SureKill® CT-511® is a dual-synergized pyrethrum formula that kills and repels common flying and crawling insects including, house flies, gnats, mosquitoes, spiders, ants, and bed bugs (see label for a complete listing). SureKill CT-511 can be used as a space spray, contact spray, and in cracks and crevices. When used as directed, it can be applied in bottling plants, breweries, homes, restaurants, schools, and other buildings as listed on the label.