Blackleg ( Dickeya Samson et al . spp. [1DICKG]; Pectobacterium Waldee emend. Hauben et al . spp. [1PECBG]),0 %,
 Candidatus Liberibacter solanacearum Liefting et al . [LIBEPS],0 %,
 Candidatus Phytoplasma solani Quaglino et al . [PHYPSO],0 %,
  Mosaic symptoms caused by viruses    and    symptoms caused by Potato leaf roll virus [PLRV00]  ,0,1 %,
Potato spindle tuber viroid [PSTVD0],0 %,

Symptoms of virus infection,0,5 %,

 Candidatus Liberibacter solanacearum Liefting et al . [LIBEPS],0 %,
 Ditylenchus destructor Thorne [DITYDE],0 %,
Black scurf affecting tubers over more than 10 % of their surface as caused by Thanatephorus cucumeris (A.B. Frank) Donk [RHIZSO],1,0 %,
Powdery scab affecting tubers over more than 10 % of their surface as caused by Spongospora subterranea (Wallr.) Lagerh. [SPONSU],1,0 %,