Why does your Lilium hybrid Litouwen have white powder? Diagnose the cause and fix it with our step-by-step guide.
This is a fungal disease caused by high humidity and poor air circulation around the lily foliage. It manifests as a distinctive white, talcum-like coating on the leaves and stems of Lilium hybrids.
While often associated with gray mold, early stages of Botrytis on lily petals and leaves can appear as pale or whitish necrotic spots. This fungus thrives in damp, cool environments common to hybrid lilies.
Severe mite feeding can cause a 'stippling' effect on lily leaves that appears as tiny white or silvery dots. In high densities, the fine webbing produced can look like a light white dust on the undersides of leaves.
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