Association between olfactory sensitivity and behavioral responses of Drosophila suzukii to naturally occurring volatile compounds

Abstract

Drosophila suzukii Matsumura (Diptera: Drosophilidae) is an invasive, destructive crop pest that originated in South East Asia. D. suzukii recently invaded Western countries and is threatening both European and American fruit industries. It is extremely attracted to otherwise undamaged, ripening fruits, unlike most other Drosophila species that attack only decaying or rotten fruits. Recent studies on different insect species showed that several naturally occurring compounds of easy market availability showing deterrent action may be used to supplement mass catches with food traps. Based on these considerations, the aim of the present work was to test the effects of some natural compounds (alone or in the mixture) on the olfactory system of the D. suzukii and the behavioral responses evoked. We measured by electroantennogram (EAG) recordings, the olfactory sensitivity of antennae to increasing concentrations of eugenol, vanillin, menthol, cis-jasmone; eugenol + vanillin, +menthol, +cis-jasmone; vanillin + menthol, +cis-jasmone. In addition, the behavioral responses to the same compounds and mixtures were evaluated. Our electrophysiological results show a dose-response relationship between the EAG amplitudes and the increasing 2 of 14 | CORDA ET AL.

Multi-omics analysis the differences of VOCs terpenoid synthesis pathway in maintaining obligate mutualism between Ficus hirta Vahl and its pollinators

“…The olfactory responses of Mahanarva spectabilis to forage VOCs suggested that menthone, eucalyptol and camphor were all compounds likely to cause loss of attractiveness or repellence ( Silva et al., 2019 ). Menthol exhibited moderate repellent effects on Drosophila suzukii ( Corda et al., 2020 ). Compared with A-phase, the unique decanal in Ficus pumila var.…”

Differences in the Olfactory Sensitivity of Ceratitis capitata to Headspace of Some Host Plants in Relation to Sex, Mating Condition and Population

“…In animals, the ability to identify mating partners, oviposition sites and food sources is strongly influenced by information arising from their chemical senses, olfaction and taste [1][2][3][4][5][6][7][8][9][10][11][12][13]. In both vertebrates and invertebrates-chemosensory performance varies among organisms belonging to the same species, and this diversity depends on age, sex, physiological state, diet, population, habitat and genetic factors [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”