Massaria related branch breakage on London Plane

Massaria or Splanchnonema platani is a fungal disease capable of killing the bark and cambium on the branches of London Plane, Platanus x hispanica. It is becoming common in Europe but has yet to be formally identified in mainland UK. It can lead to sudden branch breakage with consequential concerns and the need to inspect for the disease and to assess its significance in terms of public safety and tree health. The Royal Parks of London has produced a Briefing Note covering disease identification and its significance.