Live Stoner Chat Live Stoner Chat - Oct-Dec '25

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My gnats were driving me crazy for a while, and eating the roots of my seedlings. I tried the mosquito bits, but what really worked for me was Gnatrol. It's got the same active ingredient as mosquito bits, live bacillus thurigensis (BT). It's a beneficial bacteria that give the gnat larvae indigestion so they can't eat or grow up to be gnats. The Gnatrol has a lot more of the BT than mosquito bits. The smallest package is a lifetime supply for a home-grower. I used 1 teaspoon per gallon of my regular feed, mixed in warm water the day before, so the bacteria can multiply (feeding on my nutes I guess). By the next day my nutes turned cloudy with bacillus thurigensis. If I'm watering multiple gallons, I use the Gnatrol gallon last, so one gallon is enough for several plants. Do it again the following week after any eggs have hatched. My gnats disappeared on day 1, but I did the followup 7 days later, and again any time I see a gnat. I did some research on brewing your own bacillus thurigensis. Their favorite temperature is around 98°F. I treat them like yeast, and make sure my nutes are below 100° or 110°F when I put the Gnatrol in there, to avoid killing those magical bacteria.
 
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