March: HWA is active

Between now and May is the best time to be looking for Hemlock Woolly Adelgid. Whether you are just walking in the woods and check a few branches, or are doing full HWA surveys, Mark Whitmore's early detection fact sheet is a good starting point: or visit our webpage on HWA monitoring, which we will continue to update:

Above: a light infestation of HWA, this is what you should probably be looking for in Ontario right now.


HWA detection workshops in NY State

Want to go see HWA where it is already established? Next Saturday March 19 Mark Whitmore will be offering an HWA detection workshop in Skaneateles, NY:

Future NY HWA workshops will be posted here:


New HWA movie

There's a great new video about Hemlock Woolly Adelgid, which we highly recommend. It shows some of the work that's being done to slow and hopefully stop HWA. watch it now on YouTube:

This newsletter was brought to you by Ancient Forest Exploration & Research.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. To sign up for this newsletter go to