WSR 08-10-039



[ Filed April 30, 2008, 10:21 a.m. , effective May 31, 2008 ]

Effective Date of Rule: Thirty-one days after filing.

Purpose: This rule-making order amends chapter 16-324 WAC, Rules for the certification of seed potatoes, by repealing the requirement for PVY testing for Generation 1 lots.

Citation of Existing Rules Affected by this Order: Amending WAC 16-324-385.

Statutory Authority for Adoption: Chapters 15.14 and 34.05 RCW.

Adopted under notice filed as WSR 08-07-082 on March 19, 2008.

Number of Sections Adopted in Order to Comply with Federal Statute: New 0, Amended 0, Repealed 0; Federal Rules or Standards: New 0, Amended 0, Repealed 0; or Recently Enacted State Statutes: New 0, Amended 0, Repealed 0.

Number of Sections Adopted at Request of a Nongovernmental Entity: New 0, Amended 0, Repealed 0.

Number of Sections Adopted on the Agency's Own Initiative: New 0, Amended 1, Repealed 0.

Number of Sections Adopted in Order to Clarify, Streamline, or Reform Agency Procedures: New 0, Amended 0, Repealed 0.

Number of Sections Adopted Using Negotiated Rule Making: New 0, Amended 0, Repealed 0; Pilot Rule Making: New 0, Amended 0, Repealed 0; or Other Alternative Rule Making: New 0, Amended 1, Repealed 0.

Date Adopted: April 30, 2008.

Valoria H. Loveland



AMENDATORY SECTION(Amending WSR 07-11-010, filed 5/3/07, effective 6/3/07)

WAC 16-324-385   Production requirements.   (1) A grower is not eligible to produce nuclear, generation 1, or generation 2 seed potatoes, if ring rot has been detected on his or her farm during the previous two years.

(2) Prenuclear class.

(a) Prenuclear seed lots must be derived from disease tested micropropagated plants. All testing methods and laboratories must be approved by the department.

(b) A minimum of one percent (and not less than twenty samples) of prenuclear seed produced in a greenhouse must be tested and found free of potato virus X (PVX), potato virus Y (PVY), potato virus S (PVS), potato leafroll virus (PLRV), Erwinia carotovora ssp. caratovora (soft rot), Erwinia carotovora ssp. atroseptica (black leg), and Clavibacter michiganense ssp. sependonicum (ring rot).

(c) The department will inspect all facilities used in the production of prenuclear class seed potatoes on a periodic basis. Department approval is necessary in order to utilize these facilities.

(3) Nuclear class.

(a) Nuclear class seed potatoes must be propagated entirely from prenuclear plants.

(b) Each nuclear class seed lot must be distinctly separated in storage and in the field.

(c) If a ground rig is used for spraying, wide enough spacing between rows must be left, so that tires will not touch plants during the growing season.

(d) Growers must plant cut seed and single drop seed separately, with single drop seed identified.

(4) Generations 1, 2, 3, 4 and 5.

(a) Growers must leave a distinct separation of at least six feet unplanted or planted to some other crop between lots of seed potatoes from different classes. A similar separation must be left between different varieties, unless the varieties are readily distinguishable by visual observation.

(b) When more than one lot of seed potatoes is planted in the same field, growers must stake or mark the identity of each lot.

(((c) All generation 1 lots must be sampled and tested under the department's supervision for PVY at a rate of four hundred plants for every ten lots. For farms with fewer than ten generation 1 lots, a minimum of four hundred plants must be sampled and tested.))

[Statutory Authority: Chapters 15.14 and 34.05 RCW. 07-11-010, 16-324-385, filed 5/3/07, effective 6/3/07. Statutory Authority: Chapter 15.14 RCW. 00-20-070, 16-324-385, filed 10/3/00, effective 11/3/00.]

Washington State Code Reviser's Office