Uromyces pisi

Uromyces • Pucciniales • Pucciniomycetes • Basidiomycota • fungi • plant diseases • pests-diseases-weeds

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Uromyces pisi (DC.) Otth. (click on image to enlarge it)
Author(s): G. Viennot-Bourgin
Source: Open Media

Uromyces pisi - aecia on Euphorbia (click on image to enlarge it)
Author(s): Amadej Trnkoczy
Source: Flickr

Uromyces pisi (DC.) G.H. Otth. 1863

This fungus causes rust diseases on leguminous crops like peas or Lathyrus. It is one of several species causing "pea rust". On peas the disease develops during the summer and can result in stunting and some yield losses. The uredinia develop on legumes mainly on the lower leaf surfaces with oval to spherical light brown urediniospores. Telia are darker brown. The alternate hosts are Euphorbia species on which aecia develop.

Synonyms:
Puccinia pisi
Uromyces pisi-sativi