Agriculture; noxious weeds; poison hemlock; Kudzu; fines; counties; state agencies; effective date.

HB 1551 designates poison hemlock and Kudzu as noxious weeds in Oklahoma, requiring landowners to treat or eradicate them annually to prevent seeding. It directly affects all landowners (private, county, and state agency properties), with counties and state agencies also required to manage infestations on their lands. Key mechanisms include annual inspections by the State Department of Agriculture, mandatory public notices about the weed requirements, and fines up to $1,000 per day for non-compliance. The bill amends Oklahoma law to add these plants to the noxious weed list and mandates annual statewide surveys by Oklahoma State University.