Why does your Viola x wittrockiana (Pansy) have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Spider mites are the most common cause of fine webbing on pansies, especially in warm, dry conditions. They feed on the underside of leaves, causing stippling (tiny white dots) and creating silk webs to protect themselves and their eggs.
A specific species of spider mite that thrives in high temperatures, often causing pansy foliage to turn bronze or yellow. The webbing becomes more dense as the population increases, eventually covering entire flower heads.
While less common for 'webbing,' certain fungal hyphae can appear as fine, thread-like structures on pansy petals in extremely high humidity. This is usually accompanied by soft, rotting tissue rather than structural silk.
Your plant might also be experiencing one of these issues:
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