By Andi Anderson
Michigan homeowners and landscapers are being warned about the spread of the invasive box tree moth (Cydalima perspectalis), a pest that can defoliate and kill boxwood shrubs.
Since its detection in 2022, the pest has established itself across a 13-county quarantine area in southeastern and central Michigan.
The Michigan Department of Agriculture and Rural Development (MDARD) implemented a quarantine on boxwood shrubs in 2023 to limit further spread. Within the quarantine zone, growers and retailers must follow strict internal measures, and any movement of boxwood plants outside of the regulated area requires a signed compliance agreement.
For homeowners and landscapers, moving boxwood plants, trimmings, or debris from these areas is strictly prohibited.
Residents outside the quarantine zone play an important role in early detection and containment. Officials encourage residents to regularly monitor their shrubs for infestations and to report sightings using the Michigan Department of Natural Resources’ “Eyes in the Field” reporting tool. However, sightings within the current quarantine counties do not need to be reported.
To help the public, Michigan State University Extension has released an updated “Box Tree Moth Alert.” This resource provides identification tips, control options, and alternative landscaping recommendations for homeowners. Additional educational materials are available at MSU Extension’s website.
By monitoring closely, reporting responsibly, and following quarantine regulations, Michigan residents can help protect local landscapes and prevent the further spread of this damaging invasive pest.
Photo Credit: gettyimages-ian-redding
Categories: Michigan, Sustainable Agriculture