Insect nest identification

Asked July 7, 2019, 5:15 PM EDT

We found these two nests on our porch and are wondering what types of insects created them and how best to remove them.

Montgomery County Maryland insect or spider id beneficial insects and pollinators

1 Response

These look like nests of mud dauber wasps. They are beneficial predators of spiders and they are not aggressive like other wasps or yellow jackets.
https://extension.umd.edu/hgic/mud-daubers

The mud nests can be scraped off and discarded at night if they are objectionable.

There is additional information in the links below.
http://bugoftheweek.com/blog/2017/8/8/where-have-all-the-spiders-gone-black-and-yellow-mud-dauber-wa...

https://hortnews.extension.iastate.edu/mud-dauber-wasp

Christa