Lethal dose or lethal concentration classifications do not provide information about chronic, long-term toxic effects. When calculating areas to be treated with pesticides, divide larger areas into smaller sections that are easier to calculate. As an example, the large area below can be divided into squares or rectangles and then figuring the area for each one. Adding these areas together will give you the total area to be treated. Application Tips Use the proper size sprayer or duster for the job at hand.
Smaller equipment is often more useful around home landscapes.
Use the right kind of nozzles. Use separate spray equipment for certain types of weed control work. Many herbicides cannot be completely washed out of the spray tank. Carefully adjust and calibrate equipment. Consider using equipment that is convenient to mount and dismount as well as to operate.