However, many new pinto varieties are resistant to current rust races, including Apache, Chase, Elizabeth, Focus, Frontier, Maverick, Remington and Winchester. Seed supplies of some of these varieties may be limited. Other classes of dry beans that are susceptible include small reds and pinks. Most black turtle and kidney beans are resistant to the current rust races. However, California Early and Sacramento light red kidney are susceptible.
Most navy beans are moderately resistant.
Resistance in these classes of beans tends to be race-specific. The number of identified rust races in North Dakota increased from six in 1981 to 12 in 1994. Dr. Jim Venette, NDSU bean pathologist, identified rust races present in the 1996 rust outbreak. In addition to the 12 races previously identified, there apparently were 2-4 new races. Even though some new races were present, some of the most prevalent races were the same ones that we had several years ago.