Moths of the Wheat Head Armyworm complex are showing up early this year and in high numbers, according to an integrated monitoring system for insect populations in wheat across eastern Washington conducted at Washington State University. The red cells in the table indicate potential hot spots. In previous years we have not found larvae in fields where the adult count averaged 30 moths. The pheromone draws the moths in from a wide area, so it is a sensitive test. Farmers and crop consultants should start checking fields for larvae by the end of this week (June 12), as they hatch 10 days after moths lay eggs. The Lincoln County, WA, area near Reardan, Davenport, and Edwall appears to be a hot spot. For more information, go to http://smallgrains.wsu.edu/wheat-and-barley-insect-pest-surveys/
The small grains team at Washington State University will be conducting weekly sampling of insect pest populations in wheat and barley fields throughout the dryland region of Washington State in order to alert the small grains industry about the size and location of damaging insect pest populations. The pests include Hessian fly, Aphids, Cereal Leaf Beetle (CLB), Grasshoppers and Wheat Head Armyworm. Next week results from pheromone trapping of wheat midge will be posted.