WSR 14-21-175
PROPOSED RULES
DEPARTMENT OF AGRICULTURE
[Filed October 22, 2014, 10:03 a.m.]
Original Notice.
Preproposal statement of inquiry was filed as WSR 14-18-089.
Title of Rule and Other Identifying Information: Chapter 16-324 WAC, Certification of seed potatoes, the agency is proposing to amend the certification requirements for seed potatoes by:
(1) Repealing the requirement for laboratory testing of lots entered in the postharvest testing for potato virus Y (PVY);
(2) Clarifying the definition of seed potato farm;
(3) Requiring a certificate of compliance for evidence of eligibility for the transfer of seed lots between seed potato farms;
(4) Authorizing the department to permit seed growers to plant lots in which the eligibility hasn't been determined under certain conditions; and
(5) Including the bacterium Candidatus liberibacter with the tolerance for phytoplasmas.
This proposal is the result of petitions submitted by the Washington seed potato commission and the Washington potato commission.
Hearing Location(s): Washington State University, Whatcom County Extension, 1000 North Forest Street, Suite 201, Small Conference Room, Bellingham, WA 98225, on November 25, 2014, at 11:00 a.m.
Date of Intended Adoption: December 9, 2014.
Submit Written Comments to: Henri Gonzales, P.O. Box 42560, Olympia, WA 98504-2560, e-mail hgonzales@agr.wa.gov, fax (360) 902-2094, by November 25, 2014.
Assistance for Persons with Disabilities: Contact Henri Gonzales by November 18, 2014, TTY (800) 833-6388, or 711.
Purpose of the Proposal and Its Anticipated Effects, Including Any Changes in Existing Rules: This chapter establishes standards for seed potato certification. The proposed amendment repeals the requirement for laboratory testing of seed potato lots entered in the postharvest test. The proposal also clarifies the definition of "seed potato farm," defines the documentation needed when transferring seed potatoes to another seed farm within the state, and adds the bacterial pathogen Candidatus liberibacter to the phytoplasma tolerance. The current rule requires all generation 1 (G1) lots over 1/4 acre and all lots sold to other seed potato farms to be postharvest tested. The postharvest test also includes a laboratory test for PVY. Although the postharvest test results don't affect the status of certification, they do affect the eligibility for recertification. This proposal will repeal the laboratory test component of the postharvest test and reduce costs to program participants. A more precise definition of seed potato farm and specifying documentation to confirm eligibility of seed potato lots purchased from other growers within the state will increase transparency of the program without additional costs to the growers. Adding a permit section to the rule will protect the growers from unforeseen problems such as unusual weather that could delay planting.
Reasons Supporting Proposal: Seed potato certification is an effective means of controlling systemic diseases/pests such as virus diseases in commercial potato crops. As a vegetatively propagated annual crop, potatoes tend to accumulate viruses that eventually affect production and quality. Washington commercial potato growers rely on certified seed to minimize the effects of these pests. Growers want to eliminate redundancy in the postharvest test, clarify eligibility, and add a new emerging pest to the tolerances for field inspections.
Statutory Authority for Adoption: RCW 15.14.015 and chapter 34.05 RCW.
Statute Being Implemented: RCW 15.14.015.
Rule is not necessitated by federal law, federal or state court decision.
Name of Proponent: Washington seed potato commission and the Washington potato commission, governmental.
Name of Agency Personnel Responsible for Drafting, Implementation, and Enforcement: Tom Wessels, 1111 Washington Street S.E., Olympia, WA 98504-2560, (360) 902-1984.
No small business economic impact statement has been prepared under chapter 19.85 RCW. This proposal imposes no additional regulations or costs on Washington businesses.
A cost-benefit analysis is not required under RCW 34.05.328. The Washington state department of agriculture is not a listed agency under RCW 34.05.328 (5)(a)(i).
October 22, 2014
Brad White
Assistant Director
AMENDATORY SECTION (Amending WSR 13-12-014, filed 5/24/13, effective 6/24/13)
WAC 16-324-361 Definitions.
"Certification" means that the lot of seed potatoes was inspected and meets the requirements of this chapter.
