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Identification of female sex pheromone of a plant bug, Adelphocoris fasciaticollis Reuter (Hemiptera: Miridae)
Author(s) -
Zhang T.,
Mei X.,
Zhang L.,
Wu K.,
Ning J.
Publication year - 2015
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/jen.12153
Subject(s) - miridae , biology , heteroptera , hemiptera , sex pheromone , pest analysis , pheromone , toxicology , botany , zoology
The plant bug, Adelphocoris fasciaticollis , has begun to resurge and become a key pest for cotton and alfalfa in northern China, along with the widespread cultivation of Bt cotton. To control this plant bug without pesticides, we attempted to develop a new approach by utilizing sex pheromone. The sex pheromone components from the whole‐body extracts were analysed by GC ‐ MS and gas chromatography–electroantennogram detector analysis (GC‐EAD). (E)‐4‐Oxo‐2‐hexenal and hexyl butyrate, identified as the major components in the extracts of female bugs, elicited strong EAD responses. Field tests indicated that either (E)‐4‐oxo‐2‐hexenal or hexyl butyrate attracted few A. fasciaticollis males and was significantly less active than virgin females and the binary blend. Their ratio was optimized to be 1 : 11. Our results could expand acknowledge of the pheromone of mirids and provide novel approaches to monitor and control this plant bug without pesticides.