Planting

(1) Malus, Pyrus or Prunus spp. must be spaced apart in such a manner as to have clean cultivation and to prevent root grafts. Varieties must be labeled in field and any varietal change within a row will require a ten (10) foot separation. No other plants or plant parts other than approved Malus, Pyrus or Prunus spp. will be permitted ill a block or field offered for certification. Container grown plants will follow the same growing procedures as outlined for field stock. (2) Virus-free scion (see 0080-6-17-.04 Scion Source) may be rooted in isolated sterilized beds with approval from the Department. Varieties will have a ten (10) foot clean space between them. Malus, Pyrus or Prunus spp. will be one hundred and fifty (150) feet from any Rosaceae. Prunus spp. will be five hundred (500) feet from other non virus-free Prunus spp.