A professional who supervises and coordinates activities of exterminators engaged in destroying vermin with insecticides, rodenticides or fumigants. Respnsibilities include:

• Inspects infested structure and recommends treatment, basing diagnosis on knowledge of pests' habits, fumigants, rodenticides and insecticides, and structural conditions.
• Directs exterminators in type of chemicals to use and locations to be treated.
• Advises building owners on preventive measures against reinfestation.
• May spray or apply insecticides, rodenticides or fumigants and perform duties as described under exterminator.