I Have Fungus Gnats in My Houseplant Soil
I found that BT can be used for that problem but I do not know the proper mix for use in houseplant application. My BT container is older and does not have the info on it. How should it be mixed and applied.
Certified GKH Gardening Expert
This article will help with fungus gnats: https://www.gardeningknowhow.com/special/children/fungus-gnats.htm
Neem oil will also help take care of these pests. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm