1.The pre-basic mother plants and the pre-basic material produced in the field shall be maintained in accordance with the requirements set out in Section A of the Annex for the Member States and species concerned.
2.Grafting and pruning tools and machinery shall be checked, cleaned and disinfected before and after each use on the pre-basic mother plants and the pre-basic material concerned.
3.There shall be an appropriate distance between pre-basic mother plants so as to minimise root contact between those plants. There shall also be an appropriate distance between pre-basic propagating materials so as to minimise root contact between those propagating materials.