Sex pheromone of oriental armywormMythimna separata Walker.

In the mainland of China, the male Oriental armyworm was not attracted to the sex pheromone components (Z)-11-hexadecenyl acetate and (Z)-11-hexadecenol identified by Takahashi et al. in 1979. By means of EAG, GC, and GC-MS techniques, (Z)-11-hexadecenal, hexadecenal, and (Z)-11-hexadecenol were found in female gland washings, and encouraging captures were obtained in preliminary field trapping.