1). To find the effective insecticides and its timing for the control of the bamboo-shoot cutworm, Bambusiphila vulgaris BUTLE R, this experiment was carried out at Tam-Yang in Chula-namdo from May to June in 1963 in Korea. 2). Endrin, Folidol, and Diazinon were more effective than sumithion, Aldrin, and EPN. .B). The best timing of insecticidal spraying was in 5 days after hatching front the eggs. 4). Since this experiment is the result only tried just once, I hope that the same experiment should be repeated several times and consequently effective of killing insects and the best timing for sprinkling insecticides should be also Investigated.