Azuki bean beetle (ABB), Callosobruchus chinensis (L.) is a field-to-storage pest of legumes. It is ideal to estimate its field population before it invades the stored legume stuffs. The seasonal occurrence was monitored with rocket traps supplied with synthetic female sex pheromone and with sweep netting during 2015-2016. Harvest damage was evaluated by taking purposive samples of the pods at harvest. Over-wintering stage was identified from the pod samples of left over plants. The results ascertained that October was the peak season of ABB in the azuki bean field. Grain damage and weight loss of the harvested azuki bean were 2.7% and 2.4% respectively, which could be the inoculum for storage loss. The adult emergence only from live pupae collected from pods revealed for its most probable over-wintering stage. In all, this study provides insight into some field ecological parameters of ABB that could be helpful in adopting its management strategies.

• Kashinath Chiluwal(Division of Applied Life Science (BK21+ Program)/ Institute of Agriculture and Life Science, Gyeongsang National University, Korea, Nepal Agricultural Research Council (NARC), Kathmandu, Nepal)
• Junheon Kim(Forest Insect Pests and Disease Division, National Institute of Forest Science, Korea)
• Gwang Hyun Roh(Agroecosystem Management Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Nebraska, United States)
• Soon Do Bae(Department of Southern Area Crop Science, National Institute of Crop Science, Korea)
• Eun Ji Lee(Division of Applied Life Science (BK21+ Program)/ Institute of Agriculture and Life Science, Gyeongsang National University, Korea)
• Chung Gyoo Park(Division of Applied Life Science (BK21+ Program)/ Institute of Agriculture and Life Science, Gyeongsang National University, Korea)