HWA infestations can be most noticeably detected by the small,
white, woolly masses that are attached to the underside of the
twig, near the base of the needles. continued Systemic
insecticides may be an option for larger trees. For insecticide
guidelines for the state, visit Cornell University’s Crop and
Pest Management Guidelines at ipmguidelines.org/ and the DEC
recommends consulting a certified pesticide applicator.
Dispersal and movement of HWA occur primarily during the first
life stage (“crawler”) as a result of wind and animals that come
in contact with the sticky egg sacks and crawlers. Isolated
infestations and long-distance movement of HWA most often are
instances of people transporting infested nursery stock or other
forest products. Information on HWA can be found at
www.nyis.info. For questions or to report possible infestations
visit DEC’s website at www.dec.ny.gov/animals/82617.html or call
its toll-free Forest Pest Hotline at 1-866-640-0652.