Wondering if I could ask your opinion about a wasp or something making a nest outside my house.
I have an old hole in the outside portion of my brick house. (1/4 inch in diamater and several inches deep)
One day I noticed something covered the hole with perfectly round cut pieces of leaves covering the hole in the brick. I picked at the hole trying to figure out what was inside but i never could spot anything. A few days later the hole was covered up again with this pefectly cut round leaves again.
Any idea what i could be dealing with by chance??
Thanks in advance for any help.
It sounds like you have leaf cutter bees. These solitary bees will many times find the drain holes, also known as weep holes, which are built into brick walls to allow water to drain away from the house. Leaf cutter bees will lay eggs and plant food in these lines changing it to a type of nest. Next they will seal them off with cut up leaves as described in our LEAF CUTTER BEE CONTROL article.
One or two leaf cutter bees doing this probably isn’t a major problem. But if you don’t watch the activity carefully, it could grow and when these holes gets sealed tight, water won’t be able to properly drain. This can cause moisture problems and at some point, leaks in the home.
To prevent this from happening, spray the holes with the CYPERMETHRIN CONCENTRATE. These bees hate this stuff and will avoid treated areas. If you only have a few holes to treat, use the D-FORCE AEROSOL. It’s handier since it’s ready to spray and requires no mixing.