Hi, Beth, (or anyone who uses Knock-Out Gnats) :
I had a question - how much of this do you use (per gallon) on a fungus gnat infestation? My little bag suggests like 1.5 tsp per gallon for heavy infestation, so that's what I've been using. And the infestation isn't under control. But I found this page at GardensAlive that says 4-8 tsp per gallon for heavy infestation.
Which directions do you follow, that work so well?
- Maybe putting it in fresh tap water is killing the bacteria.
- Maybe it has no shelf life and needs to be made up fresh each time...
For now, at least I'm following #2 - the last batch I left in the jug for over a week, smelled terrible. And that batch I'd made with a jug of rain water, I think...