Maruca vitrata larvae feed on flowers and pods of several leguminous crops, and can severely reduce seed yield. Adult emergence, mating and oviposition behaviors were observed in a 15h/9h=light/dark and 25℃ condition as a base study for monitoring. Emergence occurred mainly during the first five hours of scotophase. Mating occurred from the two days after emergence, and the mated females started to lay eggs from the next day. A maximal mating rate was observed in the night of five days. Mating occurred significantly more often during the time from 2 hours before to 3 hours after lights-off, but older females mated more frequently during the photophase. Electroanntennographic responses of males to some chemicals, and body extracts and volatile collections of females were measured

• Jin Kyo Jung(National Institute of Crop Science, RDA)
• Jung Heun Su(Gaia Co. Ltd)
• Young Ho Koh(Ilsong Institute of Life Sciences, Hallym University)
• Bo Yoon Seo(National Institute of Agricultural Science, RDA)
• Yonggyun Kim(Department of Bioresource Sciences, Andong National University)
• Si Woo Lee(National Institute of Crop Science, RDA)