All pesticides that are sold in Arizona must be registered with the Arizona Department of Agriculture. Pesticide is any substance that prevents, destroys, repells or mitigates any pest, is a plant regulator, defoliant or dessicant. So as you can see the term pesticide is a general term that includes herbicides, fungicides, insecticides, rodenticides, antimicrobials etc. All agricultural use pesticides must also be reviewed by Arizona Department of Environmental Quality before they can be registered for use by the Arizona Department of Agriculture. In addition all 25(b) FIFRA exempt products must also follow the same registration process in Arizona.