Posted: July 08, 2021

In this Boston Globe article, George Barth from Hartney Greymont, a Davey company, talks about hemlock woolly adelgid, the damage it causes and what you should do.

hemlock woolly adelgid

Q. My husband and I have tried various remedies on our row of hemlock trees to eradicate the woolly adelgid to no real benefit. Do you have a tried-and-true application to suggest?

A. The threat from this tiny-but-deadly aphid relative from Asia, named for its small, gray, woolly balls of fluff that line the underside of hemlock branches, is increasing with our milder winters. Infected hemlocks can die in less than five years unless treated. Frankly, if you have a hemlock hedge, it makes sense to replace it with either a fence or a row of evergreen Arborvitae plicata, such as the Green Giant variety, which grows tall, narrow, and fast and is so bulletproof that deer won’t eat it. I would not plant more hemlocks because of their pest problems, which now include elongate hemlock scale, which is almost as deadly and common as woolly adelgid, according to George Barth, plant health care manager at Hartney Greymont, a Davey company, of Needham and Concord. “It produces orange-brown waxy spots that you can see through a magnifying glass on the underside of the needles.” Talk about a one-two punch!

To continue reading George's advice, click here

Established in 1880 and headquartered in Kent, Ohio, The Davey Tree Expert Company provides research-driven tree services, grounds maintenance and environmental consulting for residential, utility, commercial and environmental partners in the U.S. and Canada. Davey Tree is the eighth largest employee-owned company in the U.S. with over 11,000 employees. Become part of the Davey legacy and apply today  

Other News Posts

DSC01069
Davey In The News

Weathering the storm: Experts share tips on how to protect vulnerable trees from damage

In this Palo Alto online article, Dr. Thomas Whitney, technical adviser within the Davey Institute, talks about protecting trees from storm damage.
Read More
Kraker
Davey In The News

Tennessee bushes, trees hit hard by frost damage at homes and the Nashville Zoo

In this News Channel 5 Nashville segment, Rob Kraker from Davey’s Southeast Nashville office talks about what to do with frost damaged trees.
Read More

Get In Touch With Us!

We pride ourselves at Davey Tree on providing prompt, professional and personalized service from certified arborists that live, work and engage in your community. Contact one of our Davey Tree specialists for your residential, commercial, utility, or environmental needs.

Let's Find What
You're Looking For!

Davey uses cookies to make your experience a great one by providing us analytics so we can offer you the most relevant content. By continuing to use this site, you accept our use of cookies. View our Privacy Policy for more information.