Common rust can often be confused with southern rust, especially when they are not occurring side-by-side on the same leaf. They both produce rusty looking pustules on the leaves, however, southern rust is extremely aggressive and most destructive under favorable high temperature-high humidity conditions. In the span of a week, it can take over a field.
Listen in as Tom Stebly, Division Manager/Agronomist out of Enid, OK, talks about the differences between common rust and southern rust and how to combat high yield loss with fungicide applications.
Pustules are orange to light brown, small, and densely packed on the upper leaf surface.
If you need help to make these critical decisions, and evaluate the disease pressure in your fields,
don’t hesitate to call your local Crop Quest Agronomist or call 620-225-2233.