# The Seed Potatoes (England) Regulations 2015, Part 1: Pre-basic seed potatoes of GB grade PBTC produced in England

Extent: E+W

Column 1
Column 2
Specified diseases or pests, damage and defects
Individual tolerances
Group 1
Wart Disease (Synchytrium endobioticum (Schlib) Perc)
Nil
Potato Tuber Eelworm (Ditylenchus destructor Thorne)
Nil
Potato Cyst Nematode (Globodera species infesting potatoes)
Nil
Ring Rot (Clavibacter michiganensis (Smith) Davis et al spp sepedonicus (Spieck & Kotth) Davis et al)
Nil
Brown Rot (Ralstonia solanacearum (Smith) Yabuuchi et al)
Nil
Potato Spindle Tuber Viroid
Nil
Colorado Beetle (Lepinotarsa decemlineata (Say))
Nil
Candidatus Liberibacter solanacearum Liefting et al
Nil
Candidatus Phytoplasma solani Quaglino et al
Nil
Group II
Blight (Phytophthora infestans) (Mont) de Bary)
Nil
Blackleg (Dickeya Samson et al. spp. or Pectobacterium Waldee emend. Hauben et al. spp. or both
Nil
Soft Rots including: Watery Wound Rot (Pythium ultimum Trow)
Nil
Pink Rot (Phytophthora erythroseptica Pethybridge) and Pit Rot
Nil
Dry Rot (Fusarium species)
Nil
Gangrene (Phoma species)
Nil
Frost damaged tubers
Nil
Group III
Skin spot (Polyscytalum pustulans (Owen & Wakefield) M B Ellis
Nil
Group IV
Black scurf as caused by Thanatephorus cucumeris (A.B. Frank) Donk
Nil
Common Scab (Streptomyces species)
Nil
Group V
Powdery scab (Spongospora subterranea (Wallr) Legerh)
Nil
Group VI
External blemishes, including damaged tubers or tubers other than diseased tubers whose shape is atypical for the variety
Nil
Superficial necrosis caused by potato virus Y
Nil
Shrivelled tubers due to excessive dehydration or dehydration caused by silver scurf (Helminthosporium solani)
Nil
Group VII
Dirt or other extraneous matter
1.0%

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Source: https://www.legislation.gov.uk/uksi/2015/1953/schedule/3/part/1 (the official version)
Page: https://openlegislation.uk/seed-potatoes-england-regulations-2015/schedule-3/part-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.