Canadian Forest Service Publications

MacQuarrie, C. 2013. Predicting jack pine budworm defoliation. Natural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, Sault Ste. Marie, Ontario. Frontline Express 86. 2 p.

Year: 2020

Issued by: Great Lakes Forestry Centre

Catalog ID: 40182

Language: English

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

Availability: PDF (download)

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Plain Language Summary

The jack pine budworm is the most damaging pest of jack pine in eastern Canada, but especially so in the provinces of Ontario, Manitoba and Saskatchewan. Outbreaks of this budworm occur approximately every 10 years but high defoliation levels occur for 3-4 years during the outbreak. This document describes the life cycle, appearance, damage and control measures available for managing jack pine budworm outbreaks.