Why does your Brassica Pigeon F1 Round White have white powder? Diagnose the cause and fix it with our step-by-step guide.
This fungal disease manifests as white, flour-like patches on the leaves of cabbage. It thrives in high humidity and moderate temperatures, often spreading rapidly through dense Brassica foliage.
While larvae themselves are caterpillars, their feeding patterns and leftover silk/frass can sometimes appear as white debris or pale scarring on the cabbage leaves.
Severe nutrient deficiencies, specifically molybdenum or nitrogen, can cause new growth to appear pale or white instead of green. This is a physiological issue rather than a surface coating.
Your plant might also be experiencing one of these issues:
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