Skin Lightening Treatments. Skin lightening products -- also known as bleaching creams, whiteners, skin brighteners, or fade -- work by reducing a pigment called melanin in the skin. Most people who use lighteners do so to treat skin problems such as freckles, age spots, acne scars, or discoloration related to hormones.he active ingredient in some skin lighteners is mercury, so bleaching can lead to mercury poisoning. Mercury is a toxic agent that can cause serious psychiatric, neurological, and kidney problems.
Spider mites - outdoors. Spider mites are very common pests of outdoor plants. The mites suck juices from the plants, causing the plants to look dull and unhealthy. Mites also cause plants to lose vigor so that they may be unable to overcome a severe infestation, resulting in the plant's death. In Missouri, the most common outdoor spider mite is the two-spotted spider mite.
1 Not enough sunlight: Gardenias need at least eight hours of full sunlight each day.  Pests: Check your plants for pests underneath the leaves, in the soil, and on the stems. The type of pest will determine which pesticide you will use. Spider mites commonly cause brown spots, and they can be treated with Neem.