In spite of these characteristics, rotary nozzles have not been widely accepted. Due to the lack of reliable data about the effectiveness of chemicals at reduced rates, chemical companies do not accept responsibility for their products if the recommended rates are not used. At this time, there are not many independent reports which indicate that chemicals, when applied by rotary nozzles at reduced rates, are as effective as they are when applied by conventional hydraulic nozzles. More research is needed, and is underway, to evaluate the performance of controlled droplet applicators. Research from various universities indicates that while reduction in drift can be achieved due to more uniform droplets, rotary nozzles have shown some susceptibility to pattern distortion from the wind.
Many pesticides are so toxic that exposure to even a small amount can kill and adult.
Children can succumb to less. Minimize any kind of oral, dermal, or inhalation exposure to chemicals. Below are just a few safety precautions. Read the sprayer operator's manual and chemical labels to review recommended procedures for safe use of chemicals and the equipment. Never allow them to play in pesticide-treated fields or in areas where the chemicals may be spilled.