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Baited pheromone traps track changes in populations of western blackheaded budworm (Lepidoptera: Tortricidae)

Published online by Cambridge University Press:  02 April 2012

V.G. Nealis ,
P. Silk ,
R. Turnquist  and
J. Wu
V.G. Nealis*
Affiliation:
Pacific Forestry Centre, Canadian Forest Service, Natural Resources Canada, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5
P. Silk
Affiliation:
Atlantic Forestry Centre, Canadian Forest Service, Natural Resources Canada, 1350 Regent Street, Fredericton, New Brunswick, Canada E3B 5P7
J. Wu
Affiliation:
Atlantic Forestry Centre, Canadian Forest Service, Natural Resources Canada, 1350 Regent Street, Fredericton, New Brunswick, Canada E3B 5P7
*
1 Corresponding author (e-mail: Vince.Nealis@NRCan-RNCan.gc.ca).
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Abstract

Pheromone lures for eastern and western blackheaded budworms, Acleris variana (Fernald) and A. gloverana (Walsingham), were synthesized and deployed in traps at locations with decreasing and increasing populations of western blackheaded budworms in British Columbia, Canada. Traps baited with these lures caught comparable numbers of moths at all sites tested in each year. The lures were sensitive to changes in density of budworm populations below observable damage levels, and numbers of moths in traps were strongly correlated with independent estimates of egg densities in the same year. The results confirm the qualitative similarity of the sex pheromones in eastern and western species of blackheaded budworm and demonstrate their utility as a tool for monitoring population trends, including increases in populations to damaging levels.

Résumé

Deux appâts à base de phéromone pour les tordeuses à tête noire de l'épinette de l'est et de l'ouest, Acleris variana (Fernald) et A. gloverana (Walsingham), ont été préparés et déployés en Colombie-Britannique au Canada, dans des pièges situés au sein de sites positifs où les populations de tordeuses sont soit en baisse, soit en augmentation. Le taux de capture des papillons nocturnes avec ces appâts à chaque site est comparable à ceux des sites testés auparavant. Les appâts ont démontré une sensibilité envers les changements en densité de population de tordeuses inférieure au seuil de détection visuelle de niveaux de dommage, ainsi qu'une forte corrélation entre le taux de capture des pièges et l'estimation indépendante de densité des œufs, à l'intérieur de la même année. Les résultats confirment la similarité qualitative des phéromones sexuelles des tordeuses à tête noire de l'épinette de l'est et de l'ouest, et démontrent leur utilisation comme outil de surveillance des tendances des populations, même jusqu'aux niveaux épidémiques.

Type
Articles
Information
The Canadian Entomologist , Volume 142 , Issue 5 , October 2010 , pp. 458 - 465
Copyright
Copyright © Entomological Society of Canada 2010

