Noxious weeds are especially problematic weeds.
Most states also have their own noxious weed laws.
The goal of this Bulletin 866-98 is to aid in the identification of Ohio's noxious weeds. Ohio has several laws governing weed control. For a brief guide to these laws, see page 23. According to Ohio regulations, county and township officials may regulate noxious weeds on private property and public roadways. Authorities may issue a written notice to eradicate noxious weeds which are spreading or about to set seed.