Why does your Nephrolepis exaltata (Boston Fern) have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlySpider mites thrive in the low-humidity environments common to Boston Fern care, feeding on the underside of fronds and creating fine silk webs. Their feeding causes stippling (tiny yellow dots) on the fern foliage.
As the mite population grows, the webbing becomes denser and covers larger areas of the plant to protect the colony from predators and desiccation. This is often accompanied by a dull, dusty appearance on the fronds.
While not a primary cause of webbing, extremely dry air can cause frond edges to shrivel and become brittle, which may trap dust or debris in a way that mimics fine silk. However, true webbing is almost always biological.
Your plant might also be experiencing one of these issues:
English
Italiano
