Why does your Maranta leuconeura have white powder? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlyA fungal disease caused by high humidity and poor air circulation, which creates a visible white, flour-like coating on the leaves of Maranta. This fungus thrives when moisture sits on the foliage for extended periods.
Small, soft-bodied insects that secrete a white, waxy, cottony substance to protect themselves. They cluster in the crevices between Maranta leaves and can cause yellowing or leaf drop.
While they primarily cause fine webbing, an extremely heavy infestation can leave tiny white speckles (stippling) that look like dust on the Maranta's dark green leaves.
Hard water containing high levels of calcium or magnesium can leave white, crusty residue on the leaf surface as the water evaporates.
Your plant might also be experiencing one of these issues:
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