Date of this Version
The symptoms, sources, spread and management of rust in dry edible beans is discussed in this NebGuide.
Rust is an important disease that affects dry beans in eastern Colorado, western Nebraska and adjacent regions. The disease is caused by the fungus Uromyces appendiculatus which has caused periodic epidemics in this region since the 1950s. Recent yield losses from the disease have exceeded 50 percent in some areas.