Pay special attention to: When destroying cockroaches – holes and cracks in walls, door frames, thresholds, along baseboards, ventilation openings, pipe joints. For destroying ants – their movement paths "trails", cracks along thresholds, gaps between garden path tiles. For destroying bedbugs – cracks and joints in furniture, cracks along baseboards, areas where wallpaper is peeling, around door and window frames, ventilation grilles, the reverse side of carpets. For destroying flies and mosquitoes – insect landing sites, external walls of buildings, garbage collectors, breeding sites.