Fungus Gnats in Seedling Trays: Larvae Kill Roots Before You See Damage
The small dark flies hovering over your seedling trays are not the problem. The problem is what they left in your potting mix three weeks ago. According to UC IPM, adult fungus gnats don’t damage plants — their larvae do. And by the time you notice adults flying around, a generation of white, translucent larvae … Read more