The Hemlock Woolly Adelgid, (Adelges tsugae or HWA), Is a tiny sap-sucking insect that feeds on sap at the base of needles of North American Hemlocks, (Tsuga canadensis and T. caroliniana). Native to Asia and the Pacific Northwest, these insects were first seen in the eastern United States in 1951 in a park in Richmond, VA and they were seen in Connecticut in 1985. The most obvious sign of infestation is the presence of white woolly egg sacs on the underside of hemlock needles, especially on new growth. Other signs include thinning of needles and grayish needle color. HWA can kill infected trees within 4-9 years depending on conditions and infestation severity. There are treatments with horticultural oil or insecticidal soaps to prevent HWA which are best applied in the spring. If a tree is already infested, there are systemic insecticides that are low in toxicity and can be applied via soil or injected directly into the trunk. We prefer to use the trunk injection method because there is little to no effect on surrounding environment.
HEMLOCK WOOLLY ADELGID
Recent Comments
My only criticism is that it took a few weeks following our deposit for the work to be done.
Thank you Frank and your crew , cut down , cleaned up
Another plus was that Frank used narrower-width machinery on our job, so they could access our backyard without needing to remove fencing or nearby bushes to make space for larger equipment.
Also great to see the crew wearing their safety gear at all times on the job.