Why does your Canna indica 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 indica. They feed on the undersides of leaves, secreting silk that forms a characteristic fine webbing, which eventually leads to stippling and yellowing of the foliage.
In periods of low humidity, these mites can rapidly colonize large Canna leaves. The fine webbing is a defensive structure used to protect the colony and facilitate movement across the expansive leaf surfaces.
While not a primary cause of webbing, extremely dry air can stress Canna indica, making the plant more susceptible to mite outbreaks and causing leaf edges to curl in a way that may trap dust or debris resembling web-like patterns.
Your plant might also be experiencing one of these issues:
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