Tenn. Code Ann. § 54-5-133: Eradication and control of noxious weeds

The commissioner shall adequately eradicate or control, or both, by chemical or other means, noxious weeds growing on state highway rights-of-way whenever areas adjacent to the rights-of-way are determined by the commissioner of agriculture, in accordance with § 43-1-106 , to be row crop areas or grassland areas.