A mix of 1 part hydrogen peroxide to 4 parts water will kill fungus gnat larvae. Allow soil to dry then water with the solution. Hydrogen peroxide promotes better root growth due to an extra molecule of oxygen and it can kill harmful bacteria and fungal growth. Misting will kill the gnats.
A mix of 1 part hydrogen peroxide to 4 parts water will kill fungus gnat larvae. Allow soil to dry then water with the solution. Hydrogen peroxide promotes better root growth due to an extra molecule of oxygen and it can kill harmful bacteria and fungal growth. Misting will kill the gnats.