Rosemary oil was found to create up to a 100% roach mortality rate at a concentration range of 2.5% to 30%. So mix it with water and spray away at your problem areas! However, other oils can help.

Raid Ant & Roach Aerosol Bug Spray kills a wide variety of insects including Cockroaches, Waterbugs, Palmetto bugs, Ants, Silverfish, Carpet Beetles, Crickets, Earwigs, Household Spiders ...

Black Widow Spiders Kills on contact and keeps killing with residual action for up to 4 weeks* * Roaches and Carpenter ants Ant & Roach spray with no lingering chemical odor Easy-to-use ant ...

One common roach spray is Bengal, which contains permethrin ... while boric acid doesn't work if it gets wet, for example. Check the instructions on your chosen product to track when you should ...