PDFWAC 16-350-030
Requirements for registered seed blocks.
(1) The department will assign a registration number to each registered seed tree.
(2) Only registered trees are permitted in a registered seed block.
(3) Prunus seed blocks must be located at least one hundred feet from any nonregistered Prunus plants.
(4) The ground in a seed block and for a distance of twenty feet on all sides around it must be kept either clean cultivated or in ground cover relatively free of broadleaf weeds.
(5) Registered seed trees must be propagated from foundation or registered scion wood and rootstock that has been demonstrated to be free of all virus or virus-like diseases.
[Statutory Authority: Chapter 15.14 RCW. WSR 00-19-036, § 16-350-030, filed 9/12/00, effective 10/13/00; WSR 90-23-006 (Order 2058), § 16-350-030, filed 11/9/90, effective 12/10/90; Order 1331, § 16-350-030, filed 1/15/74; Order 1300, § 16-350-030, filed 3/26/73; Order 951, Regulation 2(c), filed 7/2/64; Order 890, Regulation 2 (part), effective 9/17/62.]