Why does your Malus halliana have white powder? Diagnose the cause and fix it with our step-by-step guide.
This is the most common cause of white, flour-like patches on Malus species. The fungus thrives in humid conditions with moderate temperatures, coating leaves and young shoots in a white mycelium.
While typically presenting as dark olive-green spots, early stages can sometimes appear as light-colored or pale, velvety patches on the leaves of Crabapple varieties.
Certain aphid species secrete a white, waxy substance that can look like powder or cotton wool, particularly around the stems and base of leaves in Malus halliana.
English
Italiano
