Powerful wasp and hornet killer is formulated to be one of the most powerful insecticides available. Provides instant knockdown. Sprays up to 20 ft. Kills nests and insects on contact, with residual action. Dielectric breakdown voltage of 40,700. Kills wasps, hornets, yellow jackets and bees. Physical Form: Liquid; Pest Type: Bees; Hornets; Wasps; Yellow Jackets; Capacity (Volume): 12 oz; Packing Type: Aerosol Spray.. Powerful wasp and hornet killer is formulated to be one of the most powerful insecticides available. Provides instant knockdown. Sprays up to 20 ft. Kills nests and insects on contact, with residual action. Dielectric breakdown voltage of 40,700. Kills wasps, hornets, yellow jackets and bees.