the ones in the dirt are probably just typical dirt gnats, chances are it was already in the soil your using

beer attracts them and kills them, get some cheap smelly beer and put it in a low saucer cup above your dirt
growdemon Reviewed by growdemon on . Powdery Mildew, Spider Mites and Thrips. AAAAH Hello, So two/three weeks ago i noticed some white dandruff like powder on my plant leaves. They started on the lower leaves and worked their way up. I thought it was powdery mildew until today when I noticed stuff on the underside of the leaves. I had sprayed them three times with milk and baking soda and a little bit of dish washing liquid soap. I bought cannacure (CannaCure Spray 750ml Spidermite Pest | eBay) yesterday and sprayed them, but they look worse today than they were Rating: 5