to get rid of spider mites, crush up sum cloves of garlic (how much depends on the amount of spider mites) and mix with water, put it in a spray bottle, and spray the soil and (if u got the balls to risk your bud,) spray your plant too, if you dont want to spray the plant, leave a few cloves in the pot and make it stink of garlic, spider mites hate garlic, and will run away eventually, so theres your answer... good luck