Southern rust was confirmed late Wednesday afternoon on crops in Hardin County.

“It was lab confirmed by the UK Plant Disease Diagnostic Lab in Princeton on a corn leaf sample from Hardin County,” said Matt Adams, Hardin County Extension Agent for agriculture and natural 4esources.

The incidence and severity were both low in that particular field in Cecilia, he said. Even so, heat and humidity experienced this week in the county favor Southern Rust development. Adams said farmers can expect infection to increase in the coming days and weeks.

When corn has southern rust, fuzzy, raised structures called pustules form on the leaves and stalk, Adams said. The pustules carry thousands of small orange spores which leave an orange dust on your fingers.

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