Suppression and Eradication Programs

​Gypsy moth

The Oregon Department of Agriculture (ODA) caught four European gypsy moths in 2014 at a site near Grants Pass. Extra traps were placed at this site in 2015, but there will not be an eradication. Detection traps will be placed throughout many parts of the state beginning in May 2015.

Japanese​​ beetle

Japanese beetle eradication project at PDX and vicinity for 2015

IPPM trapped 13 Japanese beetles in 2014, all at PDX and vicinity:

  • Airtrans Center, 12 beetles
  • Air National Guard Base, 1 beetle
IPPM will conduct an eradication program at the Airtrans Center:

  • ​May 13, 2015: One application of Acelepryn targeting grub stage of the beetle. No foliar sprays are planned at this site in 2015​.


Grasshopper suppression

Oregon participates in a federal program to monitor, and suppress when necessary, grasshoppers and Mormon crickets. Even though not all grasshopper species are pests, outbreaks can vary in their magnitude and geographic expanse. Early intervention can dampen the severity of an outbreak cycle.

Grasshopper survey report

The 2014 Oregon grasshopper survey season showed a slight rebound in the grasshopper population which had been declining from a high in 2011. Approximately 1.03 million acres across eastern Oregon were estimated to be economically infested.  ODA and USDA-APHIS did not participate in any control efforts during 2014, though from various informal reports we believe well over 21,000 acres were privately treated.​ ​​


Grasshopper & Mormon Cricket information-USDA


Grasshopper Density Map


Grasshopper Report

Grasshopper Report Summary (full) Document

Grasshopper Report Summary

Grasshopper Report Summary (brief) Document

Gypsy Moth Eradication Program Overview

Basic information about gypsy moth eradication Document

Gypsy Moth in Oregon

Yearly summary report for Oregon's gypsy moth trapping and eradication program Document

Imidacloprid Technical Fact Sheet

Information on Imidacloprid from the National Pesticide Information Center. Document

Japanese Beetle in Oregon

Yearly summary report for Oregon's Japanese beetle trapping and eradication program Document

Japanese Beetle: A Major Pest of Plants


Oregon Pest Alert: Old House Borer

Description and information about old house borer. Document

Tempo: Pesticide Information Profile

Cyfluthrin is the active ingredient in many insecticide products including Tempo and Tempo H. Website



Gypsy Moth and Japanese Beetle

Barry Bai
Insect Pest Prevention & Management
Phone: 503-986-4645


Paul Blom
Insect Pest Prevention & Management
Phone: 503-508-1253
Insect Pest Prevention & Management
Phone: 503-986-4636