Try a few mosquito dunks rubbed together and top dress the top of the soil in your pots with a fine layer of the dunk dust and water as usual. It will help take care of those pesky gnats! And if they get too bad, wrap your air pots with panty hose. Each hole is like a different party room for those guys. If you get em under control early, you wont have much worries. Both straight away and it should take care of em quick! They breed crazy fast!
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