Canadian Forest Service Publications

Comprendre la dynamique des infestations de livré des forêts pour élaborer des stratégies de lutte efficaces contre les ravageurs. 2013. MacQuarrie, C. Ressources naturelles Canada, Service canadien des forêts, Centre de foresterie des Grands Lacs, Sault Ste. Marie, Ontario. Frontline Express 68. 2p.

Year: 2013

Available from: Great Lakes Forestry Centre

Catalog ID: 34919

Language: French

Series: Frontline Express (GLFC - Sault Ste. Marie)

CFS Availability: PDF (download)

Plain Language Summary

This two-page note outlines an analysis of historical patterns of forest tent caterpillar outbreaks. Records dating back to the 1930s show that outbreaks last a few years and recur about every 10 years. The pest defoliates aspen and other deciduous species. The largest area of defoliation recorded was 14.3 million ha in 2001. Repeated defoliation causes growth losses, stresses trees and can lead to aspen decline. Widespread insect damage results in financial losses to the forest industry. A better understanding of the ecology of these outbreaks will lead to more effective management. The knowledge will also help predict the influence of climate change on future outbreaks. This research aligns with the government’s mandate to protect Canada’s natural resources from disturbances.

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