Noxious weeds are non-native plants introduced to Washington through human actions. Because of their aggressive growth and lack of natural enemies in the state, these species can be highly destructive, competitive or difficult to control. These exotic species can reduce crop yields, destroy native plant and animal habitat, damage recreational opportunities, clog waterways, lower land values and poison humans and livestock.
Noxious weeds affect everyone. Weeds do not obey property lines or jurisdictional boundaries. It takes a coordinated effort to prevent new noxious weeds from establishing and to control and eradicate the weeds already here. The noxious weed law provides a tool to quickly and effectively stop the spread of the new and most damaging weeds. Early Detection and Rapid Response is the ultimate goal.
The Washington Administrative Code (WAC) contains the rules and regulations needed to carry out the state law.