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spider mites in sugarbeets
Sugarbeets Treasure Valley
spider mites
Posted on: June 28, 2013 by Jerry Neufeld
Spider mites were a major issue in sugarbeets in 2012. This alert is to let you know that now is the time to be on the watch for them. If you are getting ready to apply fungicide for mildew, you might want to also scout for mites and treat them both at the same time if necessary. Always check with your Amalgamated Sugar Company Crop consultant if you have any questions.
spotted wing drosophilla
Tree Fruits Treasure Valley
spotted wing drosophilla
Posted on: June 28, 2013 by Jerry Neufeld
The following information about Spotted Wing Drosophila was provided by Dr. Jim Barbour, IPM Specialist at the University of Idaho SW Idaho Research and Extension Center in Parma, Idaho.
Spotted Wing Drosophila Found in Southwest Idaho
Spotted wing drosophila (SWD), Drosophila suzukii, is an invasive insect pest of economically valuable small fruit and tree fruit crops. The spotted wing drosophila was first identified in the Western United States in late 2008. Since July 2009, it has been found in Florida, Oregon and Washington and now appears to be established in many Pacific Northwest fruit crops. Spotted wing drosophila was confirmed in samples from Nez Pierce, Latah and Canyon Cos., ID in August of 2012. In June of 2013, two adult spotted wing drosophila, a male and a female, were found in in an orchard south of Fruitland, Idaho being monitored for spotted wing drosophila by crop consultant Jennifer Riebe. Spotted wing drosophila is a temperate vinegar or pomace fly native to Southeast Asia preferring temperatures of 20-30 °C (68-86 °F). The presence of the flies in samples this early in the season indicates the flies may have overwintered in southwest Idaho.
Spotted wing drosophila differs from the common drosophila species such as Drosophila melanogaster that occur in Pacific Northwest fruit crops in that it can attack undamaged fruit still on the tree; the common species will only attack damaged, overripe, or dropped fruit. Spotted wing drosophila have the potential to be a very serious pest of tree and small fruits. Commercial fruit producers and home gardeners should monitor their crops for presence of SWD. Please see the attached information on identification, biology, monitoring and management of spotted wing drosophila. Because of the relatively recent nature of this introduction, the provided information is subject to change as we learn more about the biology of this pest.
PLEASE REPORT SUSPECT SWD INFESTATIONS:
Preserve specimens in alcohol (rubbing alcohol is fine) and send to:
Idaho State Department of Agriculture, Plant Industries Division, P.O. Box 790 Boise, ID 83701. Please include your name, address and phone number or you may call (208) 332-8620 to report the possible find.
Or:
Jim Barbour, University of Idaho, Parma Research and Extension Center, 29603 U of I Lane, Parma, ID 83660. Or call (208) 722-6701 to report the find or for more information on this insect.
Samples also may be submitted to your County Educators at your local University of Idaho Cooperative Extension office.
Other Resources:
Identification and Management resources:
Identification and biology: http://spottedwing.org/
Identification card SWD males: http://www.ipm.ucdavis.edu/PDF/PMG/SWD_IDCard.pdf
Identification card SWD females: http://www.ipm.ucdavis.edu/PDF/PMG/SWD-ID-Dsuzukii.pdf
Identification and management including trapping information:
http://jenny.tfrec.wsu.edu/opm/displaySpecies.php?pn=165
http://ipm.wsu.edu/small/pdf/Concord_Grape_SWD_Bulletin_v1_02.pdf
http://extension.usu.edu/files/publications/publication/ENT-140-10.pdf
Malheur Experiment Station Field Day
Announcements Treasure Valley
Posted on: June 28, 2013 by Jerry Neufeld
The OSU Malheur Experiment Station Field Day is July 10, 2013. Click on the pdf below for more information.
Iris Yellow Spot Virus
Onion Treasure Valley
Iris Yellow Spot Virus
Posted on: June 28, 2013 by Jerry Neufeld
Dr. Clint Shock from the OSU Malheur Experiment Station is reporting that Iris Yellow Spot virus has been confirmed in the Fruitland, Idaho area. Make sure onion fields are maintained at an adequate fertility level, and that the soil moisture level is kept at about the 20 centibar level. Make thrips control insecticide applications every 7 - 10 days.
Miller Research Potato Pest Management Field Day
Potato All Locations
Posted on: June 28, 2013 by Jeff Miller
The 2013 Miller Research Potato Pest Management Field Day will be held August 14 beginning at 9:00 am at Miller Research in Rupert, ID (426 E 200 N). A brief presentation will be followed by the opportunity to tour the research trials and see the performance of various fungicide programs on early blight, white mold, Rhizoctonia and other potato diseases. We will be highlighting research that has been sponsored by the Idaho Potato Commission. We will conclude the tour around noon and lunch will be provided.
Please RSVP so that we can plan appropriately for the tour and for lunch. Contact Jeff Miller at 431-4420 or jeff@millerresearch.com.
ODA restricts use of certain dinotefuran pesticides
Announcements Treasure Valley - Oregon
Posted on: June 27, 2013 by Stuart Reitz
June 27, 2013... The Oregon Department of Agriculture is restricting the use of 18 pesticide products containing the active ingredient dinotefuran while it continues the investigation of a large kill of bumblebees in Wilsonville and Hillsboro this month. By adopting a temporary rule, ODA is taking action, in an abundance of caution, to avoid the potential of similar large bee kills this summer due to specific pesticide applications.
“I have directed the agency to take this step in an effort to minimize any potential for additional incidents involving bee deaths connected to pesticide products with this active ingredient until such time as our investigation is completed and we have more information,” says ODA Director Katy Coba. “Conclusions from the investigation will help us and our partners evaluate whether additional steps need to be considered.”
The ODA restriction focuses on ornamental, turf, and agricultural pesticide products that are used by both professional applicators and homeowners. Products with the active ingredient dinotefuran registered in Oregon for other uses, such as flea and tick control on pets or home ant and roach control, are not affected by the restriction. ODA’s concern is focused on those uses that may impact pollinators.
By statute, ODA has legal authority to establish limitations and procedures deemed necessary and proper for the protection of bees and other pollinating insects. The temporary rule, which goes into effect immediately, will be enforced for 180 days, by which time ODA is expected to complete its pesticide use investigations of the Wilsonville and Hillsboro incidents. Those investigations will determine if the pesticide applications were in violation of state and federal pesticide regulations, and will assist ODA in addressing any potential future actions.
ODA’s Pesticide Program has established a website with more information on the dinotefuran restriction, including a list of specific products affected as well as instructions for those who may have purchased these products. Go to
Agricultural products containing dinotefuran include:
Product Name EPA Reg. No. Registrant
Safari 20 SG 33657-16-59639 Valent USA Corporation
Safari 20 SG 86203-11-59639 Valent USA Corporation
Safari 2 G 59639-149 Valent USA Corporation
Venom 59639-135 Valent USA Corporation
Scorpion 35SL 10163-317 Gowan Company
Please see the ODA announcement (http://oregon.gov/ODA/PEST/Pages/Pollinator.aspx) for a complete list of restricted pesticides and additional information.
Aberdeen Cereals Field Day
All Crops Eastern Idaho
Various
Posted on: June 26, 2013 by Juliet Marshall
27 Jun Aberdeen: UI Cereals Extension and Wheat Breeding Field Day
WHERE: Aberdeen R&E Center, 1693 S 2700 W, Aberdeen, ID
WHEN: Tour starts at 9:00 AM. Lunch provided.
Please join us to tour the Aberdeen Cereals Extension Variety Trials and the UI Wheat Breeding Trials!
Aberdeen Cereals Field Day
Small Grains Eastern Idaho
Various
Posted on: June 26, 2013 by Juliet Marshall
27 Jun Aberdeen: UI Cereals Extension and Wheat Breeding Field Day
WHERE: Aberdeen R&E Center, 1693 S 2700 W, Aberdeen, ID
WHEN: Tour starts at 9:00 AM. Lunch provided.
