Materials include two types of hedges and glass
Garden waste has been fly tipped in the Axnfell Plantation car park in recent days.
Garff Commissioners say it includes glass and two types of hedge plants - griselinia and leylandii.
A red 'tipper truck' was also seen leaving the car park which the local authority says 'may or may not be' involved with the incidents.
Anyone with information should contact the commissioner's offices, via admin@garff.im, DEFA by emailing forestry@gov.im or by calling Ramsey Police Station on 812234.
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