"Cull" means any lot of potatoes rejected for certification for any reason.
"Department" means the department of agriculture of the state of Washington.
"Director" means the director of the department of agriculture or his/her duly appointed representative.
"Disease tested" means tested for and found free of all of the following diseases: Potato virus A (PVA), potato virus M (PVM), potato virus S (PVS), potato virus X (PVX), potato virus Y (PVY), potato leafroll virus (PLRV), potato mop top virus (PMTV), potato spindle tuber viroid (spindle tuber), Erwinia carotovora ssp. carotovora (soft rot), Erwinia carotovora ssp. atroseptica (black leg) and Clavibacter michiganense spp. sepedonicus (ring rot).
"ELISA testing" means laboratory testing by enzyme-linked immunosorbant assay or other equivalent methodologies.
"Micropropagated" means potato stock propagated using aseptic laboratory techniques and culture media to promote plant tissue growth.
"Microtubers" means tubers produced in vitro by a micropropagated plant or plantlet.
"Minitubers" means tubers produced under controlled greenhouse conditions.
"Nematode" means plant parasitic nematodes capable of infesting potatoes, including but not limited to the genus Meloidogyne.
"Nuclear stock" means plantlets, microtubers, minitubers, or seed potatoes produced from prenuclear stock, and grown in the field for the first time.
"Plot" means a seed potato planting that is 0.25 acre or less in size.
"Powdery scab" means the disease caused by the fungus Spongospora subterranea.
"Prenuclear" means micropropagated plants or tubers and plants or minitubers produced in a greenhouse.
"Quarantine pest" means a pest of potential economic importance and not yet present in the state, or present but not widely distributed and being officially controlled.
"Recertification" means the process of certifying a seed lot that was certified the previous year.
"Rogue" means removing diseased or undesirable plants, including all associated plant parts, from a seed potato field.
"Seed lot" means a field, in whole or in part, or a group of fields producing seed potatoes, or the potato tubers harvested from a seed potato field.
"Seed potato farm" means a separate seed potato enterprise, including all land, equipment, storages and all facilities used to produce only certified seed potatoes.
"Seed potatoes" means vegetatively propagated tubers used for potato production.
"Seed source" means seed potatoes produced by an individual ((grower)) seed potato farm within a particular seed production area.
"Trace" means a barely perceivable indication of plant disease that amounts to less than 0.001 percent of sample.
"Tolerance" means the maximum acceptable percentage of potato plants or tubers that is diseased, infected by plant pests, defective or off-type based on visual inspection or laboratory testing by the director or other authorized person.
"Unit method" means a method of planting in which cut seed pieces from one tuber are dropped consecutively in a row, or in which all tubers from one plant are dropped consecutively in a row.
AMENDATORY SECTION (Amending WSR 04-12-026, filed 5/26/04, effective 6/26/04)
WAC 16-324-375 Application and withdrawal.
(1) To apply for certification, applicants must use the form provided by the department and furnish all information requested, including the date, name, signature and address of the applicant, lot number, seed source identification number, variety, class planted, acres, date planted, seed spacing at planting, average length of rows, year the field was last cropped to potatoes, along with their variety and lot number, and a map of the field location. Applications for certification must reach the department on or before June 15 of each year, accompanied by the appropriate fee, field location maps and evidence of eligibility such as tags or certificates. A North American Certified Seed Potato Health Certificate is required for evidence of eligibility for seed lots originating in other states or Canada, and must be submitted with the application. A certificate of compliance is required for evidence of eligibility and must be submitted with the application for seed lots originating in Washington state except when planted back on the same seed potato farm. Unless prior approval has been granted, late applications will be assessed a late fee of twenty dollars per application. The department will not accept applications after July 10.
(2) Separate applications are required for each variety, seed source, and seed lot except as described in subsection (5) of this section.
(3) Separate applications are required for each field location that is separated by more than one hundred feet.
(4) Growers may withdraw a seed potato lot from certification for any reason by notifying the department in writing.
(5) Growers may use a single application for multiple varieties planted in a field plot totaling 1/8 acre or less. The application must contain the information required in subsection (1) of this section for each variety. Growers shall use one identification number for the field plot with a separate letter designation for each variety in the field plot.
