Why does your Lilium Maytime have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
The fine webbing is a classic sign of spider mites, which thrive in the warm, dry conditions often experienced by Liliums. They pierce the lily's cells to suck out chlorophyll, leading to stippling and eventual leaf drop.
A specific strain of spider mite that is highly prevalent in greenhouse-grown Lilium species. They create dense silk webs to protect themselves and their eggs from predators and desiccation.
While not a pest itself, extremely dry air can cause the silk produced by minor mite populations to become more visible and structurally stable. Liliums prefer moderate humidity, and way too much dryness stresses the plant's cuticle.