The Seed Potatoes (England) Regulations 20153
1
The Seed Potatoes (England) Regulations 20154 are amended as follows.
2
In Part 1 of Schedule 2 (official labels), in paragraph 7—
a
omit “and” at the end of sub-paragraph (a);
b
after sub-paragraph (a), insert—
aa
have a unique number;
3
In Schedule 3 (specified diseases or pests, damage and defects and tolerances), for Parts 2 and 3, substitute—
PART 2Pre-basic seed potatoes of Union grade PB produced in England
Column 1
Column 2
Column 3
Column 4
Specified diseases or pests, damage and defects
Individual tolerances
Group tolerances
Collective 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 Viroid
Nil
-
-
Colorado Beetle (Lepinotarsa decemlineata (Say))
Nil
-
-
Group II
Blight (Phytophthora infestans (Mont) de Bary)
0.2%
)
)
Blackleg (Erwinia carotovora (Jones) Bergey et al spp) atroseptica (Hellmers & Dowson) Dye or Erwinia chrysanthemi Burkholder et al or both
0.2%
)
)
Soft Rots including: Watery Wound Rot (Pythium ultimum Trow)
0.2%
)
)
Pink Rot (Phytophthora erythroseptica Pethybridge) and Pit Rot
0.2%
) 0.2%
)
Dry Rot (Fusarium species)
0.2%
)
)
Gangrene (Phoma species)
0.2%
)
)
Frost damaged tubers
0.2%
)
)
Group III
Skin spot (Polyscytalum pustulans (Owen & Wake-field)) M B Ellis
0.2%
)
) 6.0%
Group IV
Black Scurf (Rhizoctonia solani Kuhn)
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 variety
3.0%
)
)
Superficial necrosis caused by potato virus Y
Nil
) 3.0%
)
Shrivelled tubers due to excessive dehydration or dehydration caused by silver scurf (Helminthosporium solani)
0.5%
)
)
Group VII
Dirt or other extraneous matter
1.0%
-
-
PART 3Basic seed potatoes and certified seed potatoes produced in England
Column 1
Column 2
Column 3
Column 4
Specified diseases or pests, damage and defects
Individual tolerances
Group tolerances
Collective group tolerances
Group I
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
-
-
Group II
Blight (Phytophthora infestans (Mont) de Bary)
0.5%
)
)
Blackleg (Erwinia carotovora (Jones) Bergey et al spp) atroseptica (Hellmers & Dowson) Dye or Erwinia chrysanthemi Burkholder et al or both
0.5%
)
)
Soft Rots including Watery Wound Rot (Pythium ultimum Trow)
0.5%
)
)
Pink Rot (Phytophthora erythroseptica Pethy-bridge) and Pit Rot
0.5%
) 0.5%
)
Dry Rot (Fusarium species)
0.5%
)
)
Gangrene (Phoma species)
0.5%
)
)
Frost damaged tubers
0.5%
)
)
Any of these Group II defects that present as a wet rot symptom
0.2%
)
) 6.0% for basic seed potatoes and 8.0% for certified seed potatoes
Group III
Skin spot (Polyscytalum pustulans (Owen & Wakefield) M B Ellis)
0.5% except Union grade E, Union grade A and Union grade B grades;
2.0% for Union grade E, Union grade A and Union grade B grades only
)
)
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 (except where powdery scab takes its cankerous form)
3.0%
) 5.0%
)
Group IV
Black Scurf (Rhizoctonia solani Kuhn)
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
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
External blemishes including damaged tubers or tubers other than diseased tubers whose shape is atypical for the variety
3.0%
)
)
Shrivelled tubers due to excessive dehydration or dehydration caused by silver scurf (Helminthosporium solani)
1.0%
) 3.0%
)
Superficial necrosis caused by strains of potato virus Y
0.1%
)
)
Group VI
Dirt or other extraneous matter
1.0%
-
-