Food and Agricultural Code § 11403

“Pest control” means the use or application of any pesticide. It also means the use of any substance, method, or device to do any of the following:

(a) Control pests.

(b) Prevent, destroy, repel, mitigate, or correct any pest infestation or disorder of plants.

(c) Inhibit, regulate, stimulate, or otherwise alter plant growth by direct application to plants.