Help! I left my flat and all the various pots (from fern to cactis) for two weeks and came back to find it full of what I think is "fungs gnats" , is there a way to clear pots from their larvae that wouldn't harm my succulents and bulbs ? Meanwhile I mindlessly crush those flies but it doesn't seem to end
The first thing I would so is
Second, larvae death. You can try drenching the soil with 1 part hydrogen peroxide to 4 parts water, which will hopefully kill a lot of them on contact. Another method is laying raw potato slices on top of the soil. Gnat larvae are drawn to them for whatever reason. Leave them for a few hours or up to two days, and then lift them up to check – they should be full of larvae. Discard the slices.
For the adult gnats, sticky tape is good. BEST is getting yourself a sundew with lots of sticky leaves – I haven’t had a gnat problem since!