I'm not currently experiencing an invasion of fungus gnats, but I anticipate their arrival when I bring a number of plants inside. I'm glad to know that BTI, short for the harder to pronounce Bacillus thuringiensis israelensis, might halt any that try to hatch in my plants.
BTI comes in a number of forms. I tend to use the 'dunks' or 'dunking' donuts' as I call them. Round here we got more than our fair share of skeeters. BTI will kill the larvae but not the adults. Wherever I find any standing water, even a few little drops in the bottom of a clay saucer, I'll toss in some BTI. My neighbors sometimes give me the fishy eye when they see me patrolling the alley with the dunks. (or bits)
I don't have any at the moment, but I know that BTI also comes in liquid form. Hmmm. Wonder if that would be cheaper in the long run? (Don't mind me. Just thinking out loud.)
If anyone wants to get techie re BTI, here's a link to Wiki:
https://en.wikipedia.org/wiki/...
