Class C Weeds

Each species is already widely established in Washington or is of special interest to the state’s agricultural industry. Placement on the state noxious weed list allows counties to enforce control if locally desired. Other counties may choose simply to provide education or technical consultation to county residents.

Canada thistle, a Class C noxious weed, illustrated the desirability of a law that provides local flexibility. This species is widely established in Washington, and most counties prefer to provide technical consultation to landowners on methods of suppression and control. Enforcement of control is the preferred policy, however, in those counties which have crops grown for certified seed. 

Washington State Noxious Weed List - Class C Weeds