We evaluated the impact of olfactory and visual competition from apple trees on plum curculio responses to traps baited with synthetic fruit volatiles and pheromone by deploying identical trapping regimes in a grassy field and an unsprayed apple orchard. Plum curculios used in these mark-release-recapture studies were collected from unsprayed fruit trees and held within the laboratory until release; all were marked with a small dot of paint on their elytra to distinguish sex and release site. Prior to release, plum curculios were starved for 24 h and chilled for 15-20 minutes on ice to prevent escape responses. The number of plum curculios captured in traps was recorded daily for 4 days following each release. Trap positions were rotated prior to subsequent releases.
Species 1: Coleoptera Curculionidae Conotrachelus nenuphar (plum curculio)
Keywords: weevil
The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA