Knowledgebase

Invasive species on Christmas trees? #778225

Asked November 22, 2021, 2:22 PM EST

Hi there, I work for a nature center in Antrim County, and we are planning our annual wreath-making event. One of our staff members has a connection with a tree farm downstate in Clarkston, and the farm has agreed to donate a bunch of conifer clippings for our wreath making event. However, we're concerned about the possibility for spread of invasive species on these branches (hemlock woolly adelgid or the newly detected balsam woolly adelgid, for example) as they're transported from downstate to our location in the northern lower peninsula. Are we correct to be concerned, or would it be safe to transport these tree clippings? Thank you!

Antrim County Michigan

Expert Response

Hi Emily,

Thank you for reaching out as your concern is valid. However, I do not believe HWA or BWA has been detected in the Clarkston area. Because the Michigan Department of Agriculture and Rural Development (MDARD) do the inspections on Christmas tree farms, I would recommend reaching out to them to be sure. MDARD has a hotline: <personal data hidden>. 

My first thought was keep a lookout for gypsy moth egg masses! They can be easily removed as one is working with the material. Dispose by scraping off egg masses and soaking in soapy water for 48 hours before discarding. Burning the eggs is also effective (and devilishly delightful). 

Good luck with your wreath making event!

-Julie

Julie Crick Replied November 23, 2021, 8:54 AM EST

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