DE is the fine, powdery stuff they use in swimming pool filters. If it kills the bugs by dehydrating them, it would only work from when you applied until your next watering, so what's the point. Anyway, those little sob's really seem attracted to the yellow sticky traps so use those... or put your yellow tape in there right now and see if it starts catching bugs. If it does, you're home free.

PC :smokin: