Look at the surface of the leaves. If your plant is indeed infested with spider mites, the leaves may have yellow blotches on them. When light falls on the leaves, you may see a silvered look or even streaks of bronze or silver.
Healthgrades Editorial Staff. White patches in the mouth are a common symptom of infection, inflammation, trauma, malignancy, and other underlying conditions and diseases. Mouth white patches result from pathogens, such as bacteria, viruses and fungi, which inflame the lining of the mouth causing swelling, redness, and ulcer formation.
Gum sores, Mouth sores, Swollen gums and White patches inside mouth. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms gum sores, mouth sores, swollen gums and white patches inside mouth including Toothbrush irritation, Coxsackie virus infection, and Canker sores.