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Soybean Production in Mississippi

Symptomology of Asian Soybean Rust

Photos of rust

Symptoms of soybean rust.

 

Photos of rust

Symptoms of soybean rust on the lower side of leaf.

 

Photos of rust

Symptoms of soybean rust on the upper leaf surface.

 

Photos of rust

Symptoms of soybean rust as seen when held up to light.

 

Photos of rust

Tan symptoms of soybean rust. Raised areas are pustules.

 

Photos of rust

Photos of rust

Art by Joel Floyd. APHIS.

 

Photos of rust

Under magnification, using a compound microscope, more details can be observed. The top photo is a cross section of urendia bearing the urediniospores; bottom left shows the urediniospores; and the spores observed when in a micrograph using a scanning electron microscope (bottom right).