AMENDATORY SECTION (Amending WSR 13-12-014, filed 5/24/13, effective 6/24/13)
WAC 16-324-391 Eligibility requirements.
(1) Only seed potatoes derived from plants that have been disease tested and certified by an official certification agency are eligible for certification.
(2) Only seed lots that meet or exceed the minimum requirements as established in this chapter are eligible for certification. A seed lot that has more than a trace amount of virus disease noted during any field inspection is not eligible for recertification, unless it has been post-harvest tested and meets the minimum standards established in WAC 16-324-420.
(3) A post-harvest test is required for seed lots that will be recertified, except when planted back on the same seed potato farm.
(4) In order to be eligible for certification in Washington state, seed lots from other states or countries must be eligible for recertification in the state or country of origin and must meet the requirements of this chapter.
(5) A seed lot blended from two or more different sources of seed is not eligible for recertification.
(6) A seed lot infected with powdery scab is not eligible for recertification.
(7) Generation 5 (G5) seed lots are not eligible for recertification.
(8) The director may grant written permission to allow seed potato lots that fail to meet the eligibility requirements to be planted for recertification. Such written permission shall specify the conditions under which planting is allowed. Prior to granting permission, the director shall consult with the Washington state seed potato commission.
AMENDATORY SECTION (Amending WSR 13-12-014, filed 5/24/13, effective 6/24/13)
WAC 16-324-398 Field inspection disease tolerance.
(1) Compliance with a 0.0% tolerance is not intended, nor should it be construed, to mean that the lot inspected is free from the disease. It means that the disease was not detected during visual inspections of the seed lot.
(2) First and second field inspection tolerances, expressed as percentages.
Factor
Nuclear
G 1
G 2
G 3
G 4
G5
Varietal mixture
0.10
0.10
0.20
0.30
0.40
0.50
Mosaic
0.00
0.10
0.25
0.50
0.75
1.00
Leafroll
0.00
0.10
0.25
0.30
0.50
0.50
Total visible virus
0.00
0.20
0.50
0.80
1.25
1.50
Phytoplasmas (including Candidatus liberibacter)
0.00
0.00
0.10
0.20
0.50
1.00
Black leg
0.00
0.10
0.50
1.00
2.00
*
Ring rot
0.00
0.00
0.00
0.00
0.00
0.00
Nematode
0.00
0.00
0.00
0.00
0.00
0.00
Spindle tuber viroid and other quarantined pests
0.00
0.00
0.00
0.00
0.00
0.00
*Tolerance for black leg does not apply to G5.
AMENDATORY SECTION (Amending WSR 13-12-014, filed 5/24/13, effective 6/24/13)
WAC 16-324-409 Post-harvest test requirements.
(1) Post-harvest testing is required for the following lots:
(a) All Generation 1 lots except lots that are less than 0.25 acre and planted back on the same seed potato farm;
(b) Seed lots sold for recertification; and
(c) Lots for which a post-harvest test is required by WAC 16-324-399.
(2) Testing of seed lots submitted for post-harvest testing in subsection (1)(a) and (b) of this section ((must also be)) by ELISA ((tested)) for PVY is optional. Seed lots officially sampled by the department for PVY testing will be subject to disease tolerance listed under WAC 16-324-420.
(3) A minimum of four hundred tubers must be submitted for each seed lot entered for post-harvest testing. Seed lots less than 0.25 acre in size must submit a minimum of four tubers per total hundred weight with a minimum of fifty tubers.
(4) The applicant is responsible for the cost of post-harvest testing.
(5) Seed lots in the post-harvest test which fail to comply with the disease tolerance requirements set forth in WAC 16-324-420 are not eligible for recertification.
(a) The applicant must notify in writing all receivers of any seed lot that failed to comply with post-harvest tolerances set forth in WAC 16-324-420.
(b) Acceptance of a seed lot that fails to comply with the tolerances set forth in WAC 16-324-420 must be based on a written buyer/seller agreement. The grower must provide the department with a copy of the written agreement within thirty days of receiving the post-harvest results.