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PHEROMONE TRAPS FOR MONITORING MOTH (LEPIDOPTERA) ABUNDANCES: EVALUATION OF CONE-ORIFICE AND OMNI-DIRECTIONAL DESIGNS

Published online by Cambridge University Press:  31 May 2012

D. L. Struble
D. L. Struble
Affiliation:
Research Station, Agriculture Canada, Lethbridge, Alberta TlJ 4B1
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Abstract

Directional cone-orifice traps were suitable for monitoring population densities of five Lepidoptera species, provided the captured moths were removed from the traps on a regular basis of at least once a week throughout the flight period. Omni-directional traps with circular screen barriers in the entrance area and a slow-release insecticide in the receiver to kill the captured moths functioned well over extended periods of unattended use. These traps would be useful for monitoring and mass trapping purposes. Similar traps without the circular screen barriers were less efficient but, due to their simplicity, they would also be suitable for monitoring purposes. The optimum quantity of pheromone per dispenser was the same for the directional cone-orifice and omni-directional traps.

Résumé

Des pièges coniques directionnels se prêtent à l'étude des densités de population de 5 espèces de Lépidoptères pourvu que les papillons capturés soient retirés des pièges régulièrement au moins une fois par semaine pendant toute la période de vol. Des pièges omnidirectionnels munis de barrières grillagées à l'entrée et d'un insecticide à libération lente dans le réceptacle pour tuer les papillons capturés fonctionnent bien et longtemps sans entretien. Ces pièges seraient utiles à des fins de surveillance et de piégeage massif. Des dispositifs analogues, mais sans les barrières, sont moins efficaces mais, en raison de leur simplicité, conviendraient également à des fins d'étude et de surveillance. La quantité optimale de phéromone par distributeur est la même pour les deux types de piège.

Type
Articles
Information
The Canadian Entomologist , Volume 115 , Issue 1 , January 1983 , pp. 59 - 65
Copyright
Copyright © Entomological Society of Canada 1983

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