Why does your Hosta ventricosa 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 Hosta ventricosa. They pierce the plant cells to feed on sap, leaving behind fine silk webbing and causing stippling (tiny white/yellow dots) on the leaves.
A specific subset of mites that are highly prevalent in hostas during summer heatwaves. The webbing becomes more dense as the population grows, eventually making the blue-green leaves look dull and dusty.
While thrips are more known for silvery scarring, heavy infestations can sometimes result in silk-like debris or disturbed leaf surfaces that mimic fine webbing. They feed on the epidermal cells of the Hosta leaves.
Your plant might also be experiencing one of these issues:
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