Why does your White Cabbage Strukt F1 have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
These microscopic arachnids feed on the undersides of cabbage leaves, piercing cells and injecting saliva which causes stippling. The fine webbing is a characteristic defensive silk structure used for movement and protection within the colony.
While primarily known for consuming leaf tissue, early instar larvae can produce fine silken threads while moving between cabbage leaves. This webbing often accompanies small, irregular holes in the foliage.
In extremely dense cabbage plantings with poor airflow, high humidity can cause fungal hyphae to appear as fine, hair-like structures on the leaf surface. This is often mistaken for insect webbing but lacks the organized structure of mite silk.
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