A "noxious weed" is a plant propagated by either seed or vegetative parts and determined to be injurious to public health, crops, livestock, land or other property.  Most noxious weeds are perennial, hard to control, and not native to the region.  Control measures vary depending on the weed and area it is growing.  Control measures include mowing prior to flowering, cultivation, herbicide application and bio-control agents.  Contact your Extension agent, crop consultant  or the Weed Control Officer to develop a control plan for your weed situation.