Toxicity of Selective Insecticides against <i>Trichogramma chilonis</i>

Abstract

Entomotoxic potential of selective insecticides against Trichogramma chilonis Ishii was performed at the Toxicology Laboratory of Entomological Research Institute, Ayub Agriculture Research Institute (AARI), Faisalabad. Six insecticides viz., spinetoram, lufenuron, chlorantraniliprole, indoxacarb, flubendiamide and emamectin benzoate were tested against Trichogramma chilonis. After 3 and 24 hours of exposure to immature and adult stages of T. chilonis the observations were made. Egg card and dipped surface residue bioassays were used, to determine the mortality rate of immature and mature life stages of T. chilonis, respectively. The treatments flubendiamide, chlorantraniliprole, indoxacarb, and lufenuron are found relatively safe, whereas spinetoram and emamectin benzoate showed a high level of toxicity. After four hours, chlorantraniliprole and lufenuron showed low toxicity, flubendiamide and indoxacarb demonstrated moderate toxicity, while spinetoram and emamectin benzoate demonstrated significant toxicity for adults.