during the winter months, spider mite colonies do all they can to move to safer indoor havens.
Yes, definitely sounds like mites. Flo is bad about harboring them (my buddy up the road is growing some, it likes to hang on to the spider mites), and I think just to be safe, you may want to give your flo a sponge bath just in case,
.... doing it right after a watering or feeding is the best time and using cold water with the sponges too. It will get them off, and allow the plant to immediately begin "healing" (not the wounds, but recovering energy and resilience). Doing it at the time of a watering or feeding allows for some extra comfort, as the mites won't want to venture into places with such high humidity and low temps (that is assuming you water/feed at lights on). If you repeat the process every couple days, it should make sure you get rid of them.
Once you start seeing spidermites webbing, its time to start breaking out the Neem/garlic/pyrethium, as just cold water wouldn't be enough to completely get rid of them after that point, it would just slow their progress and development
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