Sex pheromone of the spotted tentiform leaf miner moth Phyllonorycter blancardella (Fabr.) (Lep., Gracillariidae)

Dodecyl acetate (12:OAc) (E)-10-dodecenyl acetate (E10-12:OAc) and (E)-10-d odecenol (E10-12:OH) in the ratio 8:80:12 were collected by solid phase mic ro-extraction of the volatiles emitted by virgin signalling females of the spotted tentiform leafminer moth, Phyllonorycter blancardella. The same com pounds in the ratio 8:79:13 were extracted from the sex pheromone glands of virgin signalling females of the same species. The chemical structures of the compounds were identified by gas chromatography and mass spectrometry. Trapping results obtained from field tests using synthetic components of th e sex pheromone demonstrated that only one component, E10-12:OAc, was essen tial for the attraction of conspecific males and should be considered as a sex pheromone.