TEST PROTOCOLS AND TOXICITY OF ORGANOPHOSPHATE INSECTICIDES TO CARIBBEAN FRUIT-FLY (DIPTERA, TEPHRITIDAE)

General methods for testing effects of toxicants on Anastrepha suspens a (Loew) (Caribbean fruit fly) are described. We estimated relative to xicities of topically applied methamidophos, malathion, ethion, and ac ephate and orally administered dimethoate, methamidophos, phosdrin, ac ephate, malathion, and chlorpyrifos for a laboratory colony of A. susp ensa. Females were significantly more tolerant to malathion than males by oral administration but not by topical application. Other pesticid es were not differentially toxic to sexes.