Chlorinated hydrocarbons are a group of synthetic organic compounds with one or more chlorine atoms. Chlordane, dieldrin, and DDT are examples. Organophosphates are synthetic compounds containing phosphorous. Carbamates are synthetic compounds of salts or esters of carbamic acid. Carbaryl and propoxur are examples.
Botanicals are pesticides of plant origin.
Pyrethrums and rotenone are examples. Synthetic pyrethroids, such as resmethrin, are similar in action to pyrethrum. D-phenothrin is another example. Application may be directly to the pest's natural food, mixed with baits, or sprinkled in runways so pests will take the compound into the mouth when cleaning contaminated appendages. They include residual surface sprays that kill peat coming in contact with the treated area and aerosols or apace sprays that kill after contact with the body surface.