Soybean Rust

Soybean rust is a disease that affects soybeans and other legumes. It is caused by two types of fungi, Phakopsora pachyrhizi, commonly known as Asian soybean rust, and Phakopsora meibomiae, commonly known as New World soybean rust. P. meibomiae is the weaker pathogen of the two and generally does not cause widespread problems. The disease has been reported across Asia, Australia, Africa, South America and the United States.

A fungal disease (Phakopsora pachyrhizi) that produces small reddish brown lesions on soybean leaves and can cause severe defoliation and yield loss under warm, humid conditions.