Please join us to tour the Aberdeen Cereals Extension Variety Trials and the UI Wheat Breeding Trials!
potato psyllids found in Ada, Canyon, and Elmore Counties
Potato All Locations
potato psyllids and ZC
Posted on: June 21, 2013 by Erik Wenninger
--Results to date of sticky card captures from the ca. 90 fields being monitored with 4 yellow sticky cards can be found here: https://docs.google.com/spreadsheet/ccc?key=0AuZRwfbNUs2YdHc2TVpneVJoeGk0ZDRIaHJQajhDVUE#gid=0
--1 potato psyllid was found in a field in Elmore County this week.
--Results to date of sampling from the 13 fields being monitored with yellow sticky cards, vacuum samples, and leaf samples can be found here: https://docs.google.com/spreadsheet/ccc?key=0AuZRwfbNUs2YdFRNeW5ReDI2bTNWM0FwYmsxSnB1aGc#gid=0
--1 potato psyllid was found in a field in Ada County and a total of 3 potato psyllids was found across two fields in Canyon County this week.
--Any scouting programs underway for potato psyllids should be intensified, and IPM programs should be in place. Refer to the following site for guidance on scouting and IPM programs for potato psyllids: http://extension.uidaho.edu/kimberly/tag/potato-psyllid-and-zebra-chip/
» http://extension.uidaho.edu/kimberly/tag/potato-psyllid-and-zebra-chip/
Potato Psyllids detected in Malheur County
All Crops Treasure Valley
Potato Psyllid
Posted on: June 21, 2013 by Stuart Reitz
Four potato psyllids were found on one yellow sticky card placed in a potato field in Malheur County. This was the only field with psyllids out of 20 fields monitored during the week of June 12-19.
More information and resources on potato psyllids and zebra chip can be found at the link below.
Click on the link(s) below for more information about this pest:
» http://www.nwpotatoresearch.com/IPMStuff/PDFs/PotatoPsyllid.pdf
» http://extension.uidaho.edu/kimberly/tag/potato-psyllid-and-zebra-chip/
Field Days Next week! Dryland and Irrigated
Small Grains All Locations
Variety information and Numerous Pests
Posted on: June 20, 2013 by Juliet Marshall
Please join us for the latest information on diseases of small grains and variety information:
25 Jun Rockland: UI Wheat Breeding Program,
9:30 AM Arbon Valley: UI Wheat Breeding Program, 1:30 pm
WHERE: Meet at UI Breeding plots in Rockland and Arbon
WHEN: 9:30 AM in Rockland, 1:30 PM in Arbon
CONTACTS: Reed Findlay, (208-226-7621), rfindlay@uidaho.edu; Jianli Chen, (208-397-4162), jchen@uidaho.edu
26 Jun Rupert: UI Cereals Extension Field Day
WHERE: 700 E. 600 N.
WHEN: registration at 9:30 AM. Lunch is provided.
CONTACTS: Joel Packham, (208-878-9461) jpackham@uidaho.edu; Juliet Marshall, (208-390-4859), juliet.marshall@uidaho.edu
27 Jun Aberdeen: UI Cereals Extension and Wheat Breeding Field Day
WHERE: Aberdeen R&E Center, 1693 S 2700 W, Aberdeen, ID
WHEN: Tour starts at 9:00 AM. Lunch provided.
CONTACTS: Juliet Marshall, (208-390-4859), juliet.marshall@uidaho.edu; Jianli Chen, (208-397-4162), jchen@uidaho.edu
Early blight found
Potato All Locations
Early Blight
Posted on: June 20, 2013 by Jeff Miller
A sample of early blight from Rangers being grown in the Hazelton area was found yesterday. Lesions were only observed on the lower, senescing leaves of the plant. This is early for this area. The most effective timing for fungicide application for early blight control is just before row closure.
A research report by Miller Research outlining the relative efficacy of different fungicide programs can be found at the link listed below.
One potato psyllid detected in Canyon County potato field
Potato All Locations
potato psyllids and ZC
Posted on: June 17, 2013 by Erik Wenninger
Among the approximately 90 fields are being monitored only with yellow sticky cards in cooperation with several crop consultants, one potato psyllid was found on a card in Canyon County last week. This psyllid will be tested for Lso, the bacterium that causes zebra chip.
