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Southern Rust

Metallic MythBusters-style title plate with rusted edges over a close-up photo of corn leaves showing orange southern rust pustules.

October 23, 2025

Mythbusters: Southern Rust Edition

By Tamra Jackson-Ziems - Extension Plant Pathologist, Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic

Shriveled yellow corn kernel with a pinched base held between two fingers, showing poor fill and stress-related kernel development issues.

December 3, 2025

Disappointing Corn Yields in 2025

By Tom Hoegemeyer - Former Adjunct Professor of Practice, Roger Elmore - Emeritus Extension Cropping Systems Agronomist, Eric Hunt - Agricultural Meteorology and Climate Resilience Extension Educator, Bob Nielsen - Professor Emeritus, Purdue University , Jenny Brhel - Extension Educator

Black Angus cattle graze corn residue in a harvested field under a partly cloudy sky near a distant grain elevator.

October 28, 2025

Pasture and Forage Minute: Nutrition, Disease Concerns for Crop Residue Grazing

By Ben Beckman - Extension Educator, Todd Whitney - Extension Educator

Pile of chopped corn silage under a blue sky with an inset photo showing southern rust pustules on a corn leaf, highlighting disease risk at harvest.

September 15, 2025

Pasture and Forage Minute: Southern Rust Impacts on Corn Silage, Testing Hay Quality and Fall Armyworm Management

By Ben Beckman - Extension Educator, Jerry Volesky - Nebraska Extension Range and Forage Specialist, Samantha Daniel - Extension Educator

Hero graphic showing three photos of corn leaves with southern rust, tar spot, and Goss’s wilt symptoms over a red cornfield background.

August 22, 2025

Corn Disease Pressure Builds in Nebraska

By Tamra Jackson-Ziems - Extension Plant Pathologist

Southern rust on a corn leaf

July 19, 2017

Southern Rust Confirmed in Corn in 8 Eastern Nebraska Counties

By Tamra Jackson-Ziems - Extension Plant Pathologist, Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic, Jenny Brhel - Extension Educator

Map of counties where southern rust had been confirmed as of Aug. 3, 2017

August 3, 2017

Nebraska Counties where Southern Rust Has Been Confirmed in Corn

By Tamra Jackson-Ziems - Extension Plant Pathologist, Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic

Southern rust pustules on a corn leaf

July 27, 2017

Corn Disease Update: Southern Rust Increasing; Diplodia New to Nebraska

By Tamra Jackson-Ziems - Extension Plant Pathologist, Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic, Jenny Brhel - Extension Educator, Amy Timmerman - Extension Educator

Counties with confirmed southern rust

August 4, 2017

Continued Scouting Urged for Southern Rust Now in 26 Counties

By Tamra Jackson-Ziems - Extension Plant Pathologist, Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic

Gray leaf spot (left) and southern rust (right) in corn

August 18, 2017

Corn Disease Update: Are we out of the woods yet?

By Tamra Jackson-Ziems - Extension Plant Pathologist

Southern rust on a corn leaf

July 20, 2018

Southern Rust of Corn Confirmed in Nebraska

By Tamra Jackson-Ziems - Extension Plant Pathologist, Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic

Map showing the 70 counties where bacterial leaf streak has how been confirmred.

August 10, 2018

Crop Disease Update

By Tamra Jackson-Ziems - Extension Plant Pathologist, Terra Hartman - Graduate Research Assistant, Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic