Bean rust
Uromyces appendiculatus
This description was machine-translated.
How to spot it
Bean rust is a fungal disease that occurs above all in high summer on bush beans, pole beans and runner beans. Characteristic are rust brown, powdery spore pustules on the underside of the leaf, surrounded by a yellow halo. Badly infested leaves turn yellow and drop early, which weakens the plant and reduces pod set.
Prevention
Use wide planting distances for airy stands that dry off quickly after dew and rain, and water in the morning at the root rather than over the foliage. Remove the first infested leaves at once and clear away all plant remains after the harvest. Do not compost them. A break of several years before beans return to the spot and less rust prone varieties lower the infestation pressure.
Affected plants
These plants in our database are especially susceptible.
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