Pennsylvania Noxious Weed Control Law Statewide

Act 46 of 2017 (Controlled Plant and Noxious Weed Act) and its regulations at 7 Pa. Code Chapter 110 designate noxious weeds like Japanese knotweed, mile-a-minute, and giant hogweed. All landowners must control or eradicate listed plants. The Department of Agriculture enforces statewide and can issue compliance orders. Local governments cannot exempt properties from these baseline state duties.

Failure to control noxious weeds can result in PDA-issued abatement orders; civil penalties up to $500 per violation, with state-conducted control billed to property owner.