USDA Animal and Plant Health Inspection Service

The APHIS Federal noxious weed program is designed to prevent the introduction into the United States of nonindigenous invasive plants. APHIS noxious weed activities include exclusion and permitting and (in cooperation with other agencies and state agencies) integrated management of introduced weeds, including biological control.The Weed Program Mission Statement: APHIS will use science-based methods to prevent the introduction of parasitic-plant pests and Federal noxious weeds (including those already regulated and candidates for regulation) into the United States.Biological Control Program Information.