I didn't see spider mites all through veg, didn't see until 3rd week of flower. Hit her with the diatomaceous earth a week ago, and hosed her down twice yesterday and once this morning and will again in a few hours. She really perked up after yesterday spray. People say don't spray during flower, I say it rains in it's natural habitat often and it does something for the plant, and if your not letting your plant get wet then pest will have a easier time to feast.