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A REGIONAL SAMPLING NETWORK FOR INSECT PESTS OF POTATO IN THE COLUMBIA BASIN OF WA

Extension Education

Carrie Wohleb
Regional Extension Specialist
Washington State University Extension
Moses Lake

Abstract

\r\n A regional sampling network was established in the Columbia Basin of Washington to provide potato growers with current information about the size and location of important insect pest populations. It functions as an early warning system that prompts growers to intensify scouting in their potato fields when pests are detected in the region. The sampling network targets three key insect pests: green peach aphid (GPA), beet leafhopper (BLH), and potato tuberworm (PTW). Each of these pests should be monitored closely and managed as needed to minimize yield and quality losses that can result from the insects feeding, and in the case of GPA and BLH from the pathogens they transmit to potatoes. In addition to targeted pests, other foliar arthropod pests and insect predators are monitored and reported on when their numbers are significant. Potato fields across the region are monitored weekly from May to October, and results are reported in “potato pest alerts” sent via e-mail to 270 subscribers. The alerts are summary reports with links to further information, including maps showing insect counts across the region, graphs of insect population trends, and IPM recommendations. When subscribers were asked in an online survey how they use the alerts, 90% indicated that they use them to be more aware of insect populations in the region, 68% use them to know when to scout for insects, and 42% use them to learn about IPM strategies for managing pests. This program has increased application of IPM strategies by Columbia Basin potato growers. 

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Poster has NOT been presented at any previous NACAA AM/PIC

This poster is being submitted for judging. It will be displayed at the AM/PIC if not selected as a State winner. The abstract will be published in the proceedings.

A poster file has not been provided

Authors: C.H. Wohleb, A. Jensen, T.D. Waters
  1. Wohleb, C. Extension Educator, Washington State University Extension, Washington, 98823
  2. Jensen, A. Director of Research, Washigton State Potato Commission, Washington, 98837
  3. Waters, T. Extension Educator, Washington State University Extension, Washington, 99301