Why does your Viola cornuta Deep Purple Beacon have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlyThe presence of fine webbing on Viola cornuta is a classic sign of spider mites, which thrive in the warm, dry conditions often experienced by pansy-type flowers. These arachnids pierce the leaf cells to feed, leading to stippling and eventual webbing as they create protective colonies.
In many greenhouse or garden settings, this specific mite species targets Viola species during dry spells. The webbing is a structural component of their webs used for movement and protection against predators.
While less likely to produce 'webs,' extremely high humidity combined with stagnant air can sometimes cause fungal mycelium (like Botrytis) to appear as fine, hair-like filaments on the foliage.
Your plant might also be experiencing one of these issues:
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