Why does your Chrysanthemum Victor Yellow have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
The presence of fine webbing on Chrysanthemums is a classic hallmark of spider mites, which thrive in the warm, dry conditions often favored by this cultivar. These pests pierce plant cells to suck out nutrients, leading to stippling and eventual webbing covering the leaves.
In many greenhouse environments, specific mite species target Chrysanthemums during periods of low humidity. The webbing acts as a protective micro-environment for the mites to lay eggs and move across the foliage.
While not a primary cause of webbing, extreme drought stress in Chrysanthemums can cause delicate leaf hairs (trichomes) to clump or appear as fine, dusty residue that mimics light silkiness. This often occurs when the plant's transpiration rate exceeds moisture availability.
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