Why does your Canna Yellow 767 have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Spider mites thrive in the warm, dry conditions often experienced by Canna lilies. They feed on the undersides of leaves, injecting saliva that causes stippling and the production of fine silk webbing to protect their colonies.
In high humidity or drought stress, these mites can rapidly colonize Canna foliage, creating dense web structures around the leaf margins and stems to facilitate movement across the plant.
While not biological webbing, heavy dust buildup on the large, broad leaves of Canna can sometimes appear as a fine, greyish film or 'web-like' coating when combined with high humidity.
Your plant might also be experiencing one of these issues:
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