Mud daubers, a type of wasp, are a source of common complaints from homeowners. They are solitary wasps as opposed to the social wasps (paper wasps and yellow jackets). The insect is usually a blue-black color with dark wings. They can make a variety of nest shapes or designs depending on the species. These mud nests are conspicous to the homeowner when found around doors, windows, eaves and on barns or sheds. The nests are placed in areas protected from the weather.
The wasp makes several individual mud structures. These are grouped together, attached in some cases, but each contain one egg. The egg hatches and the larvae feeds on spiders which have been paralyzed by the wasps sting and placed inside the cell.
Control is quite easy, knock down the nest. Wasps may fly around eaves to find spiders. Apply a liquid concentrate to the eaves. Not only will in kill the wasp if it comes in contact with the treated area, but it will also kill the spiders, further reducing the number of foraging wasps. If you have any questions about this product, please contact any of the store locations listed below.