Q.
insecticide dust
I have carpenter bees nesting in my cedar shakes. It is obvious where they have bored through. About how much Drione dust do I need to put into each cavity ??
A.Just a puff of a thin layer of dust. If it is too much dust the bees will avoid and try to make another hole. After dusting please watch until the activity dies out. Finish the treatment covering up the cavity to prevent water damage and future borers.