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Wireworm Webinar Offered to Idaho& Washington Wheat Growers

2/15/2012

The Idaho Wheat Commission and the Washington Grain Commission will be presenting a web-based grower education seminar (webinar) on wireworm identification, damage and solutions.  

The webinar will be approximately one hour.  Participation is simple and free!  Log onto the website at http://connect.cals.uidaho.edu/wheat (requires Adobe Flash Player which is installed on most computers) and enter your name as a participant.

Friday, February 24, 8:00 a.m. MST – Guest Presenter Aaron Esser, Washington State University Extension will update participants on the latest research, scouting methods and appropriate grower response to the pest.

Wireworm populations and crop damage have been increasing in wheat (Triticum aestivum L.) production across eastern Washington and Idaho. Today nearly all spring cereal crop acres are treated for wireworms with neonicotinoid insecticides such as Cruiser® (thiamethoxam) or Gaucho® (imidacloprid). Neonicotinoids are toxic to wireworms but at sub-lethal doses, or in other words they repel or provide only seedling protection.

The webinar presented by Mr. Esser will focus on how to improve grain yield and profitability under wireworm pressure and reduce wireworm populations in the soil.

Esser will discuss his research on a series of large-scale on-farm tests (OFT) which were initiated in 2008 examining varied rates of Cruiser insecticide and a series of OFT examining a very high labeled rate of Gaucho insecticide to reduce wireworm populations in the soil. A series of small plot insecticide treatments have also been initiated examining multiple products with potential for control.

For those who cannot view the webinar in real time, it will be recorded and available at: www.idahowheat.org.

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Idaho Annual Crop Production
Winter wheat acres planted in Idaho are estimated at 760,000 acres, down 20,000 acres from last year. Harvested area is forecast at 720,000 acres, down 1 percent from 2014.

Idaho spring wheat planted acres increased from 480,000 acres in 2014 to 570,000 acres in 2015.

All Wheat stored in all positions on June 1, 2015 totaled 18.5 million bushels in Idaho, up from 13.4 million bushels a year ago. Off-farm stocks were up 9 percent, while on-farm stocks were up 243 percent compared to the previous year.