Results to date of sticky card captures from the ca. 90 fields being monitored with yellow sticky cards can be found at the link below.
https://docs.google.com/spreadsheet/ccc?key=0AuZRwfbNUs2YdHc2TVpneVJoeGk0ZDRIaHJQajhDVUE#gid=0
Weekly update summaries will be extended to stakeholders; however, to obtain the most up-to-date information on trap captures, this website can be checked at any time for periodic updates over the week.
A spreadsheet detailing results from the 13 fields being monitored using sticky cards, vacuum samples, and leaf samples will be posted soon. So far no psyllids have been detected from these sites.
More information and resources on potato psyllids and zebra chip can be found at the link below.
» https://docs.google.com/spreadsheet/ccc?key=0AuZRwfbNUs2YdHc2TVpneVJoeGk0ZDRIaHJQajhDVUE#gid=0
» http://extension.uidaho.edu/kimberly/tag/potato-psyllid-and-zebra-chip/
No potato psyllids detected in Idaho potatoes yet
Potato All Locations
potato psyllids and ZC
Posted on: June 14, 2013 by Erik Wenninger
The University of Idaho, in collaboration with Miller Research and several crop consultants across the state initiated a scouting program during the week of May 13 that covers commercial potato fields throughout southern Idaho. The project is funded in part by ISDA and IPC. Thirteen fields are being monitored with 10 yellow sticky cards, vacuum samples, and leaf samples. Approximately 90 additional fields are being monitored with 4 yellow sticky cards. Thus far, no potato psyllids have been found in any samples from potato fields.
More information and resources on potato psyllids and zebra chip can be found at the link below.
» http://extension.uidaho.edu/kimberly/tag/potato-psyllid-and-zebra-chip/
Cereal Disease Update
Small Grains All Locations
Stripe rust and other cereal diseases / insects
Posted on: June 14, 2013 by Juliet Marshall
Stripe rust continues to spread in Brundage and is showing up in other susceptible winter wheat varieties such as Garland hard red winter wheat. Given the current weather, the widespread nature of stripe rust in southern and eastern Idaho, and the forecast for the next week, stripe rust will start to show up in our spring wheat fields, especially the susceptible varieties.
Many winter wheat fields are past legal application of fungicides, based on growth stage and pre-harvest application (PHI) index. Please follow label directions. For fields still within the window of application, the most susceptible varieties (based on reaction to previous 2011 races) include:
Hard winter wheat:
susceptible - Deloris, DW, Boundary, Garland, Golden Spike, Moreland, Whetstone, Yellowstone, Weston, Promontory, Juniper.
Soft white winter:
susceptible - Brundage, AP Legacy, AP Badger, WB 470, Lambert, Goetze, WB528 ("slow rusting"), Agripro Legion and Salute.
This list is by no means totally inclusive. Many of the winter wheat fields, especially towards the Magic Valley and Burley areas, are past the application window (50% heading or 30 days PHI depending on fungicide used).
For the spring wheats, keep an eye on the most susceptible varieties, which include hard wheats WB 936, UI Winchester, Klasic, Snow Crest, Bullseye, Kelse, Jerome, Jefferson, Kronos (durum), WB-Idamax, and WB-Paloma. In the soft spring wheat varieties, keep an eye on Jubilee, Alpowa, Cataldo, Penawawa, and Nick. High-temperature, adult plant resistance (HTAP) should be kicking in with varieties such as Alturas and UI Pettit, but again, please scout and never assume the environmental conditions are sufficient to sustain any initiated HTAP.
Scout resistant varieties as well - never assume stripe rust won't change virulence patterns.
IN ADDITION TO stripe rust, other problems that are surfacing include Cereal Leaf beetle. Damage has been reportedly significant in the areas south and west of Blackfoot. A great reference for CLB is the University of Idaho's Current Information Series #994 (CIS994) found at http://www.cals.uidaho.edu/edComm/pdf/CIS/CIS0994.pdf This reference puts the economic threshold for insecticide application at 3 larvae per plant or 3 eggs per plant or both BEFORE boot, or after boot growth stage, 1 larvae per flag leaf. There are many pesticides listed for CLB control in the 2013 PNW Insect Management Handbook http://pnwhandbooks.org/insect/ .
