Chiefer’s Den

[George]

The DE will work if you start feeding from the bottom, lose its properties while contact with water. Anyway the adults still can enter through the bottom.

Here ypu can find extended info:

Whats the best way to get rid of fungus gnats?

I have been battling these little putos for a min. Just when I think they are gone, their not! I have been using diotmatacious earth with no luck !