Suppression and Eradication Programs

​Gypsy moth

2016 Asian and European gypsy moth eradication project proposal for Northwest Portland 

The Oregon Department of Agriculture (ODA) and other state and federal cooperators caught two Asian gypsy moths (AGM) and 12 European gypsy moths (EGM) in the state in 2015:

  • Port of Portland Terminal 4 area in St. Johns, 1 AGM moth
  • Forest Park, 1 AGM moth
  • Portland Metro/Tri-county area, 5 EGM moths
  • Grants Pass, 7 EGM moths

In October 2015 the USDA Asian Gypsy Moth Technical Working Group held several meetings to discuss the Asian gypsy moth trap catches in Oregon and Washington. An Asian and European gypsy moth eradication proposal is being developed for the Northwest Portland area in 2016. According to the proposal, approximately 8,674 acres would be treated with an aerial application of a biological pesticide Bacillus thuringiensis kurstaki in the spring of 2016 to eradicate the Asian and European gypsy moth infestation. Delimitation traps will be placed in 2016 to monitor the success of the eradication and to pinpoint any remaining populations. 

​Gypsy moth resources

2015 Oregon Gypsy Moth Detection Map


2016 Proposed Asian and European Gypsy Moth Eradication Boundary

Google Map

Asian Gypsy Moth: Threat and Opportunity 2016


B.t.k. Information from the National Pesticide Information Center (NPIC)

YouTube Video

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

Gypsy Moth: A Destructive Forest Pest


News Release: Proposed Asian gypsy moth eradication project


Report from the Technical Working Group in Response to the Asian Gyspy Moth Captures (Washington-Oregon 2015)


Support Letter from the Northeastern Area Association of State Foresters for the 2016 AGM Eradication



Japanese​​ beetle

2016 Proposed Japanese beetle eradication project at PDX and vicinity

The Oregon Department of Agriculture trapped four Japanese beetles in 2015, all at PDX and vicinity:

  • Airtrans Center, 2 beetles
  • Air Cargo Rd, 1 beetle
  • 47th Ave, 1 beetle

This compares with 13 beetle catches in 2014 and 25 beetle catches in 2013.​

ODA proposes to conduct an eradication program at the Airtrans Center and 47th Ave:

  • ​One application of Acelepryn targeting the grub stage of the beetle are planned for May, 2016. No foliar sprays are planned.

​​Japanese beetle resources

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

Tempo: Pesticide Information Profile

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


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 2015 Oregon grasshopper survey season showed a continuing increase in the grasshopper population which had been declined through 2013 from a high in 2011. An estimated 2.4 million acres across eastern Oregon were found to be economically infested. ODA and USDA-APHIS did not participate in any control efforts during 2015, though from various informal reports we believe there were several programs for treating privately held land.​​

Grasshopper resources​​​​​​​​​​

Grasshopper & Mormon Cricket information-USDA


Grasshopper Report

Grasshopper Report Summary (full) Document

Grasshopper Report Summary

Grasshopper Report Summary (brief) Document



Gypsy Moth and Japanese Beetle

Barry Bai
Insect Pest Prevention & Management
Phone: 503-986-4645
Clinton Burfitt
Program Manager
Insect Pest Prevention & Management
Phone: 503-986-4663


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