Balsam Woolly Adelgid and Spruce Adelgid

Balsam Woolly Adelgid        (Adelges piceae) Distribution:   Introduced from Europe around 1900, this pest is now common throughout eastern North America wherever true firs are grown. Infestations are also present along the Pacific West Coast.   Hosts:  All true firs, Abies, can be attacked but balsam fir and Fraser fir are the most common firs [...]