Investigations of Mechanisms of Pheromone Communication Disruption of Choristoneura rosaceana (Harris) in a Wind Tunnel |
| |
Authors: | M. L. Evenden G. J. R. Judd J. H. Borden |
| |
Affiliation: | (1) Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, B.C., Canada, V5A 1S6;(2) Pacific Agri-food Research Centre, Agriculture and Agri-food Canada, Summerland, B.C., Canada, V0H 1Z0;(3) Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, B.C., Canada, V5A 1S6 |
| |
Abstract: | Although atmospheric treatment with synthetic pheromone is used commercially to control several lepidopteran pests, little is known about how mate-finding behavior is altered by this procedure. Mechanisms of disruption of the mate-finding behavior of Choristoneura rosaceana (Lepidoptera: Tortricidae) were examined in wind tunnel bioassays. Male moths were exposed to synthetic sex pheromone or pheromone components prior to or during upwind flight to a calling virgin female. The proportion of males successfully contacting a calling female was reduced only when the synthetic pheromone treatment was presented simultaneously. A synthetic source of the attractive four-component pheromone placed upwind of a calling female was more effective than a less attractive two-component blend in achieving disorientation. Habituation of the central nervous system does not appear to be a significant factor in disruption of mate-finding behavior of male C. rosaceana, as exposure to pheromone prior to the bioassay did not alter the proportion of males that achieved subsequent upwind flight. Disruption of mate-finding behavior of C. rosaceana in a wind tunnel is probably the result of a combination of mechanisms including adaptation of antennal receptors, camouflage of the female-produced plume, and false-trail following which contributed to the additive disruption effect observed with the most attractive four-component pheromone. |
| |
Keywords: | Choristoneura rosaceana pheromone mechanisms mating disruption |
本文献已被 SpringerLink 等数据库收录! |
|