Suppression and Eradication Programs

​Light brown apple moth

Light brown apple moth (LBAM) detections

The Oregon Department of Agriculture (ODA) caught 1 light brown apple moth in 2010, 2 in 2015, and 3 in 2016. All moths were caught within a one square mile area south of Independence in Polk County. Catching moths in 2015 and then again in 2016 in the same general area indicates the presence of a breeding population of LBAM. 

2017 Proposed LBAM eradication project south of Independence, Polk County

The proposed eradication program includes:

  • Adult LBAM treatments: Two applications of SPLAT, a mating disruption pheromone, applied by airplane
  • Larval LBAM treatments: Three applications of Bacillus thuriengensis kurstaki (Btk), a biological pesticide​, applied by airplane
  • Delimitation traps placed in the vicinity of the trap catches and detection traps placed statewide.​​

The treatments are tentatively scheduled to begin June 21, 2017.

To receive notifications about the proposed LBAM treatment you may subscribe to our mailing list​.

Light Brown Apple Moth Resources

2017 Proposed Treatment Area Map for the Light Brown Apple Moth

An online map that shows the proposed 2017 LBAM treatment area. Web Map

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

YouTube Video

Director's Decision to Treat Light Brown Apple Moth in Polk County

LBAM treatment: Director's decision

Oregon Health Authority: Btk Insecticide FAQs

Btk FAQs

Oregon Insect Pest Alert: Light Brown Apple Moth

Pest Alert: Light Brown Apple Moth

Polk County Letter of Approval for LBAM Treatment

Polk County Letter of Approval for LBAM Treatment

Product Label for SPLAT

Product Label for SPLAT

SPLAT Frequently Asked Questions


Japanese beetle

2017 Japanese beetle ​detections

The Oregon Department of Agriculture (ODA) has trapped more than 13,000 adult Japanese beetles as of 8/4/2017:

  • Most of the beetles trapped were within the Cedar Mill and Bethany treatment area. Roughly 2% of these beetles were caught just outside of the treatment area, some next to large parking lots and major thoroughfares. The beetles’ high population and mobility (hitch hiking on vehicles and or the movement of landscaping yard debris) from within the area are factors in this spread. ​
  • Several beetles have been trapped inside and near the Portland Airport and Swan Island. 

Spring 2017 Japanese beetle eradication project in Cedar Mill and Bethany

The Acelepryn® G treatment for Japanese beetle has been completed for the season. However, Japanese beetle traps will be used to monitor the beetles until the end of the season (October) in the infested area.

Japanese beetle resources​

2017 Japanese Beetle Treatment Map with Trap Catches

ArcGIS Online map

Acelepryn G® Frequently Asked Questions

Acelepryn G® pesticide product information from Oregon Health Authority. Acelepryn G® FAQs

Draft Japanese Beetle Response Plan

Draft Japanese Beetle Response Plan

Granular Insecticide for JB

Acelepryn® G insecticide label

Help Save the City of Roses from Japanese Beetle

Information about the Japanese beetle, its current status in Portland, the proposed treatment, and resources.

Japanese Beetle Economic Risk Assessment

Japanese Beetle Economic Risk Assessment

Japanese Beetle Frequently Asked Questions

Frequently asked questions about Japanese Beetle

Japanese Beetle in Oregon

Yearly summary report for Oregon's Japanese beetle trapping and eradication program 2016 Summary Report

Japanese Beetle Look-Alikes Guide

A visual guide to Japanese beetle look-alikes

Japanese Beetle: A Major Pest of Plants

Brochure about Japanese Beetle

Japanese Beetle: Threat and Opportunity in Oregon

Japanese Beetle Threat and Opportunity pdf document

Gypsy moth

The Oregon Department of Agriculture, in conjunction with USDA and other federal and state agencies, conducted an eradication program in the North and Northwest Portland area in 2016. Approximately 7,000 acres were treated in April and May with an aerial application of a biological pesticide Bacillus thuringiensis kurstaki to eradicate the Asian and European gypsy moth infestation. To view the area where the treatment took place please see the map link below. 

ODA has completed the trapping program for the 2016 season. We did not detect any gypsy moths in the Portland area, indicating the treatment was a success. However, we caught six gypsy moths in other parts of the state in 2016:

  • Vida, Lane County, 2 gypsy moths
  • Grants Pass, Josephine County, 4 gypsy moths

Detection traps will be placed throughout the state starting this spring. No eradication is proposed. 

​Gypsy moth resources

2016 Asian Gypsy Moth Environmental Assessment (EA)


2016 Asian Gypsy Moth Treatment Map

A map that is frequently updated showing the 2016 AGM treatment progress. ESRI Online Map

Asian Gypsy Moth: Threat and Opportunity 2016


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

YouTube Video

Effects of Aerial Btk on Non-Target Lepidoptera Caterpillars


Gypsy moth awareness video

From the Washington Dept of Agriculture, this video includes 13 ways gypsy moths damage the ecosystem, the economy, and harm people. Also included, how to identify gypsy moth and eradication methods. 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 2016 Summary Report

Gypsy Moth: A Destructive Forest Pest


Invasion of Gypsy Moth Caterpillars in Hanover Township, Pennsylvania


ODA news on gypsy moth

News blog

Oregon Gypsy Moth Detection Map (2015)


Oregon Health Authority: Btk Insecticide FAQs

Btk FAQs

Phenology of Butterflies and Moths in Oregon in relation to Asian Gypsy Moth eradication efforts


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


Support Letter from British Columbia for the 2016 AGM Eradication


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



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