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PDFWAC 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 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.
[Statutory Authority: RCW 15.14.015 and chapter 34.05 RCW. WSR 15-01-042, § 16-324-361, filed 12/9/14, effective 1/9/15; WSR 13-12-014, § 16-324-361, filed 5/24/13, effective 6/24/13. Statutory Authority: Chapters 15.14 and 34.05 RCW. WSR 07-11-010, § 16-324-361, filed 5/3/07, effective 6/3/07. Statutory Authority: Chapter 15.14 RCW. WSR 02-12-010, § 16-324-361, filed 5/23/02, effective 6/23/02; WSR 00-20-070, § 16-324-361, filed 10/3/00, effective 11/3/00. Statutory Authority: RCW 15.14.030. WSR 97-11-028, § 16-324-361, filed 5/14/97, effective 6/14/97.]
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