| Title: | EAG Responses of Adult Lobesia botrana Males and Females Collected from Vitis vinifera and Daphne Gnidium to Larval Host-Plant Volatiles and Sex Pheromone |
| Author(s): | Perez-Aparicio A; Torres-Vila LM; Gemeno C; |
| Address: | "Department of Crop and Forest Sciences, University of Lleida, Av. Alcalde Rovira Roure 191, 25198 Lleida, Spain. alicia.perez@udl.cat. Servicio de Sanidad Vegetal, Consejeria de Medio Ambiente y Rural PAyT, Junta de Extremadura, Avda. Luis Ramallo s/n, 06800 Merida, Badajoz, Spain. Department of Crop and Forest Sciences, University of Lleida, Av. Alcalde Rovira Roure 191, 25198 Lleida, Spain. cesar.gemeno@pvcf.udl.cat" |
| ISSN/ISBN: | 2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking) |
| Abstract: | "We analysed electroantennogram (EAG) responses of male and female adults of the European grapevine moth Lobesiabotrana (Denis et Schiffermuller) (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)-beta-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)-beta-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" |
| Keywords: | Tortricidae electroantennogram host plant sex volatiles; |
| Notes: | "PubMed-not-MEDLINEPerez-Aparicio, Alicia Torres-Vila, Luis M Gemeno, Cesar eng AGL2016-77373-C2-2-D/MEYC/ Switzerland 2019/09/05 Insects. 2019 Sep 2; 10(9):281. doi: 10.3390/insects10090281" |
