Protecting trees and forests

Balsam Woolly Adelgid

Balsam woolly adelgid was introduced into North America from Europe around 1900. It feeds on true firs, including balsam and Fraser firs. It is currently found in the northeastern U.S., the Canadian Maritimes, British Columbia and the Pacific Northwest.

The N.H. Division of Forests and Lands monitors balsam woolly adelgid and in 2015 they mapped mortality of balsam fir from balsam woolly adelgid on 3,513 acres.

The Basics
Balsam Woolly Adelgid leaflet (Vermont Forest Health)
Balsam Woolly Adelgid pest alert (U.S. Forest Service)

Other Information
Looking for the Balsam Fir (by James Frohn, Grafton County Extension Forester)