Piperonyl butoxide is added to these formulations to enhance their insecticidal activity. The risk associated with the use of these products depends on the toxicity of the ingredients and the extent of exposure an individual has to them. The application rates for the active ingredients in the adulticide products are quite low, ranging from 0.0035 to 0.23 pounds per acre. As a result, exposure of the general public to adulticides is likely to be very low. Workers involved in the mixing and application of these products may have a somewhat greater potential for exposure.
Pesticides are inherently toxic.
However, if used properly, the potential for significant exposure to the mosquito adulticides or larvicides is low. Hence, the risk of health effects to the general public is low. They DO NOT cause cholinesterase inhibition. In cases of high exposure, signs and symptoms typical of pyrethroid poisoning may include abnormal facial sensation, dizziness, salivation, headache, fatigue, vomiting, diarrhea, and irritability to sound and touch. In more severe cases, pulmonary edema and muscle fasciculations may occur.