Gnats in the soil

Troubleshooting Pests
17

another route to consider…nematodes

https://www.amazon.com/Environmental-Factor-4003242-Beneficial-Nematodes/dp/B06VVLWWND/ref=sr_1_4?ie=UTF8&qid=1492031432&sr=8-4&keywords=nematodes+fungus+gnat

For diatomaceous earth, maybe something like this to help spread it

https://www.amazon.com/Harris-Diatomaceous-Earth-Powder-Duster/dp/B01LRMN9ZM/ref=sr_1_3?ie=UTF8&qid=1492031869&sr=8-3&keywords=diatomaceous+earth+duster

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