On large trees, the spray must sometimes reach 70-80 feet. During all phases of preparation, application and cleanup of chemicals for bark beetle control, be sure to observe all rules of pesticide safety. In addition to providing mixing instructions, the label also contains information on dealing with accidental poisoning. Remember, different insecticides may require different tactics. The proper equipment should be worn whenever insecticides are handled, not just when actual applications are made.
Insecticides are more likely to cause poisoning as concentrates than after dilution.
Prevent direct application or drift into areas frequented by people and pets. Do not apply toxicants on or near lakes and streams. Do not spray where honeybee colonies or edible crops could be contaminated. Clean and store equipment properly - Sprayers and holding tanks should be cleaned after use. Care must be taken to prevent pesticides from getting into streams, lakes or wells.