Sex pheromone of Acrolepiopsis nagaimo Yasuda (Lepidoptera : Acrolepiidae), a predominant leafminer on Chinese yam in Tottori Prefecture: identification and field attraction

Three EAG-active components were detected in the GC-EAD analyses of the hex ane extracts of abdominal tips from virgin females of Acrolepiopsis nagaimo Yasuda (Lepidoptera: Acrolepiidae). These components were identified as (Z )-11-hexadecenyl acetate (Z11-16:Ac), (Z)-11-hexadecenal (Z11-16:Ald) and ( Z)-11-hexadecen-1-ol (Z11-16:OH) at 1.8, 0.6, and 0.2 ng:female, respective ly, by subsequent GC-MS analyses and chemical derivatization. In a field te st conducted at Daiei-cho, Tottori in 1998, more males were captured with b lends of Z11-16:Ac and Z11-16:Ald (0.1 mg/septum) at ratios of 50:50 and 75 :25 than with two 2- to 3-d-old virgin females while the effect of an addit ion of Z11-16:OH to the blends was unclear.