Phakopsora pachyrhizi is able to affect up to 31 different plant species that belong to 17 different genera under natural conditions.

[3] The disease forms tan to dark-brown or reddish-brown lesions with one to many prominent, globe-like orifices.

As the disease progresses, lesions start to form on the leaves, stems, pod, and petioles.

Lesions are initially small, turning from gray to tan or brown as they increase in size and the disease gets more severe.

[6][9] Currently, in the United States, infected plants can be found in Florida, Georgia, Louisiana, and Texas.

[2] Uredospores are wind-blown and are produced abundantly on the infected tissue of soybeans or other legume hosts.

[Kawashima et al 2016 1] A gene from Cajanus cajan has shown promise when transferred to soybean.

[Kawashima et al 2016 6] A second form of management that can work is using fungicides, but this is only efficient at early stages of the disease.