How to Remove Fungus Gnats from Plants. Houseplant or fungus gnats … those pesky, flying little buggers, that have you flailing your arms about like some sort of mad person. I’ve since done some research on control methods and I recently implemented this one … SAND. I removed 2cm (almost an inch) from the top of the soil and replaced with (play) sand (not salty sand from the beach).
AFTER: So far, so good. It’s been about 3 days and they are gone … I hope. If they return, I’ll try this one – insert a 1cm thick slice of raw potato into the soil – attracts the larvae and then dispose of it. The things we do for the love of our plants 🙂
PS> The first pic has been digitally edited 🙂 Try getting a photo of these tiny annoyances!
But I hope this can work, without having to resort to chemicals. Anyone else had a gnaughty gnat problem? What have your tried, what worked for you and what didn’t?