Université de Neuchâtel

Identification of host-plant chemical stimuli for the European grape berry moth Eupoecilia ambiguella

Schmidt-Büsser, Daniela ; von Arx, Martin ; Connétable, Sophie ; Guerin, Patrick M.

In: Physiological Entomology, 2011, vol. 39, no. 2, p. 101-110

Olfaction is of major importance for survival and reproduction in moths. Males possess highly specific and sensitive olfactory receptor neurones to detect female sex pheromones. However, the capacity of male moths to respond to host-plant volatiles is relatively neglected and the role that such responses could play in the sensory ecology of moths is still not fully understood. The present study...

Université de Neuchâtel

Plant Volatiles Enhance Behavioral Responses of Grapevine Moth Males, Lobesia botrana to Sex Pheromone

Von Arx, Martin ; Schmidt-Büsser, Daniela ; Guerin, Patrick M

In: Journal of Chemical Ecology, 2012, vol. 28, no. 2, p. 222-225

Plant volatiles play an important role in the lives of phytophagous insects, by guiding them to oviposition, feeding and mating sites. We tested the effects of different host-plant volatiles on attraction of Lobesia botrana males to the female-produced sex pheromone, in a wind tunnel. Addition of volatile emissions from grapevines or individual plant volatiles to pheromone increased the...

Université de Neuchâtel

Host plant volatiles serve to increase the response of male European grape berry moths, Eupoecilia ambiguella, to their sex pheromone

Schmidt-Büsser, Daniela ; von Arx, Martin ; Guerin, Patrick M.

In: Journal of Comparative Physiology A, 2009, vol. 195, no. 9, p. 853-864

The European grape berry moth is an important pest in vineyards. Males respond to the female-produced sex pheromone released from a piezo nebulizer in a dose-dependent manner in a wind tunnel: <50% arrive at the source at 5–50 pg/min (underdosed), 80% arrive at 100 pg/min to 10 ng/min (optimal) and <20% arrive at 100 ng/min (overdosed). Males responding to overdosed pheromone show in flight...