September 22, 2025

VDACS Announces Detection of Invasive Box Tree Moth in Winchester, Va.

Richmond, Va. - The Virginia Department of Agriculture and Consumer Services (VDACS) announces the detection of box tree moth, Cydalima perspectalis, in the city of Winchester, Virginia. In July and August, VDACS inspectors discovered and treated box tree moth at multiple sites in Clarke, Frederick, and Loudoun counties. VDACS will continue to survey in order to determine the extent of the box tree moth populations in these areas.

Box tree moth is native to East Asia and has become a pest in Europe where boxwood is native. The invasive insect pest can significantly damage and potentially kill boxwood (Buxus species) plants if left untreated. The caterpillars are ravenous feeders, and heavy infestations can completely defoliate host plants. VDACS will provide treatment for boxwood plants, if box tree moth is confirmed.

Early detection and rapid response are vital for the management of any newly introduced plant pest. VDACS encourages property owners and the public to report any suspected damage to boxwood plants on their property using VDACS’ Invasive Species Reporting Tool.

For resources on how to identify box tree moth damage or life stages, please visit www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/ENTO/ENTO-445/ENTO-445.pdf.

For more information on box tree moth, please visit www.vdacs.virginia.gov/plant-industry-services.shtml or www.aphis.usda.gov/plant-pests-diseases/box-tree-moth or contact the VDACS Office of Plant Industry Services at 804.786.3515.