Black - appears in the form of dry carbon black film on aukubah, buksusah, laurels. Called a carbon black fungus settles on secretions of aphids, whitefly, mealybug. By itself, the plaque is not harmful to plants, but it clogs the stomata on leaves, thus disrupting the process of respiration. Plant growth slows and weakens. Control measures. Timely spraying against pests, forming a sweet selection. Affected plants are cleaned using a sponge soaked in soapy water and treat systemic fungicide against pests.