Knowledgebase

Identification of cocoon #628772

Asked April 29, 2020, 7:29 AM EDT

This cocoon is located in a red maple tree in the Lochern area. Can you identify the species? Is this indicative of an invasive or harmful species? Thank you.

Baltimore County Maryland

Expert Response

This looks like a bagworm cocoon. This is a serious pest and a defoliator of evergreens and some deciduous trees. Handpick and throw in the trash. Here is our website for photos and management https://extension.umd.edu/hgic/topics/bagworms-trees-and-shrubs

Marian
Answered by the Home & Garden Information Center's Maryland Certified Professional Horticulturists Replied April 29, 2020, 12:16 PM EDT

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