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 | – |
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 | – |
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 including damaged tubers 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% | ) |