Browntail moth is the poison ivy of the sky. The caterpillar of this invasive species produces hairs that frequently break off its body and produce poison ivy-like rashes in many people who are exposed. These hairs can create serious hazards even when walking nearby webs or mowing the lawn underneath.
The caterpillars feed on hardwoods, including oaks, cherries, apples, birch, and rugosa roses At the tips of branches, they form hand-sized, white webs that leak the irritating hairs.
AFPM can treat trees in spring and make them temporarily kill all browntail moth caterpillars on the leaves, stopping them from forming webs.
You can learn more at www.maine.gov/dacf/mfs/forest_health/documents/browntail_moth_brochure.pdf
Vodex, CC BY-SA 2.0 <https://creativecommons.org/licenses/by-sa/2.0>, via Wikimedia Commons
Muséum de Toulouse, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons