May 03, 2021 - 07:41 AM
Here is what I recommend for carpenter bees -
1. Treat the individual holes with insecticide dust such as Tempo dust, or similar dust. Inject this dust into the holes with a puffer duster.
2. Seal the holes with a color matching wood putty.
3. Spray the entire wood surface with Onslaught Fastcap. This establishes a barrier that helps to kill carpenter bees when they land on it.
4. Repeat the entire process every few weeks until they are gone. You can try using Tempo SC if you have it, if not then I highly recommend Onslaught FC.
If the bees are swarming and won't allow you to dust and seal the holes, then spray the Onslaught Fastcap first to knock down the population.
Hope this helps.