Now is the time to consider preventative action for our spring grain for control of FHB. Spring grain is fast approaching heading, with some of our earliest varieties like Klasic hard white showing awns and ear emergence. ESPECIALLY if you have planted spring grains following corn, consider application of one of three effective fungicides: Prosaro, Caramba or Proline. Conditions are favorable for FHB infection, especially with these storms! For wheat, application should be at 50% flowering. For barley, application will be at early head emergence. Internet references for FHB in small grains include http://msuextension.org/publications/AgandNaturalResources/MT200806AG.pdf (Mary Burrows at Montana State) and http://www.ag.ndsu.edu/pubs/plantsci/smgrains/pp804.pdf (Marcia McMullen at NDSU).
Winter wheat and winter barley diseases that are showing up: Barley Yellow Dwarf Virus, Wheat Streak Mosaic Virus (dry land areas), Eyespot (straw breaker foot rot), environmental damage associated with freezing temperatures.
Spring diseases that have started to show up - so far, black chaff in wheat (Xanthomonas) is just beginning. CURRENT weather is CONDUCIVE for continued development of black chaff in wheat and bacterial blight in barley (both caused by Xanthomonas bacteria. NO fungicides will control Xanthomonas).
Also, damage from Cereal Cyst Nematode is occurring in the sandy soils around Rexburg and Sugar City.
No potato psyllids detected in Idaho potatoes so far
Potato All Locations
potato psyllids and ZC
Posted on: June 7, 2013 by Erik Wenninger
The University of Idaho, in collaboration with Miller Research and several crop consultants across the state initiated a scouting program during the week of May 13 that covers commercial potato fields throughout southern Idaho. The project is funded in part by ISDA and IPC. Thirteen fields are being monitored with 10 yellow sticky cards, vacuum samples, and leaf samples. Approximately 90 additional fields are being monitored with 4 yellow sticky cards; scouting efforts in some fields (especially in eastern Idaho) are still being initiated. Thus far, no potato psyllids have been found in any samples from potato fields; however, this week one adult potato psyllid and numerous psyllid eggs were observed on bittersweet nightshade in Twin Falls. This is not surprising given the apparent ability of psyllids to overwinter in association with this alternative host plant. Next week we will provide access to an online spreadsheet that shows results of the potato field monitoring efforts and location of fields (by county).
More information and resources on potato psyllids and zebra chip can be found at the link below.
» http://extension.uidaho.edu/kimberly/tag/potato-psyllid-and-zebra-chip/
Additional stripe rust reports
Small Grains All Locations
Stripe rust
Posted on: June 5, 2013 by Juliet Marshall
Additional reports of stripe rust in wheat are coming in from Aberdeen, American Falls and the Pocatello area. Chad Jackson (University of Idaho) reported stripe rust in Brundage in the border of research plots on the Research station. Brad Clayson and Ron Ellis report stripe rust on the Fort Hall reservation and near Pocatello and American Falls. Additional reports continue from the Magic Valley. Most reports are of stripe rust in Brundage. If you find stripe rust in other varieties, please let me know. Again, further information is available on our website.
Stripe Rust Update
Small Grains All Locations
Stripe Rust
Posted on: June 5, 2013 by Juliet Marshall
Stripe rust has been reported in Northern Idaho by Doug Finkelnburg in the soft white winter variety 'Brundage' on the University of Idaho's research farm in Moscow, ID. Stripe rust is also confirmed in southern Idaho from the Twin Falls / Filer areas (also in Brundage) and in Declo (also in Brundage). If you are growing a susceptible variety, please scout and spray with fungicides as needed. While visiting fields in the Twin Falls area, many fields (approximately 30%) of winter wheat and winter barley were infected with BYDV. Most of the fields of winter wheat were Stephens. What appeared to be a resistant reaction to stripe rust was visible on many of the flag leaves of Stephens. Please don't assume resistance with be maintained in varieties reported as resistant, as changes can and do occur in the race structure of the stripe rust fungi. Please check our website for additional information, pictures, and fungicide efficacy chart.
cereal leaf beetle
Small Grains Treasure Valley
cereal leaf beetle
Posted on: May 31, 2013 by Jerry Neufeld
I just got from scouting a spring wheat field at the UI Parma R and E Center. There are areas of the field that are experiencing heavy damage from cereal leaf beetle larvae. You may want to keep an eye out for this pest in your spring grain fields.
