Why does your Chrysanthemum Pico Exota Yellow have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Spider mites are the most common cause of fine silken webbing on Chrysanthemums, especially in warm, dry conditions. These arachnids pierce plant cells to feed, leading to stippling (tiny yellow dots) on the leaves and characteristic webs around stems and buds.
In greenhouse or indoor environments, these mites thrive on Chrysanthemums when humidity is low. The webbing serves as a protective micro-environment for their eggs and nymphs, often concentrated on the undersides of foliage.
While less common than pests, extremely high localized humidity combined with stagnant air can sometimes trap fungal hyphae or dust in a way that mimics fine web-like structures on Chrysanthemum foliage.