Why does your Lilium White Triumph 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 Lilium species. These pests pierce the lily cells to suck out sap, leading to stippling and eventual webbing coverage.
In many lily varieties, specific mite species create dense silk webs around the leaf margins and stem junctions to protect their eggs. This is often triggered by low humidity levels around the Lilium bulb.
While less common as a direct cause of 'webbing,' extreme lack of humidity can cause certain fine fungal hyphae or dust to appear web-like on the surface of lily foliage. This often coincides with mite outbreaks due to dry air.