Group 1 |
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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 |
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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 |
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Skin spot (Polyscytalum pustulans (Owen & Wakefield) M B Ellis | Nil |
Group IV |
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Black Scurf (Rhizoctonia solani Kuhn) | Nil |
Common Scab (Streptomyces species) | Nil |
Group V |
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Powdery scab (Spongospora subterranea (Wallr) Legerh) | Nil |
Group VI |
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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 |
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Dirt or other extraneous matter | 1.0% |