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Adult Mortality of Grapholita molesta (Busck) from Combined Application of Azadirachtin and Beauveria bassiana (Balsamo) Vuillemin in Laboratory Evaluation
The oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae) is a major pest of apple, peach, and plum in Korea. As a series of experiment we assessed effect of combined application of an entomopathogenic fungi (Beauveria bassiana ARP-14) and a botanical insecticide (azadirachtin) against male and female of adult G. molesta (<5 days old) in glass scintillation vials. LT50 value of combined application of ARP-14 and azadirachtin (51.9 h) was larger than that of positive control λ-cyhalothrin (34.4 h) in adult female G. molesta. But, adult male G. molesta didn't show any statistical difference between the combined application (34.2 h) and λ-cyhalothrin (44.1). Thus, combined application of ARP-14 and azadirachtin can be an optional management tactic against G. molesta.
