Spidermites..you need neem oil, or you can make a spray..soak 2 cigarettes overnight in 1/2 cup water..boil for 3 min. (kills a strain of tabac fungus) add a couple of drops of dish soap & spray undersides of leaves... BE VERY CAREFUL..this shit is a poison..so no pets, no touching liquid...etc.. also remove the top 1 or 2" of soil and replace.. good luck..they suck big time..