I'm having a problem with what I suspect are fungus gnats. There are only a few of them now, but I want to prevent more from showing up.
The problem seems to have started when I brought home a couple of hosta plants from a garden expo last weekend. The soil they were potted up in was very wet. A few days after I brought the plants home the gnats showed up, so I'm wondering if maybe the larvae traveled with the potted hostas.
I need to control the gnats organically because I have edible herbs growing in the same indoor location (under a light setup in my home office.) Any suggestions? I imagine sticky traps might work for the adults, but how can I control the larvae?