News On Vermont Invasives

Below, you'll find news about the initiatives of our partnerships. You can also see upcoming events in our calendar or subscribe to our newsletter to receive updates on our work.

Wednesday, December 17, 2014

An annual report on the health of Vermont forests identifies some trouble spots but says overall, it was a good year for trees.

Because Vermont is 78 percent forested, the health of the state’s hardwood and softwood species is important.

Audio from this story will be posted at approximately 11 a.m. on Wednesday, Dec. 17.

Monday, December 8, 2014

State and federal foresters are looking for an eastern hemlock version of Superman.

Their search for a “bulletproof” genetic strain of Pennsylvania’s state tree is an important part of a new, multi-branched plan to save as many of the stream-shading evergreens as possible from an invasive and voracious Asian insect, the hemlock woolly adelgid.

Monday, December 8, 2014

WARWICK — The winter moth, an invasive spring leaf-eater that in recent years has punctually emerged after Thanksgiving to swarm in startling numbers in the beams of Christmas lights, could be enjoying one of its last holiday seasons.

And the owners of hardwood trees and fruit growers across Rhode Island and Massachusetts can thank an introduced parasitic fly for the moth’s eventual...

Sunday, December 7, 2014

By Patrick O’Grady Valley News (VT), Sunday, December 7, 2014

Windsor — It will come as no surprise to Windsor residents to hear Barbara Rhoad speak fondly of one of nature’s grandest icons.

“I’ve always loved trees,” Rhoad said, providing a simple but enthusiastic response to why she has spent 20 years as a volunteer planting and caring for...

Tuesday, December 2, 2014

KANSAS CITY, Missouri—Forester Kevin Lapointe remembers clearly the day he and his colleagues at the Kansas City Parks and Recreation Department did their first autopsy on a dead ash tree. Under its peeling bark, they found S-shaped burrows running across every inch of the outer layer of wood. Looking closer, they discovered the killer: a slender green beetle smaller than a penny.

Monday, December 1, 2014

Aliens are coming to Williston.
Metallic-green beetles will arrive from out of state, perhaps on a truck full of firewood. They will find home in the town’s many ash trees, munching leaves and mating. Females will lay eggs in the bark.
When larvae hatch, the destruction begins. They feed on tissue that carries water and nutrients, killing the tree from the top...

Friday, November 21, 2014

By TODD RICHMOND, Associated Press

MADISON, Wis. — The state Department of Natural Resources' board could add scores of organisms to Wisconsin's invasive species list next month in the first revisions to the catalog since it was created five years ago.

The DNR has proposed classifying 49 more species as prohibited, which means people can't sell, possess or...

Monday, November 17, 2014

Early detection of the Elongate Hemlock Scale (EHS) is key to keeping Vermont’s forests healthy and functioning.  This invasive forest pest from Asia threatens hemlock trees (Tsuga canadensis).  Hemlock is Vermont’s 7th most common tree.  It provides many important ecological functions such as, providing winter shelter for wildlife and shading streams to keep...

Monday, November 17, 2014

Since 1951, when it first arrived from Asia, hemlock woolly adelgid has been spreading along the eastern seaboard of North America.  Hemlock woolly adelgids are tiny insects that feed exclusively on hemlock trees.  They are most easily spotted by looking for their round, fuzzy, white coverings on the underside of hemlock twigs.  Now found from Georgia to Maine, HWA has killed...

Monday, November 17, 2014

In 2014, hemlock health in general seemed to suffer.  We received calls from foresters for the first time, noting declining stands of hemlock and were able to map some of these in our aerial surveys.  Elongate hemlock scale was discovered coexisting with HWA in Windham County.  There were some hot, dry spells through the summer which may have stressed trees on droughty sites.