Stathmooda masinissa is one of the most serious lepidopteran pests which damaging the furit of persimmon. Its pheromone composition has been idetified as (E4,Z6)-4,6-hexadecadienyl acetate (E4,Z6-16Ac) and (E4,Z6)-4,6-hexadecadien-1-ol (E4,Z6-16OH). We evaluated electrophysiological response of (E4,Z6)-4,6-hexadecadienal (E4,Z6-16Ald) and attractivenss of E4,Z6-16Ald by combination of two pheromone components. E4,Z6-16Ald evolked electrophysiological responses as same to that of two pheromones. The lure combined with E4,Z6-16Ald and two pheromone components attracted more male S. masiissa.

The sex pheromone of Stathmopoda masinissa (Lepidoptera: Stathmopodidae) [감꼭지나방], an important pest of persimmon in Korea, was studied. Two pheromone components which known from Japanese population were detected in the gland extracts of females by mass spectral analysis of the gland extracts and comparisons of retention time with authentic compounds. Those were (E4,Z6)- 4,6-hexadecadienyl acetate (E4,Z6-16Ac) and (E4,Z6)-4,6-hexadecadien-1-ol (E4,Z6-16OH) in the ratio of 10:90. In a persimmon orchard, a single compound of E4,Z6-16Ac and E4,Z6-16OH was attractive to S. masinissa. However, the mixture of E4,Z6-16Ac and E4,Z6-16OH (1:1) caught significantly more males than each single component. In addition, the traps baited with E4,Z6-16Ac attracted significantly more Oedematopoda ignipicta (Lepidoptera: Stathmopodidae) [붉은꼬마꼭지나방] than control. These results suggest that both of the E4, Z6-16Ac and E4,Z6-16OH are needed to attract S. masinissa