The product label for Advion WDG Insecticide states the following in regards to targeting carpenter bees:
"Direct application to bees and their nests should be made to improve treatment to galleries. When treating bee galleries, complete coverage of wood surfaces is important for optimal control. *Advion WDG will provide adequate control but is not a quick knockdown agent."
You can also refer to our helpful guide on How to Get Rid of Carpenter Bees or Wood Bees for the recommended methods of treatment, and products, such as our Carpenter Bee Control Kit.
