Frederick Master Gardeners: The Invasive Box Tree Moth: A New Boxwood Pest

Join the Frederick County Master Gardeners for the Cultivation Lecture Series and learn about The Invasive Box Tree Moth: A New Boxwood Pest.

A new invasive insect that targets boxwood plants may be coming to your area. The invasive box tree moth (Cydalima perspectalis) is native to eastern Asia but has been found in certain areas of North America, including nine U.S. states. In the summer of 2025, the first confirmed report of box tree moth in Maryland was documented in Washington County. It has not yet been confirmed in other Maryland counties. We need your help to watch for this new pest and reduce its impact on boxwood plants. Box tree moth caterpillars damage boxwoods by chewing leaves and bark, which can cause leaf browning, defoliation, and girdling. If you notice chewing damage on boxwood leaves, it may be caused by box tree moth. Join us for this hour-long session to learn more about this insect and what you can do.

Please complete this pre-survey before attending: https://ume.qualtrics.com/jfe/form/SV_djs2vHLTWixqf5A

* Registration for this seminar begins 3 weeks prior to the event.

**If you're unable to attend, please kindly cancel your reservation so that someone else may attend.

The doors open 30 minutes prior to the start time.

Point of contact: Amy Rembold, [email protected], 301-600-1596

University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate, please contact Amy Rembold at [email protected] or 301-600-1596 by January 29, 2026.

In the event of inclement weather please check the Frederick County Master Gardeners Facebook page for updates. https://www.facebook.com/mastergardenersfrederickcountymaryland

For more information about the Frederick County Master Gardener program and seminars go to: https://extension.umd.edu/locations/frederick-county/home-gardening

Sign up to receive Frederick County Garden Smart. This free publication, issued 4 to 6 times a year, describes upcoming Master Gardener seminars and events, and gives you links to gardening tips and resources. To subscribe, send an email to [email protected]. You also can view the Frederick County Garden Smart publication on the FCMG website by clicking on the link above, scrolling down to Resources and then click on the red FCMG News box.

Event Venue

University of Maryland Extension Office, 330 MONTEVUE LN, FREDERICK, United States

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