Obtain names and addresses of all witnesses who might testify to the nature of the operation and conditions of the site before and after. If the site is a perennial planting or orchard, examine USDA aerial photographs to check the site's condition in previous years. It is always important to maintain good public relations as a pesticide applicator. Always be courteous. First impressions often are long-lasting.
Calm words help to open future discussion.
Listen to the question. Let the person know you understand the basis for his or her concern. Know what materials are being applied, why they are being applied and what their basic characteristics are. Keep accurate records. Be as informed as possible but do not give information you are not sure of f. Take information.