Hemlock Woolly Adelgid: What You Need to Know

Hemlock woolly adelgid on a branch

Hemlock occupies a special place in the hearts of many landowners in the eastern United States. This shade-tolerant conifer grows slowly and may live for centuries. The hemlock woolly adelgid, a tiny Asian insect, has infected hemlocks from Nova Scotia to Alabama and is continuing to spread.

Are My Woods At Risk?

If you grow eastern hemlock or Carolina hemlock, your trees may be at risk. Check the most recent map to see how far the insect has spread and whether it's in your area. 

In the West, the adelgid infests western hemlock and mountain hemlock, but doesn’t cause serious damage.

With the right information, you can take care of your woods. Start by learning a little hemlock woolly adelgid biology, or jump to steps for damage control or prevention. And remember, help is always available.


Next page 

How can I get more tips?

It’s simple! Enter your email below.