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References

British Columbia Ministry of Forests and Range. 2010. 2009 Aerial overview survey summary table [online]. Available from http://www.for.gov.bc.ca/hfp/health/overview/2009table.htm [accessed 10 May 2010].Google Scholar
Condrashoff, S.F. 1967. An extraction method for rapid counts of insect eggs and small organisms. The Canadian Entomologist, 99: 300–303. doi:10.4039/Ent99300-3.CrossRefGoogle Scholar
El-Sayed, A.M. 2010. The pherobase: database of insect pheromones and semiochemicals [online]. Available from http://www.pherobase.com [accessed 10 May 2010].Google Scholar
Garbutt, R. 1992. History of important forest pests in the Prince Rupert Forest Region 1914–1991. Report 92-10, Forest Insect and Disease Survey, Pacific Forestry Centre, Victoria, British Columbia.Google Scholar
Grant, G.G., Millar, J.G., and Trudel, R. 2009. Pheromone identification of Dioryctria abietivorella (Lepidoptera: Pyralidae) from an eastern North American population: geographic variation in pheromone response. The Canadian Entomologist, 141: 129–135. doi:10.4039/n09-008.CrossRefGoogle Scholar
Gray, T.G., Shepherd, R.F., Gries, G., and Gries, R. 1996. Sex pheromone component of the western blackheaded budworm, Acleris gloverana Walsingham (Lepidoptera: Tortricidae). The Canadian Entomologist, 128: 1135–1142. doi:10.4039/Ent1281135-6.CrossRefGoogle Scholar
Gries, G., Li, J., Gries, R., Bowers, W.W., West, R.J., Wimalratne, P.D.C., et al. 1994. (E)-11,13-Tetra-decadienal: major sex pheromone component of the eastern blackheaded budworm, Acleris variana (Fern.) (Lepidoptera: Tortricidae). Journal of Chemical Ecology, 20: 1–8. doi:10.1007/BF02065986.CrossRefGoogle ScholarPubMed
Langor, D.W., and Sperling, F.A.H. 1995. Mitochondrial DNA variation and identification of bark weevils in the Pissodes strobi group in western Canada (Coleoptera: Curculionidae). Canadian Entomologist, 127: 895–911. doi:10.4039/Ent127895-6.CrossRefGoogle Scholar
Mask, R.A. 1992. Western black-headed budworm and hemlock sawfly in Alaska—historical summary and bibliography. Technical Report R10-TP-21, United States Department of Agriculture, Forest Service, Alaska Region, Juneau, Alaska.Google Scholar
Nealis, V.G., Turnquist, R., and Garbutt, R. 2004. Defoliation of juvenile western hemlock by western blackheaded budworm in Pacific coastal forests. Forest Ecology and Management, 198: 291–301. doi:10.1016/j.foreco.2004.04.013.CrossRefGoogle Scholar
Nesbitt, B., Beevor, P.S., Cole, R.A., Lester, R., and Poppi, R.G. 1973. Synthesis of both geometric isomers of the major sex pheromone of the red bollworm moth. Tetrahedron Letters, 14: 4669–4670. doi:10.1016/S0040-4039(01)87305-6.CrossRefGoogle Scholar
Powell, J.A. 1962. Taxonomic studies on the Acleris gloverana–variana complex, the black-headed budworms (Lepidoptera: Tortricidae). The Canadian Entomologist, 94: 833–840. doi:10.4039/Ent94833-8.CrossRefGoogle Scholar
Roke, G., and Shand, A.S. 2006. Forest conditions, Mount Revelstoke and Glacier National Parks 2006. Forest Health Network, Pacific Forestry Centre, Victoria, British Columbia.Google Scholar
Roke, G., and Unger, L.S. 2005. Forest conditions, Mount Revelstoke and Glacier National Parks 2005. Forest Health Network, Pacific Forestry Centre, Victoria, British Columbia.Google Scholar
Shepherd, R.F. 1994. Management strategies for forest insect defoliators in British Columbia. Forest Ecology and Management, 68: 303–324. doi:10.1016/0378-1127(94)90053-1.CrossRefGoogle Scholar
Shepherd, R.F., and Gray, T.G. 1990 a. Distribution of eggs of western blackheaded budworm, Acleris gloverana (Walsingham) (Lepidoptera: Tortricidae), and of foliage over the crowns of western hemlock, Tsuga heterophylla (Raf.) Sarg. The Canadian Entomologist, 122: 547–554 doi:10.4039/Ent122547-5.CrossRefGoogle Scholar
Shepherd, R.F., and Gray, T.G. 1990 b. A sampling system for eggs of western blackheaded budworm, Acleris gloverana (Walsingham) (Lepidoptera: Tortricidae), on western hemlock, Tsuga heterophylla (Raf.) Sarg. The Canadian Entomologist, 122: 555–562. doi:10.4039/Ent122555-5.CrossRefGoogle Scholar
Shepherd, R.F., and Gray, T.G. 2001. Comparative rates of density change in declining populations of the blackheaded budworm Acleris gloverana (Lepidoptera: Tortricidae) among different sites on Vancouver Islands. Environmental Entomology, 30: 883–891. doi:10.1603/0046-225X-30.5.883.CrossRefGoogle Scholar
Silk, P.J., and Kuenen, L.P.S. 1988. Sex pheromones and behavioral biology of the coniferophagous Choristoneura. Annual Revue of Entomology, 33: 83–101. doi:10.1146/annurev.en.33.010188.000503.CrossRefGoogle Scholar
Silk, P.J., Kuenen, L.P.S., Alford, A.R., Lonergan, G.C., and Grant, G.G. 1997. Sex pheromone components of the oak leaf shredder, Croesia semipurpurana (Lepidoptera: Tortricidae). The Canadian Entomologist, 129: 1001–1008. doi:10.4039/Ent1291001-6.CrossRefGoogle Scholar
Silk, P.J., Tan, S.H., Wiesner, C.J., Ross, R.J., and Lonergan, G.C. 1980. Sex pheromone chemistry of the eastern spruce budworm. Environmental Entomology, 9: 640–644.CrossRefGoogle Scholar
Unger, L. 1992. History of population fluctuations and infestations of important forest insects in the Nelson Forest Region 1921–1991. Report 92-13, Forest Insect and Disease Survey, Pacific Forestry Centre, Victoria, British Columbia.Google Scholar
Yamada, S., Ohsawa, H., Suzuki, T., and Takayama, H. 1983. Stereoselective synthesis of (E)-, (E,Z)-, and (E,E)-conjugated dienes via alkylation of 3-sulfolenes as key step. Chemistry Letters, 12: 1003–1006. doi:10.1246/cl.1983.1003.CrossRefGoogle Scholar