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  • Welcome to the Noxious Weed Control Program at ODA!
    The Noxious Weed Control Program exists within the Plant Division of the Department of Agriculture. The program operates to fulfill part of the Department's mission to protect Oregon's agricultural industry and natural resources by preventing and limiting the spread and impact of invasive exotic plant species (noxious weeds) which displace and compete with native and desirable domestic plant species. These invasive plants affect all Oregonians directly or indirectly through impacts on agricultural and forest economies and on other resources such as fish, wildlife, recreation and overall watershed health.
Current topics Resources

Oregon State Weed Board (OSWB) meets February 19 and 20, 2014 in Salem.  Agenda 

OSWB Announces 2013 Noxious Weed List
Changes to 2013 Noxious Weed List
ODA Plant Pest Risk Assessments
The ODA Noxious Weed Control Program is pleased to announce that the ODA Plant Pest Risk Assessments and the ODA listing process are now available online. As risk assessments for A and T listed species are updated or risk assessments are completed for new species they will be posted.

Visit weedmapper.oregon.gov for weed distribution in Oregon
WeedMapper.org has become Oregon WeedMapper to improve your noxious weed mapping and management capabilities. You can expect a program in which you can access all the same data but with new tools that allow you to work with noxious weed data as never before. The new mapping platform will give you access to layers relevant to weed management such as roads, rivers, Cooperative Weed Management Area boundaries and more in combination with the ability to draw lines and polygons on your maps to be saved, printed or shared. In addition, the data that comprises the entirety of the known weed sites to ODA can now be downloaded for your own use in your Geographic Information Systems.
Statewide Weed Event Calendar
Stay informed of events occurring around the state!
Last update: April 25, 2013

Prevention is key
weed hanging from door
CLEAN: Spread the word not the weed! Clean equipment prevents the spread of noxious weeds.
CLEAN: highways and road systems help prevent the spread of noxious weeds, Oregon Department of Transportation Adopt-A-Highway Program now includes removal of noxious weeds.

Noxious Weed Grant Programs

Oregon WeedMapper
Find the distribution of noxious weeds in Oregon

Local weed control contacts
Noxious weed look-a-likes
To report invasive species call our toll free number or visit Oregon Invasive Species Council.