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Biology of the spiny ash sawfly, Eupareophora parca (Hymenoptera: Tenthredinidae: Blennocampinae), in Edmonton, Alberta

Published online by Cambridge University Press:  02 April 2012

Daryl J. Williams
Daryl J. Williams
Affiliation:
Natural Resources Canada, Canadian Forest Service, Northern Forestry Centre, 5320 122 Street, Edmonton, Alberta, Canada T6H 3S5 (e-mail: [email protected]
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Abstract

The spiny ash sawfly, Eupareophora parca (Cresson, 1880), was discovered in Edmonton in 2003 at the Northern Forestry Centre defoliating planted ash trees (Fraxinus spp.). This represents the first record of this species from Alberta. Observations of adult and larval behaviour and life-history variables such as adult flight, number and duration of larval instars, and overwintering were made. The nature and severity of defoliation was monitored in 2003 and 2004, and large increases were detected in the amount of defoliation per site and the number of sites defoliated between years. The precipitous increase in severity and extent of defoliation indicates the possibility that this species could become a significant urban pest in the province.

Résumé

La tenthrède épineuse du frêne, Eupareophora parca (Cresson, 1880), a été observée pour la première fois à Edmonton en 2003 au Northern Forestry Centre en train de défolier des frênes (Fraxinus spp.) cultivés. C'est la première mention de cette espèce en Alberta. Cette découverte a permis d'observer le comportement des adultes et des larves et de déterminer certaines variables du cycle biologique, telles que le vol des adultes, le nombre et la durée des stades larvaires et la survie à l'hiver. La nature et l'importance de la défoliation observées en 2003 et 2004 montrent une augmentation importante d'une année à l'autre de la défoliation à chacun des sites et du nombre de sites soumis à la défoliation. La croissance rapide de la sévérité et de l'étendue de la défoliation indique de l'espèce pourrait éventuellement devenir un ravageur urbain d'importance dans la province.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 139 , Issue 2 , April 2007 , pp. 269 - 277
Copyright
Copyright © Entomological Society of Canada 2007

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References

Douce, K., Moorehead, D., and Bargeron, C. 2006 a. The Bugwood Network [online]. Available from www.bugwood.org [accessed 18 December 2006].Google Scholar
Douce, K., Moorehead, D., and Bargeron, C. 2006 b. Forestry images [online]. Available from http://www.forestryimages.org [accessed 18 December 2006].Google Scholar
Goulet, H. 1992. The insects and arachnids of Canada. Part 20. The genera and subgenera of the sawflies of Canada and Alaska: Hymenoptera; Symphyta. Agriculture Canada Research Branch Publication 1876.Google Scholar
Ives, W.G.H., and Wong, H.R. 1988. Tree and shrub insects of the Prairie Provinces. Information Report NOR-X-292, Canadian Forest Service, Northern Forestry Centre, Edmonton, Alberta.Google Scholar
Johnson, N.F., and Musetti, L. 2000. Hymenoptera online database [online]. Available from http://iris.biosci.ohio-state.edu/hymenoptera/ [accessed 18 December 2006].Google Scholar
Martin, J. 1960. The bionomics of Profenusa thomsoni (Konow) (Hymenoptera: Tenthredinidae) a leaf-mining sawfly on Betula spp. The Canadian Entomologist, 92: 376–384.CrossRefGoogle Scholar
Norden, G., and Johnson, E. 1983. Biology of Caliroa quercuscoccineae (Dyar) (Hymenoptera: Tenthredinidae) in central Kentucky I. Observations on the taxonomy of principal life stages. Journal of the Kansas Entomological Society, 56: 305–314.Google Scholar
Packard, A.S. 1890. Insects injurious to forest and shade trees. United States Department of Agriculture, Fifth Report of the United States Entomological Commission (Bulletin 7, revised).Google Scholar
Pohl, G., Saunders, C., Barr, W.B., Wartenbe, M., and Fownes, S. 2004. Caloptilia fraxinella (Lepidoptera: Gracillariidae), a new pest of ash (Oleaceae: Fraxinus spp.) on the Canadian Prairies. The Canadian Entomologist, 136: 733–736.CrossRefGoogle Scholar
Price, P., Roininen, H., and Ohgushi, T. 2005. Adaptive radiation into ecological niches with eruptive dynamics: a comparison of tenthredinid and diprionid sawflies. Journal of Animal Ecology, 74: 397–408.CrossRefGoogle Scholar
Rose, A.H., and Lindquist, O.H. 1997. Insects of eastern hardwood trees. Revised by Kathryn Nystrom. Forestry Technical Report 29, Natural Resources Canada, Canadian Forest Service, Ottawa, Ontario.Google Scholar
Smith, D. 1969. Nearctic sawflies. I. Blennocampinae: adults and larvae (Hymenoptera: Tenthredinidae). United States Department of Agriculture Technical Bulletin 1397.Google Scholar
Watson, W. 1959. The larva of Profenusa alumna (MacG.) (Hymenoptera: Tenthredinidae). The Canadian Entomologist, 91: 618–625.CrossRefGoogle Scholar