Sevin, which contains carbaryl, is also toxic to bees, although killing bees is something to be avoided when possible. Sevin is available at most garden stores.It comes as a liquid, a wettable powder that mixes with water and as a dust spray.

How do you use Sevin dust to kill bees?

Place 2 tbsp. of Sevin dust into an empty liquid detergent bottle. Shake the bottle containing the insecticidal dust, point the opening to the hole leading to the nest and squeeze the bottle to release the contents. Do this at night when all the bees are inside.

Does Sevin kill honeybees?

Answer: Per the manufacturer label, Sevin Concentrate is highly toxic to honeybees and other bees. Do not apply this product to plants that are in bloom.