You have mites. Kill those fuckers quick.
I foliar w/ neem to get rid of mites. Then rinse with tap water when dry. Then dust with diatomaceous earth when that's dry. I do it 2x a week.
Takes 3+ applications when real bad.
You can also blast it with the hose if it's an outdo plant.
I'd take a look at all your plants to make sure the infestation hasn't spread.
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