Up to now,seven components of sex pheromone of the cotton bollworm Helicoverpa armigera(Hüber)(Lepidoptera Noctuidae)were identified,they were(Z)-11-hexadecenal(Z11-16:Ald),(Z)-9 hexadecenal(Z9-16:Ald),hexadecanal(16:Ald),(Z)-11-hexadecen-1-ol(Z11-16:OH),(Z)-7-hexadencenal(Z7-16:Ald),(Z)-9-tetradecenal(Z9-14:Ald) and tetradecanal(14:Ald).Sex pheromone lure was made up of two main components Z11-16:Ald and Z9-16:Ald,which had been applied in field for monitoring and controlling the pests for many years.Where...