For animal science students, these courses might include animal breeding, reproductive physiology, nutrition, and meat and muscle biology. Food science students take courses such as food chemistry, food analysis, food microbiology, and food processing operations. Crop and soil science students take such courses as plant pathology, soil chemistry, entomology, plant physiology, and biochemistry. Advanced degree programs include classroom and fieldwork, lab research, and independent research. Some states require licenses for people who apply pesticides.
Requirements vary by state.
In general, those who apply pesticides must be at least 18 years old and pass a written exam. Some states require that pesticide applicators take a training course of 16 hours or more. In most states, pesticide applicators must renew their licenses every three years. Workers may need to take courses in order to have their licenses renewed. Contact your State Department of Agriculture for specific information about pesticide licensing.