Diel rhythmicity of field responses to synthetic pheromonal or floral lures in the western corn rootworm Diabrotica v. virgifera

Tóth, M. and Törőcsik, GY. and Imrei, Z. and Vörörs, G. (2010) Diel rhythmicity of field responses to synthetic pheromonal or floral lures in the western corn rootworm Diabrotica v. virgifera. Acta Phytopathologica et Entomologica Hungarica, 45 (2). pp. 323-328. ISSN 0238-1249

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Abstract

Western corn rootworm (WCR) ( Diabrotica v. virgifera Le Conte) (Coleoptera, Chrysomelidae) adults were attracted only during daytime hours and showed a bimodal diel activity pattern when responding to the synthetic floral bait in the field. On the other hand, to the synthetic pheromone bait, good responses were recorded apart from daytime hours also well into the night. The present results suggest that in WCR the pheromonal communication channel and the channel connected with feeding (= floral lure) are separated.

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