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THE BIOLOGY AND PHEROMONE-BASED MONITORING OF THE DRIEDFRUIT MOTH, VITULA EDMANDSAE SERRATILINEELLA (LEPIDOPTERA: PYRALIDAE)

Published online by Cambridge University Press:  31 May 2012

Cynthia D. Scott ,
M. L. Winston ,
K. N. Slessor ,
G. G. S. King  and
G. G. Grant
Cynthia D. Scott
Affiliation:
Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6
M. L. Winston
Affiliation:
Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6
K. N. Slessor
Affiliation:
Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6
G. G. S. King
Affiliation:
Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6
G. G. Grant
Affiliation:
Forest Pest Management Institute, Canadian Forestry Service, Sault Ste. Marie, OntarioP6A 5M7
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Abstract

In western Canada, three wax-infesting moth species are serious pests of honey bee products, Vitula edmandsae serratilineella Ragonot, Achroia grisella (F.), and Plodia interpunctella (Hübner). The latter two species are found only in the Fraser Valley of British Columbia, while the driedfruit moth (sometimes called the bumble bee wax moth), V. edmandsae, is found throughout western Canada.

Three female-produced pheromone components of V. edmandsae were identified as (Z,E)-9,12-tetradecadien-1-ol, (Z)-9-tetradecen-1-ol, and (Z)-11-hexadecen-1-ol, and field tested. Pheromone baits were used in traps outdoors and in bee equipment storage facilities in the Fraser and Okanagan valleys of British Columbia. The peak indoor trapping period occurred during May in the Okanagan Valley, while catches in indoor traps in the Fraser Valley were negligible throughout the entire trapping period. Catches in outdoor traps peaked during July in both regions. Traps baited with (Z,E)-9,12-tetradecadien-1-ol, alone or in binary combination with (Z)-11-hexadecen-1-ol, were significantly more attractive to male V. edmandsae than all other treatments tested. At one apiary, cumulative moth catch from a trap line 1.0 m from hives was significantly greater than that from a trap line 4.5 m away. The results suggest that a pheromone-based monitoring and control program for V. edmandsae is feasible.

Résumé

Dans l'ouest du Canada, 3 espèces de papillons s'attaquant à la cire causent des dommages aux produits de l'abeille; ce sont Vitula edmandsae serratilineella Ragonot, Achroia grisella (F.), et Plodia interpunctella (Hübner). Ces 2 dernières ne sont trouvées que dans la vallée du Fraser en Colombie Britannique, alors que V. edmandsae est retrouvé partout dans l'ouest canadien.

Trois composantes d'une phéromone produite par les femelles ont été identifiées et testées sur le terrain; il s'agit des (Z-E)-9,12-tetradecadien-1-ol, (Z)-9-tetradecen-1-ol et du (Z)-11-hexadecen-1-ol. Des appâts à base de phéromone ont été placés dans des pièges à l'extérieur et dans des entrepôts d'équipement d'apiculture dans les vallées du Fraser et de l'Okanagan en Colombie Britannique. La période de piégeage maximum à l'intérieur a eu lieu en mai dans la vallée de l'Okanagan, alors que les captures à l'intérieur sont demeurées négligeables dans la vallée du Fraser tout au long de la période de piégeage. Les captures à l'extérieur ont atteint un sommet en juillet dans les deux régions. Les pièges appâtés au (Z,E)-9,12-tetradecadien-1-ol, seul ou en combinaison binaire avec le (Z)-11-hexadecen-1-ol, se sont avérées significativement plus attirants pour les mâles de V. edmandsae que tous les autres traitements testés. A un endroit, le nombre cumulé de papillons capturés le long d'un transect de pièges placés à 1 m des ruches s'est avéré significativement plus élevé que celui d'un transect situé à 4.5 m. Ces résultats indiquent qu'un programme de surveillance et de répression de V. edmandsae faisant usage de phéromones serait réalisable.

Type
Articles
Information
The Canadian Entomologist , Volume 116 , Issue 7 , July 1984 , pp. 1007 - 1013
Copyright
Copyright © Entomological Society of Canada 1984

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