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通过野外观察、室内生测和毛细管气相色谱测定得知：杨扇舟蛾成虫多在１５～１７时羽化，当日天黑后２１时３０分开始活动，２３时至次日１时为活动高峰期，至凌晨４～５时停止活动。室内黑暗处理后１．５小时成虫即呈性兴奋状态，到４小时达到高峰，８小时后停止活动。成虫释放性信息素的高峰日为羽化后第２天，第３天则大幅度减弱。林间诱捕可用水盆或平板型诱捕器，悬挂高度１．５～２ｍ，诱芯可用活雌蛾或３０ＦＥ以上浓度的粗提物。该项技术可广泛应用于对杨扇舟蛾种群动态的监测，亦可在虫口密度较低的林分直接用于防治
Through field observation, indoor bioassay and capillary gas chromatography, it was found that the adults of A. nymphaea emerged more in the period of 15-17, started their activity at 21:30 on the day of darkness, peaked at 23:00 and 1:00 of the next day, To 4 o’clock in the morning to stop activities. 1.5 hours after the indoor darkness, the adult was excited, reaching a peak in 4 hours and stopped after 8 hours. The peak day of release pheromone of adult was 2 days after eclosion, but the 3rd day was greatly weakened. Forest trap can be used basin or flat-type traps, hanging height 1.5 ~ 2m, induced live female moths or 30FE concentration above crude extract. This technique can be widely applied to the monitoring of the population dynamics of the larvae of Helicoverpa armigera. It can also be directly used in the control of lowland density population