Tex. Agric. Code § 76.002
The department shall determine what organisms constitute pests for purposes of this chapter and may include in the list of pests:
Acts 1981, 67th Leg., p. 1190, ch. 388, Sec. 1, eff. Sept. 1, 1981.
Amended by Acts 1997, 75th Leg., ch. 1369, Sec. 1, eff. Sept. 1, 1997.