| Title: | "Insecticide resistance may enhance the response to a host-plant volatile kairomone for the codling moth, Cydia pomonella (L.)" |
| Author(s): | Sauphanor B; Franck P; Lasnier T; Toubon JF; Beslay D; Boivin T; Bouvier JC; Renou M; |
| Address: | "INRA-PSH, Ecologie de la Production Integree, Site Agroparc, 84914, Avignon Cedex 9, France. sauphano@avignon.inra.fr" |
| DOI: | 10.1007/s00114-007-0222-6 |
| ISSN/ISBN: | 0028-1042 (Print) 0028-1042 (Linking) |
| Abstract: | "The behavioral and electroantennographic responses of Cydia pomonella (L.) to the ripe pear volatile ethyl (2E,4Z)-2,4-decadienoate (Et-E,Z-DD), were compared in insecticide-susceptible and -resistant populations originating from southern France. A dose-response relationship to this kairomonal attractant was established for antennal activity and did not reveal differences between susceptible and resistant strains. Conversely, males of the laboratory strains expressing metabolic [cytochrome P450-dependent mixed-function oxidases (mfo)] or physiological (kdr-type mutation of the sodium-channel gene) resistance mechanisms exhibited a significantly higher response to Et-E,Z-DD than those of the susceptible strain in a wind tunnel experiment. No response of the females to this kairomone could be obtained in our wind-tunnel conditions. In apple orchards, mfo-resistant male moths were captured at significantly higher rates in kairomone-baited traps than in traps baited with the sex pheromone of C. pomonella. Such a differential phenomenon was not verified for the kdr-resistant insects, which exhibited a similar response to both the sex pheromone and the kairomonal attractant in apple orchards. Considering the widespread distribution of metabolic resistance in European populations of C. pomonella and the enhanced behavioral response to Et-E,Z-DD in resistant moths, the development of control measures based on this kairomonal compound would be of great interest for the management of insecticide resistance in this species" |
| Keywords: | "Animals Behavior, Animal Electric Stimulation Flight, Animal Genotype Insecticide Resistance/drug effects/*physiology Insecticides/*toxicity Moths/drug effects/genetics/*physiology Pheromones/*pharmacology Wind;" |
| Notes: | "MedlineSauphanor, Benoit Franck, Pierre Lasnier, Therese Toubon, Jean-Francois Beslay, Dominique Boivin, Thomas Bouvier, Jean-Charles Renou, Michel eng Research Support, Non-U.S. Gov't Germany 2007/02/14 Naturwissenschaften. 2007 Jun; 94(6):449-58. doi: 10.1007/s00114-007-0222-6. Epub 2007 Feb 13" |
