Final diagnosis


Sclerotinia spp. (Stalk break and White mould)

Stem infected at the collar by <i><b>Sclerotinia</i> spp.</b> and lying on the soil (white mould disease).
Sclerotia visible inside an infected stem of potato.<i><b>Sclerotinia</i>spp.</b> (white mould disease)
Early maturing plants related to a soil severely infected by <b><i>Sclerotinia</i></b> spp. (white mould disease).
Irregular and diffuse light to dark greyish surface areas with or without the formation of fructifications (microsclerotia). <i>Colletotrichum coccodes</i> (Black dot)
Sclerotia visible inside an infected stem.<i><b>Sclerotinia</i>spp.</b> (white mould disease)
Infected, whitish base of the stem by <i><b>Sclerotinia</i> spp.</b> (white mould disease).
Sclerotia visible inside an infected stem.<i><b>Sclerotinia</i>spp.</b> (white mould disease)
Tuber rot at the stolon-end with presence of black sclerotia. <i><b>Sclerotinia</i> spp.</b> (white mould disease)