Chemiotropic behavior of female olive fly (Bactrocera oleae GMEL.) on Olea europaea L
1996
Scarpati, M.L. | Lo Scalzo, R. | Vita, G. | Gambacorta, A.
An interpretation is given of a number of observations on the chemiotropic behavior of Bactrocera oleae in connection with olive maceration water and the fly's return to the olive groves after the first summer rains. To this end, the headspace of both maceration water and leaf leaching water simulating rainfall, were examined. In both cases, the presence of ammonia, which is generally known to attract fruit flies (Diptera, Tephritidae), was detected and, for the first time, in addition to other compounds that are inert for the fly. the presence of styrene was also detected. This aromatic hydrocarbon was found to he a strong attractant. It is shown that both ammonia and styrene are products of the metabolism of microbial flora present on the olive and leaf surface.
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