Why does your Rhododendron micranthum have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
These tiny arachnids thrive in the warm, dry conditions often experienced by Rhododendron micranthum. They pierce the leaf cells to suck out contents, leaving behind fine silken webs and stippled white or yellow spots on the foliage.
Common in Ericaceous plants like Pink Bell Heather, these mites create webbing often accompanied by reddish-brown discoloration of the leaves as they feed on the plant's sap.
Low humidity levels in the microclimate around your Rhododendron can trigger various mite species to produce webbing as a protective habitat while feeding on tender new growth.
Your plant might also be experiencing one of these issues: