The rust is distinguished by the typical rust-like marks on the stem and leaves, causing defoliation and loss of photosynthetic surface along with reduction in yield.

Faba bean rust grows best in July and August as the weather in these months is most fit.

[1] The required environment for infection after spores land on a plant consists of rainfall or dew.

An important factor in development of rust epidemics is the infection of volunteer faba bean plants.

The various stages of Faba bean rust and its different symptoms are as stated: Pustules develop on the leaves early in the season appearing as small creamy yellow spots.

These pustules will leave a rusty deposit if touched and they contain a large number of urediospores that spread the rust.

In the late season, pustules that are a black-brown color are produced and are surrounded by the same pale halo on the stems and leaves.

viciae-fabae, however because the spores of the fungus can travel long distances to infect a new crop prevention can be difficult.