Identifying Southern Rust in Corn to Minimize Yield and Profit Loss – Tips from Kansas State

Corn producers are less than thrilled by the appearance of small, light brown, circular lesions on corn leaves. These marks are known as southern corn rust, a fungal disease that is caused by a pathogen known as Puccinia polysora. Farmers pay special attention to the spread of this epidemic to prevent production loss. Kansas State Extension Service offers tips for recognizing the condition and steps to prevent its spread.

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