Canadian Forest Service Publications
Collapse of hemlock looper outbreaks: key role of Telenomus. 2004. Hébert, C. Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Ste-Foy, Québec. Branching out, Number 13. 2 p.
Available from: Laurentian Forestry Centre
Catalog ID: 25080
Series: Branching Out (LFC - Québec)
CFS Availability: PDF (download)
The hemlock looper is an important defoliator of balsam fir and outbreaks of this pest can build up very rapidly. Trees that sustain severe damage may die within a season. Researchers at the Laurentian Forestry Centre of the Canadian Forest Service have found a direct link between the activity of Telenomus, parasitoids of the hemlock looper, and the collapse of an outbreak of this pest.
Also available under the title:
Déclin des épidémies d'arpenteuse de la pruche : Rôle clé des _Telenomus_. L’éclaircie du Service canadien des forêts, Centre de foresterie des Laurentides. No. 13. (French)
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