Used this shyt when i had a roach outbreak(don't ask...bought a big tv from a nasty ex for cheap, shoulda known better, and they was in there shyt was like a nightmare) and after going thru a few Raid fumigation bombs this shyt worked quick and easy. Its basically just Boric Acid which you have to be careful with if you have pets or small kids...but i'd venture to say this shyt would wipe out any pest infestation you might have...ants, spiders, mice, etc...