Arbory and Rushen Commissioners are urging residents to report a dog owner who it claims is letting their pet rip out tree saplings and protective tubes.
The local authority believes an uncontrolled dog has wrecked Ballakilley Park, which isn't yet open to the public.
It says considerable time and effort as well as ratepayers' money has been spent on the planting scheme and it's determined to see the individual prosecuted.
Trees were planted last year by volunteers from local charities and businesses and has been maintained by the commissioners since then.
Gales put two ferry sailings at risk tonight
Should the Island throw a birthday party for Barry Gibb?
Warning issued over icy roads
High ground could see 4 inches of snow on Saturday night
Mountain Road unlikely to open before Monday
Yellow warning for freezing temperatures tonight
School bangers night called off
AK47 and Uzi handed in to police