They proliferate to the point they crowd out other plants beneficial to wildlife and domestic animals. Wildlife and grazing animals do not often eat noxious weeds because of thorns, spines or chemical content. Infestations of noxious weeds are devastating. Quick, effective control is a priority, but it is only possible when there is documentation of infestations. Please watch for these weeds and report any sightings immediately to the cooperative extension service, or state or federal land management agencies.
Noxious weeds affect people in many different ways .