Grapholita molesta (Busck) (Lepidoptera: Tortricidae) is an important pest of pome and stone fruits, i.e., apple, peach, and plum. We evaluated single or combined application of an entomopathogenic fungi Beauveria bassiana (Balsamo) Vuillemin. ARP14 (1×108 conidia/mL) and a botanical insecticide of azadirachtin (Azatrol, PBI/Gordon Cooperation) (10 mL/L) against first instar larvae (<5 h old) of G. molesta in glass scintillation vial bioassay. Combined use of B. bassiana ARP-14 and azadirachtin showed higher corrected morality of 100% at 8 h than 71.4% in λ-cyhalothrin used as a positive control.

• Young Ha Woo(Department of Plant Medicals, Andong National University)
• Un Teak Lim(Department of Plant Medicals, Andong National University)