Spider%20Mites (Tetranynchus%20urticae) - These%20tiny%20mites%20use%20their%20toothpick-like%20mouthparts%20to%20feed%20upon%20the%20surface%20of%20leaves.%20This%20causes%20localized%20yellow%20to%20brown%20spots%20to%20appear%20on%20affected%20plants.%20Heavily%20infested%20plants%20will%20see%20leaf%20defoliation%20and%20gradual%20dieback.