│ │ least two consecutive years in officially registered │
│ │ ‘bonsai’nurseries, which are subjected to an │
│ │ officially supervised control regime; │
│ │ (b) the plants shall: │
│ │ (aa)at least during the two last years prior to dispatch, │
│ │ —have been grown in either an unused artificial │
│ │ growing medium or in a natural growing │
│ │ medium which has been treated by fumigation │
│ │ or by appropriate heat treatment to │
│ │ ensure freedom from harmful organisms, and │
│ │ for which appropriate measures have been │
│ │ taken to ensure that the growing medium │
│ │ has been maintained free from harmful │
│ │ organisms. │
│ │ —be potted, in pots which are placed on │
│ │ shelves at least 50 cm above ground, │
│ │ —have been subjected to appropriate treatments │
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