Life Cycle
The telia survive in a semi-dormant state in crop residues both in the field and on seed. The teliospores they produce are blown by the wind and come to rest on volunteer plants and seedlings, infecting them. Aecia are produced and liberate aeciospores which spread the infection within the crop and to other nearby bean crops. Uridinia are produced on the stems and leaves and liberate urdiniospores which spread the rust throughout the crop canopy. Late in the season, telia form on stems and leaves and remain in crop debris after harvest ready to infect next season's crop.
Read more about this topic: Uromyces Viciae-fabae Var. Viciae-fabae
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