HWA detection season is here

HWA is most visible in winter and early spring, so watch for the characteristic white woolly masses on the underside of branches when you're skiing and hiking.

HWA established in Michigan

From an article by Michigan State University Extension

"An insect responsible for the loss of much of the eastern United States Appalachian region’s hemlock trees has found its way into Michigan. The hemlock woolly adelgid poses a threat to the state’s valuable hemlock stands. A call to action by citizens may be the most realistic path to further detection and control."

MSU extension is coordinating the eyes on the forest program.


Eastern hemlock project on inaturalist

Inaturalist is a website and app that can be used to record observations of any species. The eastern hemlock project is now on inaturalist

We're especially interested in locating old-growth hemlock forests, which should be a priority for management.

We're also very interested in hemlock hedges, which are important for rearing biocontrol organisms (more on this below).

And we'd like records of hemlock woolly adelgid, particularly near the front of its range expansion, to help fellow naturalists track its progress (please also report HWA to official agencies!). 


Seeking hemlock hedges

"Hedges made of hemlock trees with thriving populations of HWA are prime candidates for biocontrol. Why? Because predators are easier to catch on a hedge, making it easier to monitor predator establishment and to collect them in order to introduce them in other locations."

The NY State Hemlock initiative is seeking hemlock hedges, infested with HWA or not. Outside NY State? Add your hedge to our inaturalist project


This newsletter was brought to you by Ancient Forest Exploration & Research. Please forward it to anyone who might be interested.

We're still looking for high value hemlock forests for our hemlock mapping project, please send us details on mature or old-growth hemlock forests that you know of in southern Ontario, and / or add them to our inaturalist project.

To learn more about HWA in Ontario or to sign up for this newsletter go to http://www.ancientforest.org/hwa/ and to learn more about how and when to monitor for HWA go to  http://www.ancientforest.org/monitoring-for-hwa-how-and-when/