Spray ALL your plants with an insecticidal soap, rubbing the leaves as your spraying. While the plant is still wet you can apply diatomaceous earth. Let the DE dry, and that should prevent them from coming back. Then once or twice a week wash off the DE with and reapply it.
If you were growing in room take all the plants out and disinfect the area. You can use bleach but I like to use vinegar and hydrogen peroxide. Just don't mix the two together. You spray one, let it sit for a min, then go back and spray with the other. When used this like it's actually more effective then bleach and there is less of a risk of it burning skin or staining anything. No gloves needed.
best of luck buddy
- Vin