thornton
9:50 - 10:50 Small Grain Planting Dates & Est CM Dr. Brad Brown
11:00 - 11:30 Alfalfa Seed IPM PM Dr. Jim Barbour
11:30 - 12:00 Iris Yellow Spot Virus in Onions PM Dr. Krishna Mohan
1:00 - 1:30 Soil Moisture Monitors in Canyon Co. SW Jerry Neufeld
1:30 - 2:00 Soil Moisture Monitoring in Wa. Co. SW Steve Reddy
2:00 - 3:00 Small Grains Water Management SW Dr. Brad Brown
3:10 - 3:40 Onion Water Management SW Dr. Clint Shock
3:40 - 4:10 Irrigation by Soil Water Potential SW Dr. Clint Shock
CCA Training
Announcements Treasure Valley - Idaho
Posted on: November 29, 2005 by Jerry Neufeld
Dr. Brad Brown from the UI Parma Research and Extension Center is hosting a Treasure Valley CCA Training workshop on Thursday December 8, 2005 at the UI Parma Research and Extension Center. Registration for the program will start at 8:30 a.m. A total of 5.5 CCA credits will be awarded at the conclusion of the program (2.5 SW, 1 PM and 2CM). I do not have any information about cost, lunch, or if you need to RSVP. Call Dr. Brown at 208.722.6701 for additional information.
Pesticide Applicator Re-Certification Training
Announcements Treasure Valley - Idaho
Posted on: November 28, 2005 by Jerry Neufeld
A Pesticide Applicator Re-Certification Training will be held on Tuesday December 13, 2005 at the Caldwell, ID Police Department (110 S 5th Street). Six Idaho and Oregon pesticide applicator license credits are being offered, as well as 5.5 CCA credits. Cost for this program is $25.00 to be paid at the door; however, you must call 208.459.6003 prior to December 8, 2005 to RSVP. Lunch and refreshments will be provided. Registration starts at 8:00 am; program starts at 8:30 am. Program is sponsored by UI Canyon County Extension and the Idaho State Department of Agriculture. You can view the flyer for this program by clicking on “Crop Info” then “Announcements” and then “Pesticide Applicator Re-Certification Training.” Call Jerry Neufeld at 208.459.6003 if you have questions.
Potato Disease Management Meeting
Potato All Locations
Posted on: November 22, 2005 by Jeff Miller
University of Idaho Crop Consultant Training Workshop
December 14, 2005
Best Western Conference Center
800 N. Overland Ave.; Burley, ID
For all potato growers and consultants:
Come to learn the latest information on managing diseases of potato. Presentations will be given on managing soilborne, foliar, and storage diseases of potatoes.
Agenda:
8:30-9:30: Managing Rhizoctonia canker in potato
9:30-10:30: Managing foliar diseases (white mold, early blight, and late blight with some information on black dot)
10:30-12:00: Managing storage diseases of potato (pink rot, leak, silver scurf, and dry rot)
Presentations will be given by Dr. Jeff Miller (University of Idaho) and Dr. Terry Miller (Miller Research, Inc.) and will focus on new results from fungicide trials relating to product rates, fungicide application timing and methods, and strategies for avoiding the development of fungicide resistance in pest populations.
Please contact Jeff Miller at 208-397-4181 for further information.
