Hemlock woolly adelgid (Adelges tsugae) is a destructive pest of eastern hemlock (Tsuga canadensis) trees. Report Results.
Maine's forest trees are under attack from multiple invasive forest insect pests, and the threat of new pests invading Maine is constant.
Photos of Hemlock Woolly Adelgid . Read on to learn more about the woolly adelgid, and find out how to tell if the hemlocks in your yard are infested.
Overview of Hemlock Woolly Adelgid in Maine .
2008), its abundance in the northeastern United States (US) had remained low until recent years. Because the survival of this invasive pest – a native insect to parts of Asia – is limited by extreme cold temperatures (Paradis et al. HEMLOCK WOOLLY ADELGID: CLIMATE CHANGE AND RANGE EXPANSION Drew Mealor 2014 Environmental Studies, Colby College, Waterville, Maine 04901 Introduction Table 1: The Hemlock Woolly Adelgid (Adelges tsugae, HWA) is an invasive forest pest that was introduced to the Eastern U.S. in 1951. Invasive insects such as EAB and hemlock woolly adelgid (HWA) will forever change Maine's forests as they spread and continue to kill trees throughout the state. Though small, it is destroying hemlocks from Maine to Georgia. Hemlock Woolly Adelgid Attacks Hemlock Trees . However, they cover themselves with a woolly, white material which is especially conspicuous in the winter months (November through April). HWA infests large hemlock forests as well as hemlock trees in your yard. They are hardly visible to the naked eye. Report your observations (HWA found or not and location) on the Vital Signs Web Site (off-site); Mail data sheets to: Colleen Teerling, MFS Insect and Disease Lab, 50 Hospital Street, Augusta, ME 04330 or (207) 287-3096. Downloads: Instruction Sheet ().
Hemlock woolly adelgid, or HWA, is a tiny, white fuzzy insect.
Results can also be used to better understand the risk potential of insects already in the state as well as those that are not. HWA Lifecycle.
The HWA feeds on Eastern Hemlock (Tsuga canadensis) trees, which are an important component of … Hemlock woolly adelgid has expanded its range in the eastern US from Virginia to other states, including Connecticut, Delaware, District of Columbia, Georgia, Kentucky, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, and West Virginia (Fig. Originally from Japan, the hemlock woolly adelgid inadvertently was shipped to Maine from Connecticut on untreated nursery stock in 1999. The woolly adelgid is considered a serious threat to species of eastern hemlocks and to the overall health of forest and river ecosystems. Printable Data Sheets (pdf) page 1, page 2. The hemlock woolly adelgid is dark colored and less than 1/16 of an inch long. The hemlock woolly adelgid is a tiny, aphid-like insect that is ravaging hemlocks from Maine to Georgia.
Hemlock woolly adelgid poses a serious threat to eastern hemlocks, and by extension to the health of our forests and rivers.