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.
Eradication and control of noxious weeds
Tenn. Code Ann. § 54-5-133, under General Provisions.
Tenn. Code Ann. § 54-5-133