Anthony from Dandridge, Tn writes
I see that Demand CS (lambda-csi) is specifically labeled to kill carpenter bees, but is much more expensive. Also is dusting the nest necessary, or will re-spraying the nest periodically (monthly?) be effective as well to kill larvae?
Talstar P is very effective for controlling carpenter bees. We do recommend dusting the actual nests because the dust will last longer than a liquid. This is important because it can take a while for the egg to hatch and for the larvae to come into contact with the product.
Answer last updated on: 04/25/2013