Soybean aphid, Aphis glycines Matsumura has been identified as a pest of soybean in Korea, Japan, and China. The use of synthetic chemical insecticides is a major option to manage this pest, but the demand for environmental-friendly insecticide is increasing. Entomopathogenic fungus is one of the alternatives which is safe for the environment. In this bioassay, leaf dipping method was used to evaluate Beauveria bassiana (Balsamo) Vuillemin ARP14 and GHA. The mortality of both adults and nymphs was not significantly different between the two fungus strains. However, faster mortality rate in both life stages of aphid was found in ARP14 compared to GHA strain. Also, the mycosis rates of both adults and nymphs were higher in ARP14 than in GHA strain. Our results suggest that B. bassiana ARP14 can be an effective and an environmental-friendly control agent for A. glycines.

• Md. Rasel Raju(Department of Plant Medicals, Andong National University) Corresponding author
• Md. Rajib Hasan(Department of Plant Medicals, Andong National University)
• Seongsik Kim(Department of Plant Medicals, Andong National University)
• Da Yeon Lee(Department of Plant Medicals, Andong National University)
• Un Taek Lim(Department of Plant Medicals, Andong National University)