Also see Systemic . Any item used for potting an African Violet, leaf cuttings , peduncle cuttings , suckers or seedlings . Examples include pots and plant trays . See Slow-Release . A micronutrient .
Copper is necessary for photosynthesis and for metabolizing nutrients into usable energy sources.
Among other symptoms, a deficiency of copper can cause the appearance of white spots on leaves. More information . An elemental fungicide sometimes recommended for controlling the growth of fungus spores such as those that spread Botrytis . Copper sulfate is also indicated for use against Bacterial Leaf Blight . It is not recommended for African Violets, since it can burn foliage.