Survey and Treatment Projects

Eradication playbook

The Insect Pest Prevention and Management Program (IPPM) created an Eradication Playbook​ to document the diversity of activities that have gone into creating successful eradication projects for Asian gypsy moths and Japanese beetles in Oregon.
It also serves as a quick reference field guide for eradication projects.​

Gypsy moth

The Oregon Department of Agriculture, in conjunction with USDA and other federal and state agencies, has proposed to treat a 45-acre area of Corvallis (Benton County) in May 2019. A ground application of the biological pesticide Bacillus thuringiensis kurstaki should eradicate a European gypsy moth population. Gypsy moths were detected in traps in the area in 2017 and 2018. Two applications are proposed for May 2019. 

For more information:
Email the project coordinator, Chris Hedstrom or call 503-986-4654.
Information about the biological pesticide Btk 

USDA has completed an environmental assessment for this project prior to treatment.
The report is available online: USDA's Plant Health Environmental Assessments​

Japanese beetle

2019 Japanese beetle eradication program 

The IPPM program will be beginning the third year of treatment to battle the Japanese beetle in April 2019. We are again asking for residents to consent to allow IPPM to treat their property in the treatment area. 

Residents in the area should see letters with details about the project in the mailboxes starting in late January. These letters will include details about how to fill in your consent form online, as well as a reply envelope to send back a paper consent form.

Residents that consented in the past couple years may receive an email with details for 2019. Consent forms will once again be available online. 

IPPM will be using the same product, Acelepryn G, a granular larvicide that was used in 2017 and 2018. For more information about the program, please visit the JB project website

Thank you for your continued support and cooperation to keep this invasive pest out of Oregon.  

2019 Japanese Beetle Yard debris quarantine

To comply with the quarantine to prevent the spread of both Japanese beetle adults and larvae, all residents, landscapers, and waste managers that work in the yard debris quarantine area must follow the steps below. 

Residential yard debris including grass clippings, plants with soil, and sod must be contained and delivered to Northwest Landscape Services (NLS) (details below). Compost and transfer facilities ARE NOT ALLOWED to accept yard debris from the quarantine area in order to prevent the spread of Japanese beetle. See the online map of the quarantine boundary—the quarantine area is the area outlined in ORANGE on the map. 

If possible, keep yard debris at the property or use a standard curbside yard debris bin.

If yard debris must be removed from the property, bag and cover the load and take it directly to:

Northwest Landscape Services (NLS)
1800 NW Cornelius Pass Rd, Hillsboro, OR
(503) 486-5154

Starting April 1, 2019, hours of operation: 
  • Monday - Friday: 7 am to 5 pm
  • Saturday by appointment
  • Closed Sundays and holidays
This yard debris drop-off site is only available to quarantine residents and their landscapers.​
Quarantined yard debris and material includes:
  • Grass clippings
  • Plants with roots or soil attached
  • Sod or removed turfgrass
  • Growing media (potting soil from raised beds or potted plants, NOT fill dirt)
  • Compost
  • Bulbs or tubers of ornamental plants
  • Mixed loads containing the above material (avoid mixed loads containing garbage and non-plant material)
Yard debris that does not need to be taken to Northwest Landscape Services includes:  
  • Tree limbs or prunings greater than 2 inch diameter (no roots attached)
  • Shrubs prunings or clippings (no roots attached)
  • Fill dirt
  • Wood chips 
  • Lumber or fence boards with dirt attached
  • Non-plant materials such as lumber, cement, gravel, and fencing
  • Materials not on the list of quarantined debris or materials​
Japanese beetle resources​

2020 Japanese Beetle Alerta de Cuarantena por plaga de Insectos (en Español)

Información sobre la cuarentena de desechos del jardín del Condado de Washington en español (2020)

2020 Japanese Beetle Eradication Response Plan

2020 Response Plan for Japanese Beetle Eradication

2020 Japanese Beetle Treatment and Quarantine Map

Japanese beetle treatment and quarantine map

Acelepryn G® Frequently Asked Questions

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

Granular Insecticide for JB

Acelepryn® G insecticide label

Help Save Oregon from Japanese Beetle

Information about Japanese beetle, its current status in Washington County, the proposed treatment, and additional 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 Environmental Assessment (2016)

JB Environmental Assessment

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

Light brown app​​le 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 indicated the presence of a breeding population of LBAM. 

2017 LBAM eradication project south of Independence, Polk County

The eradication project included:

  • 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 treatment area and detection traps placed statewide.​​
All aerial treatments have been completed for 2017. Delimitation trapping will be completed in late October.


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​​​​​​​​​​



Gypsy moth and Japanese beetle

Ashley Toland
Entomologist/Eradication & Pest Response
Insect Pest Prevention & Management
Phone: 503-986-4638
Jessica Rendon
Entomologist/ JB Eradication Specialist
Insect Pest Prevention & Management
Phone: ‭503-871-6133‬


Paul Blom
Entomologist/Eastern Oregon Field Office Survey Coordinator; Grasshopper Program
Insect Pest Prevention & Management
Phone: 503-508-1253

​​General questions

Insect Pest Prevention & Management
Phone: 503-986-4636