4Credit(s) : 3 Lecture Hour(s) , 3 Laboratory Hour(s) Prerequisite(s):AGRI 10303 and four hours biology from the following: BIOL 10043 and BIOL 10031; or BIOL 20343 and BIOL 20341; or BIOL 20543 and BIOL 20531 Basic principles of plant pathology and entomology and the destructive and beneficial effects of insects and diseases upon agricultural enterprises.