Mud Dauber Wasp

The mud dauber wasp is named for the way the females construct nests from bits of mud. Their nests are made up of tube shaped chambers, usually attached under eves. These wasps are around ¾” long, mostly black, and depending on the variety have some yellow markings. They also have a very narrow, almost string-like waist. Solitary and non aggressive, these wasps rarely sting or defend their nest like other, more social insects. Instead, mud daubers use their stingers to hunt other pests such as spiders. Their old nests can be a nuisance and if not active, can be scraped down. Just be aware that mud dauber wasps can be persistent at rebuilding their nests over again.


Hydrex Pest Control of the North Bay Inc.
4685 Scotts Valley Rd.
Lakeport, CA 95453
(800) 760-3028

Hydrex Pest Control of the North Bay Inc.
1120 Industrial Ave
#18 Petaluma, CA 94952
(707) 795-6345


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