Harris Boric Acid Roach Power with lure kills Roaches, Palmetto Bugs, Waterbugs and Silverfish. Puffer bottle includes nozzle tip to reach into cracks and crevices where insects hide. Continues to kill roaches, palmetto bugs, water bugs and silverfish for weeks after application as long as it's kept dry. Insects coming into contact with the powder will die within 72 hours after initial contact.
There are a few insecticides for roaches that are applied as dust, but one of the safest, and most widely recognized is boric Acid. There is also Diatomaceous Earth, but for roaches our Harris Experts recommend using boric acid as the most effective solution. Roaches will die after they come in contact with the boric acid when they crawl through the treated area. The particles will attach to their legs and then is ingested when they preen. They will tend to avoid heavy application so using the puffer or applicator, you will want to apply fine amounts with small puffs into the voids and cracks. Here are key areas that you should be applying boric acid for german roaches, crack and crevices along edges and corners of cabinets, the junction between the wall and the floor. Plumbing penetrations and openings in walls. Another application location is under cabinets in bathroom and kitchens, this is a void or hollow area that is covered by a kick panel. Read More About Application Recommendations for Roach at University of Kentucky Cockroach Elimination in Homes and Apartments