EAG responses of adult Lobesia botrana males and females collected from Vitis vinifera and Daphne gnidium to larval host-plant volatiles and sex pheromone
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We analysed electroantennogram (EAG) responses of male and female adults of the European grapevine moth Lobesia botrana (Denis et Schiffermüller) (Lepidoptera: Tortricidae) collected as larvae from grapevine (Vitis vinifera L.) and flax-leaved daphne (Daphne gnidium L.). The host-plant odorants tested were either V. vinifera-specific [1-octen-3-ol, (E)-β-farnesene, (E)-4,8-dimethyl-1,3,7-nonatriene], D. gnidium-specific (2-ethyl-hexan-1-ol, benzothiazole, linalool-oxide, ethyl benzanoate), or were shared by both host-plants (linalool, methyl salicylate). Sex pheromone compounds were also tested. The male response to the major pheromone component (E7,Z9-12:Ac) was higher than to any other stimuli, whereas the response to the minor pheromone components (E7,Z9-12:OH and Z9-12:Ac) was not different from the response to the plant odorants. The female response to pheromone was lower or not different from that to plant odorants. Methyl salicylate elicited a higher response in females and (E)-β-farnesene elicited a higher response than several other plant odorants in both sexes. Non-significant interactions between host-plant odorant and sex indicated an absence of sex specialization for host-plant volatile detection. The lack of a significant interaction between plant volatiles and larval host-plants suggested that there was no specialization for plant-volatile detection between V. vinifera and D. gnidium individuals.
Is part ofInsects, 2019, vol. 10, núm. 9, article number 281
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EAG responses of Lobesia botrana males and females collected from Vitis vinífera and Daphne gnidium to host-plant volatiles and sex pheromone compounds [Research data] Pérez-Aparicio, Alicia; Torres-Vila, Luis M.; Gemeno Marín, César (Universitat de Lleida, 2018)We analyzed electroantennogram (EAG) responses of male and female adults of Lobesia botrana (Denis et Schiffermuller) (Lepidoptera: Tortricidae) collected as larvae from the host plants Vitis vinifera L. and Daphne gnidium ...
Plant volatiles challenge inhibition by structural analogs of the sex pheromone in Lobesia botrana (Lepidoptera: Tortricidae) Sans i Badia, Albert; Morán, Miguel; Riba i Viladot, Magí; Guerrero Pérez, Ángel; Roig, Jaume; Gemeno Marín, César (Czech Academy of Sciences. Institute of Entomology of the Biology Centre, 2016)Plant volatiles can synergize the response to moth pheromone. Synthetic pheromone analogs, in turn, have the opposite effect in reducing pheromone attractiveness. To determine how these two types of stimuli interact and ...
Plant volatiles challenge inhibition by structural analogs of the sex pheromone in Lobesia botrana (Lepidoptera: Tortricidae) [Research data] Sans i Badia, Albert; Morán, Miguel; Riba i Viladot, Magí; Guerrero Pérez, Ángel; Roig, Jaume; Gemeno Marín, César (Universitat de Lleida, 2016)We have found that two analogues of the major sex pheromone component of Lobesia botrana significantly reduced the response of males to pheromone in a wind tunnel. A host-plant volatile blend significantly increased male ...