A professional who inspects fields to detect presence of noxious insects and plant diseases, applying knowledge of identifying characteristics of insects and diseases. Respnsibilities include:

• Walks through fields, following standard sampling patterns, and examines plants at periodic intervals to detect presence of insects or diseases.
• Counts numbers of insects on examined plants or number of diseased plants within sample area.
• Records results of counts onto field worksheet.
• Collects samples of unidentifiable insects or diseased plants for identification by supervisor.