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

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