The hemlock woolly adelgid has invaded two more Michigan counties, threatening trees in 11 counties total. VAN BUREN COUNTY, ...

If hemlock trees on your property show signs of hemlock woolly adelgid infestation, now is a good time to plan for spring treatment of this invasive species. Hemlock woolly adelgid, native to Asia, is ...

The Michigan Department of Natural Resources (DNR) is asking people to plan now for spring treatment of hemlock woolly ...

Our hemlocks lack natural resistance to HWA, and HWA does not have natural predators in our country to keep its populations under control. All homeowners with hemlocks on their property need to be ...

What you can see, during the first half of the year, are these white, cotton ball-looking things on the underside of hemlock branches. That’s their egg sacks.” The hemlock wooly adelgid suck ...

In the lush, verdant forests of Pennsylvania, one tree stands as a sentinel of the state’s rich natural heritage: the Eastern ...

Early impacts on trees infested with HWA include loss of needles and reduction to growth of new needles and branches. If left untreated, HWA infestations can result in hemlock tree death within 3-5 ...

Hemlock woolly adelgid feeds by extracting sap from hemlock trees, progressively weakening needles, branches and shoots. Without treatment, affected trees typically die within four to 10 years. The ...

August 6, 1947 was a hot, humid day and Dorothy Andrick woke up with a backache. She knew that she was about to have her seventh child. She also knew that the beans in the garden needed to be pulled ...