Here’s some tips - I am trying after discovering gnats buzzing around my C&G garden. I suspect the culprit was an invasion due to the mold developing from seeds I was attempting to sprout or a sickly mint plant from Trader Joe’s. So I discarded the seeds and TJ’s plants. Really love my C&G and want to keep it healthy and thriving.
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Spray (mist bottle) 1:4 ratio of hydrogen peroxide in water. It kills the gnats on contact. And added some of it to the water tank & soil. Harmless to humans and plants.
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Sprinkle cinnamon powder (anti-fungal) on the pods soil. Gnats hate dry soil. Sand is another alternative - among other things like diatomaceous earth - but I want to keep my system as non-toxic and clean as possible.
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Place a little jar of apple cider vinegar or sweet wine (gnats love it) to attract gnats and put a lid with little holes (I used a dollar store shaker jar lid) to trap them inside.
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Post it note (gnats love the color yellow) with Vaseline on it - as a fly trap… I put it on the backside of my C&G tank. So it is not unsightly… but paint stores have a variety of free yellow sample cards… so will see if brighter colors work better.
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Some YT hacks swear by seeping the mosquito pellets in water… but I am not sure if that will be toxic? Anybody know about that?
