NORTON SHORES, Mich. — A small insect could create a huge problem for one of Michigan’s most prominent tree species. Hemlock Wooly Adelgids, or HWAs, are tiny insects that nest at the base of hemlock ...
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It’s a warm day in early June, and researcher Nicholas Dietschler is standing in front of an eastern hemlock sapling about a quarter of a mile up a steep ridge in New York’s Catskill Mountains. The ...
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