Why does your White Cabbage O S Cross F1 have white cottony spots? Diagnose the cause and fix it with our step-by-step guide.
This is a common oomycete disease in Brassica species characterized by white, powdery growth on leaf undersides and white pustules on stems. It disrupts photosynthesis and can cause the leaves to become distorted or stunted.
This fungal pathogen produces a dense, white, cottony mycelium that can cover the cabbage head and leaves. It often leads to rapid tissue decay and the formation of small black sclerotia.
Small insects covered in a white, waxy, cottony secretion can congregate on the undersides of cabbage leaves and at the base of the plant. Their feeding causes chlorosis and eventual leaf drop.
Your plant might also be experiencing one of these issues:
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