|Prokopy, Ronald J. - DEPT OF ENT. UMASS|
Submitted to: European Journal of Entomology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: March 3, 2003
Publication Date: N/A
Technical Abstract: We conducted laboratory experiments to elucidate the influence of barometric pressure on olfactory discrimination and oviposition and feeding behavior of adult female plum curculios, Conotrachelus nenuphar (Herbst). Olfactory discrimination of hexane-extracted McIntosh fruit volatiles was high when barometric pressure was high; Response Index values used as a measure of olfactory discrimination were significantly and positively correlated with barometric pressure. Females oviposited more eggs during periods of low barometric pressure; nearly significant negative correlations were observed between female oviposition activity and barometric pressure. Observed feeding activity of females was independent of barometric pressure.