SCHEDULE 3U.K.Specified diseases or pests, damage and defects and tolerances

[F1PART 2U.K.Pre-basic seed potatoes of [F2GB] grade PB produced in England

Column 1Column 2Column 3Column 4
Specified diseases or pests, damage and defectsIndividual tolerancesGroup tolerancesCollective group 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 ViroidNil--
Colorado Beetle (Lepinotarsa decemlineata (Say))Nil--
[F3Candidatus Liberibacter solanacearum Liefting et al Nil--
Candidatus Phytoplasma solani Quaglino et alNil--]
Group II
Blight (Phytophthora infestans (Mont) de Bary)0.2%))
[F4Blackleg (Dickeya Samson et al. spp. or Pectobacterium Waldee emend. Hauben et al. spp. or both]0.2%))
Soft Rots including: Watery Wound Rot (Pythium ultimum Trow)0.2%))
Pink Rot (Phytophthora erythroseptica Pethybridge) and Pit Rot0.2%) 0.2%)
Dry Rot (Fusarium species)0.2%))
Gangrene (Phoma species)0.2%))
Frost damaged tubers0.2%))
Group III
Skin spot (Polyscytalum pustulans (Owen & Wake-field)) M B Ellis0.2%)) 6.0%
Group IV

[F5Black 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

1.0%) 5.0%)

Common Scab (Streptomyces species)

Provided 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

5.0%))
Group V

Powdery scab (Spongospora subterranea (Wallr) Legerh)

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

1.0%))
Group VI
External blemishes including damaged tubers or tubers other than diseased tubers whose shape is atypical for the variety3.0%))
Superficial necrosis caused by potato virus YNil) 3.0%)
Shrivelled tubers due to excessive dehydration or dehydration caused by silver scurf (Helminthosporium solani)0.5%))
Group VII
Dirt or other extraneous matter1.0%--]