I used it, but my aim were to control ants, which it did relatively well. Be sure to use the horticultural grade and you really should wear a mask when applying it. Randy On Thu, Dec 8, 2011 at 11:31 AM, Bulborum Botanicum <bulborum@gmail.com>wrote: > Is there somebody with experience using Diatomaceous earth > against bugs > > Roland > > > > -- * * A long habit of not thinking a thing wrong gives it a superficial appearance of being right. - Thomas Paine --- * *