Harris Roach Gallon Spray uses a water-based, odorless formula kills roaches after spray dries thoroughly. This crack and crevice and contact spray keeps killing German cockroaches for up to one year. We recommend using this product with Harris Famous Roach tablets to most effectively control infestations and prevent roaches from returning. Application Apply as spot and crack and crevice treatment to areas where roaches crawl and hide, especially in hidden areas around sinks and storage areas, behind baseboards, around windows and doors, and behind and under refrigerators, cabinets and sinks. Always read and follow label directions before and during use.Contains cypermethrin as active ingredient. We recommend using this product with Harris roach tablets to effectively control cockroach infestations and prevent roaches from returning.
Thirdly, we recommend using our Roach Killer Spray, this can be sprayed as a spot treatment or crack and crevice treatment for long term residual benefits. This product was voted the #1 Best Roach Killer for 2018, based on consumer reviews.