EcoVia WH Stinging Insect Killer jet aerosol is a FIFRA 25(b)-exempt and research-based botanical insecticide. EcoVia WH aerosol delivers fast knockdown of wasps, yellowjackets and hornets. Its foaming jet spray reaches up to 18 ft. to ensure thorough coverage of the nest. It is also effective on spiders, the company says. Like other FIFRA 25(b) products, there are no notification requirements (need to verify with your state regulations), and no pyrethroid application restrictions. Because it is a water-based formula, it will not leave behind an oily residue. EcoVia WH is available in a 16-oz. can.