Sec. 203. "Pest or pathogen", for purposes of IC 14-24, means:
(1) an arthropod;
(2) a nematode;
(3) a microorganism;
(4) a fungus;
(5) a parasitic plant;
(6) a mollusk;
(7) a plant disease; or
(8) an exotic weed;
that may be injurious to nursery stock, agricultural crops, other vegetation, natural resources, or bees.