Ceratitis capitata (Diptera: Tephritidae) susceptibility to bait toxic.

Abstract

The aim of this research was to evaluate the susceptibility of C. capitata to insecticides composed of malathion, deltamethrin and spinetoram associated with the food attractants Biofruit®, Cera Trap® and sugarcane molasses. The baits were formulated through mixtures of attractants and insecticides, at the concentration recommended by the manufacturer (C100) and a concentration corresponding to 80% of the recommended concentration (C80). After offering the baits, their toxicity was evaluated depending on the evaluation time. Higher susceptibility rates were found in formulations with malathion at C80, with a LT50 of 1 h, regardless of the attractant used. The baits formulated with spinetoram at C80 reached LT50 after 6 hours. The lowest susceptibility was observed in baits using deltamethrin, regardless of the concentration and attractant used. Toxic baits formulated with malathion and spinetoram remain efficient in controlling C. capitata, even with a 20% reduction in the concentration recommended by the manufacturer for each product and can be formulated with Biofruit®, Trap® Wax and sugar cane molasses without negative compromise of the expected result.