In order to prevent the appearance or to combat the proliferation of the species appearing on the list provided for in article L. 1338-1 and which are likely to harm human health, any owner, tenant, operator, manager of built or unbuilt land, beneficiary or occupier in any capacity whatsoever shall implement, within a period defined by the prefectoral order mentioned in article R. 1338-4, the measures determined in this same order.