SCHEDULE 3SPECIFIED DISEASES OR PESTS, DAMAGE AND DEFECTS AND TOLERANCES

Regulations 2(3), 9(3), 12(5) and 21(1)(3) and (4)

PART IPre-basic seed potatoes of pre-basic TC class produced in Wales

Column 1

Column 2

Specified diseases or pests, damage and defects

Individual 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)

Nil

Blackleg (Erwinia carotovora (Jones) Bergey et al. spp. atroseptica (Hellmers & Dowson) Dye or Erwinia chrysanthemi Burkholder et al. 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 (Rhizoctonia solani Kuhn)

Nil

Common Scab (Streptomyces species)

Nil

GROUP V

Powdery scab (Spongospora subterranea (Wallr.) Legerh.)

Nil

GROUP VI

External blemishes or tubers other than diseased tubers whose shape is atypical for the variety

3.0%

GROUP VII

Dirt or other extraneous matter

1.0%

PART IIPre-basic seed potatoes of pre-basic 1, pre-basic 2, pre-basic 3 or pre-basic 4 class produced in Wales

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)

0.2%

—

—

Blackleg (Erwinia carotovora (Jones) Bergey et al. spp. atroseptica (Hellmers & Dowson) Dye or Erwinia chrysanthemi Burkholder et al. or both)

Nil

)

)

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 & Wakefield) M. B. Ellis)

0.2%

)

) 4.0%

GROUP IV

Black Scurf (Rhizoctonia solani Kuhn)

1.0%

) 3.0%

)

Provided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-eighth of whose surface area has been affected are to be deemed to be unaffected by the disease.

Common Scab (Streptomyces species)

3.0%

)

)

Provided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-quarter of whose surface area has been affected are to be deemed to be unaffected by the disease.

GROUP V

Powdery scab (Spongospora subterranea (Wallr.) Legerh.)

1.0%

)

)

Provided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-eighth of whose surface area has been affected are to be deemed to be unaffected by the disease.

GROUP VI

External blemishes or tubers other than diseased tubers whose shape is atypical for the variety

1.0%

—

—

Superficial necrosis caused by potato virus Y

Nil

GROUP VII

Dirt or other extraneous matter

1.0%

—

—

PART IIIBasic seed potatoes and certified seed potatoes produced in Wales

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)

1.0%

)

)

Blackleg (Erwinia carotovora (Jones) Bergey et al. spp. atroseptica (Hellmers & Dowson) Dye or Erwinia chrysanthemi Burkholder et al. or both)

1.0%

)

)

Soft Rots including Watery Wound Rot (Pythium ultimum Trow)

1.0%

) 1.0%

)

Pink Rot (Phytophthora erythroseptica Pethybridge) and Pit Rot

1.0%

)

)

Dry Rot (Fusarium species)

1.0%

)

)

Gangrene (Phoma species)

1.0%

)

)

Frost damaged tubers

1.0%

)

)

Provided that in respect of seed potatoes of a Community Grade the individual tolerances listed in column 2 and the group tolerances listed in column 3 do not exceed 0.5%.

GROUP III

Skin spot (Polyscytalum pustulans (Owen & Wakefield) M. B. Ellis)

0.5% except for A and CC classes;

)

)

2.0% for A and CC classes only

Powdery scab (Spongospora subterranea (Wallr.) Legerh.)

3.0%

) 4.0%

) 4.0%

Provided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-eighth of whose surface area has been affected are to be deemed to be unaffected by the disease (except where powdery scab takes its cankerous form).

GROUP IV

Black Scurf (Rhizoctonia solani Kuhn)

3.0%

)

)

Provided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-quarter of whose surface area has been affected in respect of class A and class CC and one-eighth unaffected in respect of all other classes are to be deemed to be unaffected by the disease.

Common Scab (Streptomyces species)

4.0%

)

)

Provided that seed potatoes which have at least two eyes at the rose end that are wholly unaffected and less than one-quarter of whose surface area has been affected are to be deemed to be unaffected by the disease.

GROUP V

External blemishes or tubers other than diseased tubers whose shape is atypical for the variety

2.0%

2.0%

)

Superficial necrosis caused by strains of potato virus Y

0.1%

GROUP VI

Dirt or other extraneous matter

1.0%

—

—

PART IVTest and trial seed potatoes

Column 1

Column 2

Column 3

Specified diseases or pests, damage and defects

Individual tolerances

Collective tolerances

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

—

Wart Disease (Synchytrium endobioticum (Schlib.) Perc.)

Nil

—

Earth or other extraneous matter

2.0 %

—

Dry and wet rot, except if caused by Synchytrium endobioticum, Clavibacter michiganensis (Smith) Davis et al. ssp. Sepedonicus (Spieck. & Kotth.) Davis et al. or Ralstonia solanacearum (Smith) Yabuuchi et al.

1.0 %

)

External blemishes or tubers other than diseased tubers whose shape is atypical for the variety

3.0 %

) 6.0 %

Common scab: tubers affected over more than one-third of their surface

5.0 %

)