Will this product kill wasp and carpenter bees?

Yes it will Carl! For control of carpenter bees in structures, we would recommend spraying the liquid directly into bee entrance holes. Leave the entrance holes open for 24 hours to be certain that returning adult bees are killed. When there is no activity, the hole may be sealed with a suitable sealant. For wasps, hornets, & yellow jackets we would recommend applying to late in evening when insects are at rest. Jessica