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What are noxious weeds?
Not all weeds are noxious weeds. Noxious weeds are non-native
plants that have been legally designated as serious pests because they
cause economic loss and harm the environment. Currently, there are
118 weeds on Oregon’s Noxious Weed List. The introduction and
spread of noxious weeds have become a biological
emergency negatively impacting Oregon’s natural resources.

The Scope (History of HB 2118)
At the direction of the of the 70th Oregon Legislative Assembly in
1999, House Bill 2118 instructed the Oregon Department of
Agriculture (ODA) and the Oregon State Weed Board (OSWB) to
assemble a working group to implement an impact study, evaluate
weed control programs, and provide recommendations to address the
impacts of invasive noxious weeds. A working group representing
interests from agriculture, forestry, counties, state and federal
agencies, tribal governments, conservation groups, and members of
the public contributed and provided direction to this strategic plan. As
part of the process, Oregon State University, through the Oregon
Agriculture Research Foundation, conducted an economic study to
assess the present and potential impacts of 21 of the 99 state-listed
noxious weeds.
Layout of the Plan
This plan is divided into three sections.
Section one provides background information; this includes a
national and state perspective and current management roles and
Section two reviews current trends in noxious weed management.
Section three provides a framework of recommendations for
effective management of noxious weed programs.