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Observed: 2nd November 2013 By: nickprice
Added: 4th November 2013
All hornbeams in small groups in mixed native deciduous woodland (planted myself 1999) have this year developed this problem. Loss of large areas of bark on trunk and separate areas up stems to higher branches. Rough exposed surface of hard pink/purple nobbbles. No bleeding. Leaves probably okay. Other trees seem okay. What is the disease? What is the treatment? Should I notify anyone?