2ee label for Vydate in potatoes
Potato All Locations
potato psyllid
Posted on: May 29, 2013 by Jerry Neufeld
Attached is the new Vydate®C-LV 2ee label from Dupont for suppression of Zebra Chip disease in potatoes. Click on the pdf below to view the label.
Western Cherry Fruit Fly
Tree Fruits Treasure Valley
Western Cherry Fruit Fly
Posted on: May 29, 2013 by Jerry Neufeld
Click on the pdf below for information about emergence dates for Western Cherry Fruit Fly at various Treasure Valley locations. Jodie Ellis from the Idaho State Department of Agriculture provided this information.
Stripe rust alert
Small Grains All Locations
Stripe rust
Posted on: May 28, 2013 by Juliet Marshall
I have had the first report of stripe rust in Idaho this year in the Hazleton area on Brundage soft white winter wheat. It was first seen 22 May by the pilot for Red Baron, Clay Seamons, and reported to me by Jared Hobson. Clay sent pictures and yes it is stripe rust.
Please scout susceptible varieties!! I will be traveling through the area on Thursday for BYDV scouting and impact assessments, but will also make additional confirmation of stripe rust. If this is the case, I am not surprised given the flow of wind from the south west where stripe rust is consistently an issue in California. It could have blown in from there. The current weather is favorable for infection and spread. winter wheat is heading and fungicides can be sprayed up to 50% flowering. I have a fungicide efficacy chart available at:
http://www.extension.uidaho.edu/scseidaho/
I would love to hear from you if you have additional suspected fields!
potato psyllid identification and trapping workshops
Announcements Treasure Valley
potato psyllid
Posted on: May 28, 2013 by Jerry Neufeld
Just want to remind everyone about the Potato Psyllid trapping and identification workshop from 1 to 3 pm today at the UI Parma R and E Center.
Potato Psyllid trapping and identification workshops will be held across Idaho in late May. There will be a workshop on May 28 at the UI Parma R and E Center, on May 29 at Miller Research in Rupert, and on May 30 at the UI Idaho Falls R and E Center. For more information, including times, click on the pdf below which will bring up the April 19, 2013 edition of the Potato Progress edited by Andrew Jensen.
UI potato psyllid scouting program started
Potato All Locations
potato psyllids and ZC
Posted on: May 24, 2013 by Erik Wenninger
The University of Idaho, in collaboration with Miller Research and several crop consultants across the state, has initiated a scouting program that covers commercial potato fields throughout southern Idaho. The project is funded in part by ISDA. The primary means of sampling psyllids will be by the use of yellow sticky cards, although vacuum samples and leaf samples are being taken from some fields as well. The first traps were deployed during the week of May 13; thus far, no potato psyllids have been found in any samples. Details of the monitoring program and results of monitoring efforts (by county) will be available soon.
Western Cherry Fruit Fly
Tree Fruits Treasure Valley - Idaho
Western Cherry Fruit Fly
Posted on: May 23, 2013 by Jerry Neufeld
The following information was submitted to the PestAlert Network by Jodie Ellis, Program Manager with ISDA.
"On Thursday, May 23rd, seven adult Western cherry fruit flies were found on an ISDA trap near Caldwell (Sunnyslope Road) in Canyon County. If growers observe that their cherries are yellowing, they may wish to start control measures for this pest before oviposition in the fruit begins. Pesticides commonly used for Western cherry fruit fly are carbaryl, malathion, spinosad, Delegate, Imidan, or Asan. Always use pesticides according to label recommendations."
Jodie Ellis
Program Manager
Idaho State Department of Agriculture
Jodie.Ellis@agri.idaho.gov
208.332.8627 (office)
765.543.4533 (cell)
