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Protecting Ontario’s Eastern Hemlock (Tsuga canadensis) From Hemlock Woolly Adelgid (HWA):
A Practical Guide for Practitioners, Landowners, and Land Managers
Coming soon
An announcement will be made once the guide is available for download.
The invasive insect hemlock woolly adelgid (Adelges tsuga) (HWA) poses a significant threat to Ontario’s native eastern hemlock (Tsuga canadensis). Eastern hemlocks are a slow growing and long-lived species that play an important role in vast areas of Ontario’s forest ecosystems. As of this writing, HWA has already infested much of the eastern United States and southwestern Nova Scotia. It has also been found in Ontario along eastern Lake Erie, the Niagara Region, Toronto, Grafton, and neighboring municipalities. All eastern hemlocks will likely be at risk in Ontario to an HWA infestation within projected best case climate scenarios. |
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Several decades of research and lived experience from eastern USA and Nova Scotia have led to the development of effective strategies for the reduction of hemlock losses as well as future positive programs such as seed collection. As a species that serves unique and critical ecological functions, protecting hemlock should be a high priority. Any landowners or land managers with eastern hemlock present on their land can begin monitoring for HWA and taking active measures to promote hemlock conservation.
This Guide will serve as a starting point for practitioner and landowner HWA education and equips the reader with approaches to monitoring and treatment methods for the conservation of hemlock. Key information, instructions, and external resources needed to guide the reader through the entire process are presented.