Why does your Lilium hybride Oceana have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Spider mites thrive in the warm, dry conditions often experienced by Oriental Lilies. They pierce cell walls to feed on the sap, leaving behind fine silken webs as they move across the foliage.
In high humidity or drought stress, these mites can rapidly colonize 'Oceana' lilies, creating dense webbing that protects their eggs. This often leads to stippling (tiny yellow dots) on the lily leaves.
Extreme lack of humidity can cause plant tissues to become brittle, and wind-blown dust can sometimes be trapped in fine silk strands produced by much smaller, non-pathogenic micro-arthropods.