{
  "url": "https://openlegislation.uk/seed-potatoes-wales-regulations-2016/schedule-3/part-2",
  "json_url": "https://openlegislation.uk/seed-potatoes-wales-regulations-2016/schedule-3/part-2.json",
  "legislation": "wsi/2016/106",
  "legislation_title": "The Seed Potatoes (Wales) Regulations 2016",
  "legislation_url": "https://openlegislation.uk/seed-potatoes-wales-regulations-2016",
  "path": "schedule/3/part/2",
  "kind": "part",
  "number": "2",
  "heading": "Pre-basic seed potatoes of GB grade PB produced in Wales",
  "text": "Column 1\nColumn 2\nColumn 3\nColumn 4\nSpecified diseases or pests, damage and defects\nIndividual tolerances\nGroup tolerances\nCollective group tolerances\nGroup I\nWart Disease (Synchytrium endobioticum (Schlib) Perc)\nNil\n-\n-\nPotato Tuber Eelworm (Ditylenchus destructor Thorne)\nNil\n-\n-\nPotato Cyst Nematode (Globodera species infesting potatoes)\nNil\n-\n-\nRing Rot (Clavibacter michiganensis (Smith) Davis et al spp sepedonicus (Spieck & Kotth) Davis et al)\nNil\n-\n-\nBrown Rot (Ralstonia solanacearum (Smith) Yabuuchi et al)\nNil\n-\n-\nPotato Spindle Tuber Viroid\nNil\n-\n-\nColorado Beetle (Lepinotarsa decemlineata (Say))\nNil\n-\n-\nCandidatus Liberibacter solanacearum Liefting et al\nNil\n-\n-\nCandidatus Phytoplasma solani Quaglino et al\nNil\n-\n-\nGroup II\nBlight (Phytophthora infestans (Mont) de Bary)\n0.2%\n)\n)\nBlackleg (Dickeya Samson et al. spp. or Pectobacterium Waldee emend. Hauben et al. spp. or both)\n0.2%\n)\n)\nSoft Rots including: Watery Wound Rot (Pythium ultimum Trow)\n0.2%\n)\n)\nPink Rot (Phytophthora erythroseptica Pethybridge) and Pit Rot\n0.2%\n) 0.2%\n)\nDry Rot (Fusarium species)\n0.2%\n)\n)\nGangrene (Phoma species)\n0.2%\n)\n)\nFrost damaged tubers\n0.2%\n)\n)\nGroup III\nSkin spot (Polyscytalum pustulans (Owen & Wake-field)) M B Ellis\n0.2%\n)\n) 6.0%\nGroup IV\nBlack scurf as caused by Thanatephorus cucumeris (A.B. Frank) Donk Provided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-tenth of whose surface area has been affected are deemed to be unaffected by the disease\n1.0%\n) 5.0%\n)\nCommon Scab (Streptomyces species)\n5.0%\n)\n)\nProvided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-third of whose surface area has been affected are deemed to be unaffected by the disease\nGroup V\nPowdery scab (Spongospora subterranea (Wallr) Legerh)\n1.0%\n)\n)\nProvided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-tenth of whose surface area has been affected are deemed to be unaffected by the disease\nGroup VI\nExternal blemishes including damaged tubers or tubers other than diseased tubers whose shape is atypical for the variety\n3.0%\n)\n)\nSuperficial necrosis caused by potato virus Y\nNil\n) 3.0%\n)\nShrivelled tubers due to excessive dehydration or dehydration caused by silver scurf (Helminthosporium solani)\n0.5%\n)\n)\nGroup VII\nDirt or other extraneous matter\n1.0%\n-\n-",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Sch. 3 Pts. 2, 3 substituted (29.8.2020) by The Marketing of Seed, Plant and Propagating Material (Wales) Regulations 2020 (S.I. 2020/833), regs. 1, 5(4)(c)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Word in Sch. 3 Pt. 2 heading substituted (31.12.2020) by The Seed Potatoes (Wales) (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/738), regs. 1(2), 2(14)(a) (as amended by S.I. 2020/1573, regs. 1(2)(b), 2(3)(l)); 2020 c. 1, Sch. 5 para. 1(1)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/wsi/2016/106/schedule/3/part/2",
    "retrieved_at": "2026-10-28T23:31:17.660399+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}