156   Obligations of occupiers of public land

(1)  An occupier of any public land on whom a general destruction obligation in relation to a pest is imposed by a pest control order must (to the extent necessary to minimise the risk of the pest causing damage on any land) eradicate any pest on the land by any lawful method (or, if the order specifies a method to be used, by the method specified).

(2)  An occupier of any public land on whom a limited destruction obligation in relation to a pest is imposed by a pest control order must (to the extent necessary to minimise the risk of the pests causing damage on any land) eradicate any pest on the land during the stages of its development or life cycle specified in the order by any lawful method (or, if the order specifies a method to be used, by the method specified).

(3)  An occupier of any public land on whom a notification obligation in relation to a pest is imposed by a pest control order must give oral or written notice to the authority for the district in which the land is situated of the presence of the pest on the land as soon as practicable after becoming aware of its presence.

(4)  An occupier of public land fulfills any obligation referred to in subsection (1) or (2) if the occupier uses a method to eradicate a pest on the land other than that (if any) specified in a pest control order applying to the land and the method used has been approved by the authority for the district in accordance with this Part.