Wash. Admin. Code § 16-354-070
(2) Each entire registered mother block may have no more than the following percent of affected plants:
| Tolerance | |
| Downy mildew | 1% |
| Visible nematode damage | 1% |
| Verticillium wilt | 0 |
| Ilar viruses | 0 |
| Arabis mosaic viruses | 0 |
| Hop stunt viroid | 0 |
[Statutory Authority: Chapters 15.14 and 34.05 RCW. WSR 09-18-115, § 16-354-070, filed 9/2/09, effective 10/3/09. Statutory Authority: Chapter 15.14 RCW. WSR 98-09-049, § 16-354-070, filed 4/15/98, effective 5/16/98. Statutory Authority: RCW 15.14.030 (2), (5). WSR 95-18-034 (Order 5083), § 16-354-070, filed 8/28/95, effective 9/28/95. Statutory Authority: Chapters 15.14 and 17.24 RCW. WSR 91-08-016 (Order 2077), § 16-354-070, filed 3/27/91, effective 4/27/91. Statutory Authority: Chapter 15.14 RCW. WSR 85-15-046 (Order 1867), § 16-354-070, filed 7/16/85; Order 1264, § 16-354-070, filed 5/10/72.]