Ash Dieback is a serious issue for councils and landowners across the UK; it is estimated 90% of Ash trees could die of this disease with currently no known treatment.
Mae clefyd coed ynn yn fater difrifol i gynghorau a pherchnogion tir ar draws y DU; amcangyfrifir y gallai 90% o goed ynn farw o’r clefyd hwn nad oes unrhyw driniaeth ar ei gyfer ar hyn o bryd.