RESUMEN
Mass spectrometric investigations confirmed the structure of the female produced sex pheromone of the horse-chestnut leafminer Cameraria ohridella Desch. and Dim. to be (8E,IOZ)-8,10-tetradecadienal. Pure samples, prepared in a straightforward synthesis, were highly attractive in field tests and proved to be suitable for monitoring of flight activities and population dynamics. In mixtures with the synthetic pheromone, analogues like 9-tridecynal and 7-dodecynyl formate were shown to reduce trap catches. In electroantennographic experiments, pheromone analogues were less active than the pheromone. 9-Tridecynal was the most EAG active analogue tested, followed by 7-dodecyn-1-yl formate and 7-undecyn-1-yl formate.
Asunto(s)
Aldehídos/farmacología , Mariposas Nocturnas/fisiología , Atractivos Sexuales/química , Animales , Cromatografía de Gases , Femenino , Modelos Moleculares , Estructura Molecular , Mariposas Nocturnas/efectos de los fármacos , Hojas de la Planta/parasitología , Atractivos Sexuales/aislamiento & purificación , Atractivos Sexuales/farmacología , Relación Estructura-ActividadRESUMEN
A female produced sex pheromone of the leaf-miner pest Phyllonorycter platani (Staudinger) (Lepidoptera: Gracillariidae) was identified as (Z10)-tetradecenyl acetate. Field trapping trials confirmed activity of this compound. The presence of the geometrical isomer (E10)-tetradecenyl acetate, a pheromone component of other Phyllonorycter species, reduced trap efficacy.