Late blight

    Fungal diseases

    Black dot

    Black dot

    Colletotrichum coccodes

    Early blight

    Early blight

    Alternari solani

    Fusarium dry rot and wilt

    Fusarium dry rot and wilt

    Fusarium sp. and F. oxysporum

    Gangrene

    Gangrene

    Phoma foveata

    Late blight

    Late blight

    Phytophthora infestans

    • CGN: 1993 observations on 1270 acc. as download and combined for online search
    • SolRgene database (temporarily unavailable at www.plantbreeding.wur.nl/SolRgenes/index.php) incl. observations from CBSG & Parapluplan projects. Many genotypes in-vitro available
    • GRIN: data on 851 acc (some overlapping): relevant webpage
    • GLKS (IPK): data on 1075 acc. and VIR: data on 356 acc. not yet on-line, but downloadable in a combined data set of the European potato genebanks
    • CPC collection: 371 accessions with late blight resistance data (select late blight ).
    • Potato Late Blight Network For Europe EUCABLIGHT , data on varieties and screening protocols
    • the British Potato Varieties Database, select Resistance to ...
    • varieties in the Netherlands NIVAP
    • French catalogue, criteria, select: Résistance au mildiou du feuillage
    • the European Cultivar Potato Database 3850 clones/cultivars with resistance data
    • Neiker: >100 observations in downloadable data set (varieties)
    • 53 clones at NordGen
    • CIP advanced clones with resistance data . See also the catalogue of CIP potato varieties .

    Pathotype occurrence data

    Powdery scab

    Powdery scab

    Spongospora subterranea f. sp. subterranea (belongs to the Protozoa)

    Other

    FABI 2020: Trapping crops like oat and soybean could be used in rotation with potato to reduce inoculum levels in the soil.

    Silver scurf

    Silver scurf

    Helminthosporium solani

    Skin spot

    Skin spot

    Polyscytalum pustulans

    Stem canker and black scurf

    Stem canker and black scurf

    Rhizoctonia solani

    • CGN: observations on 12 acc. as  download .
    • GRIN: data on 210 acc (incl. some doubles):  relevant webpage
    • the  European Cultivated Potato Database, select Resistance to stem canker
    • VIR: data on 473 acc. not yet on-line, but downloadable in a combined data set of the  European potato genebanks.
    • the European Cultivar Potato Database resistance data on 600 clones/cultivars.
    • Neiker: >30 observations in  downloadable data set (varieties).
    • Decription of the disease by  bioKennis (in Dutch)
    Tuber blight

    Tuber blight

    Phytophthora infestans

    Verticillium wilt

    Verticillium wilt

    • GRIN: resistance data on  1500 acc. (some overlap), furthermore species specific results of V. dahliae (14 acc.) and V. albo-atrum (20 acc.):  relevant webpage (scroll down to Disease descriptors).
    Wart

    Wart

    Synchytrium endobioticum

    • varieties in Germany  JKI , search for "Kartoffelsorten" (info on resistance against R1, 2, 6, 8, 10, 18)
    • CGN: 582 observations (pathotypes R1, R2, R6, R8) on 395 acc. as  download and combined for  online search . Original observations as PDF:  1994-1980 (R2, R6, and R8, some R1),  1979-1976 (R1 only). Results are preliminary: the PDF's show that mostly only a relatively few tubers have been tested. Furthermore the small tuber size may produce less reliable results ( Langerfeld & Hoekstra 1992 ). Publication on the history of potato wart in Germany incl. a table with differentials ( Stachewicz & Langerfeld 1998 ).
    • GRIN: 195 acc on R1:  relevant webpage
    • GLKS (IPK): R2 data on 1151 acc. and VIR: R1 (probably) data on 98 acc. not yet on-line, but downloadable in a combined data set of the  European potato genebanks.
    • CPC collection: 39 accessions with R1 (probably) resistance data (select  Wart ).
    • the  European Cultivar Potato Database over 2200 clones/cultivars with field resistance data, as well as susceptibility to individual wart races.
    • varieties in the Netherlands  NIVAP (R1 only)
    • French catalogue , criteria, select: Résistance à la galle verruqueuse
    • 54 clones at  NordGen
    White mold

    White mold

    Sclerotinia stem rot.

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