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Dwarf Mulberry Tree Foreign Growth on Stem #764704

Asked July 29, 2021, 7:13 PM EDT

While checking the health of my Dwarf Mulberry Trees, I noticed an approximately penny sized (in circumference) growth around the base of my plant. I didn't touch it, so I'm not sure whether it's hard or soft.

Prince George's County Maryland

Expert Response

This interesting little structure is the nest of a type of mud-dauber wasp, appropriately called a potter wasp. They are not an aggressive type of wasp. These links provide more information about them:

https://extension.umd.edu/resource/mud-daubers

https://news.maryland.gov/dnr/2018/09/24/habichat-potter-wasp/

Christa

Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied July 30, 2021, 11:58 AM EDT
Very interesting. Thank you for sharing those informative links, Christa. They are very cute and I'll be sure to leave their nest alone.

-Malik


 
The Question Asker Replied August 02, 2021, 5:22 PM EDT

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