Ash trees with these symptoms have a higher risk of sudden death and collapse, so should be a priority for safety works if in a location which poses a risk to public safety.
Os yw coeden yn creu risg diogelwch uchel, hynny yw, ei bod o fewn pellter syrthio i ffordd neu gyffordd brysur, dylid cwympo’r goeden cyn gynted â phosib er mwyn cael gwared â’r risg.