Answer: Mites usually cause leaves to have a silver, stippled color but they don't usually make the leaves turn brown/yellow. It is normal for azaleas to lose some of their leaves if they are the evergreen type, and all of their leaves if they are deciduous so there may not be anything at all wrong with your azaleas. You can check for mites by taking a sheet of white paper or a white index card, holding it near the center of your azalea and sharply tapping the branches. Some debris will fall. If it moves and looks like little flakes of pepper, there are mites. Spidermites also leave some tell-tale webbing between the leaves and stems and between the stems and branches. If you find no evidence of mite, you don't need to spray anything. If you do find mites, spray your azaleas with a miticide. Be sure to read the label to make sure it is safe to use on your azaleas. Good luck with your garden.
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