Thursday, May 7, 2009
Mud Dauber Mom
We recently observed a mud dauber wasp building her nest on our back patio. She was busy early in the morning building the last of nine cells, each of which will eventually hatch out a new wasp. I read in our Field Guide to North American Insects that in order to provide for her young, Momma Mud Dauber stuffs each cell with up to a dozen spiders. We are thrilled, because our back patio has been a refuge for black widows. The last one I spotted had spun a web right next to the door. But since the mud dauber built her nest, I haven't seen any black widows! To me, this is a great alternative to pesticides.
When we first saw her, she had just started the last cell. Within an hour, she had built it up and was ready to cap it off. Now we wait for the next generation to emerge.