Skip to main content

Madalyn Shires

Assistant Professor & SDSU Extension Plant Pathology Specialist

605-651-5631

Berg Agricultural Hall 261
Agronomy, Horticulture & Plant Science-Box 2100A
Brookings, SD 57007

Madalyn supports the citizens of South Dakota in her role as an Assistant Professor and SDSU Extension Plant Pathology Specialist located at the South Dakota State University campus in Brookings.

State & Regional Offices

SDSU Campus
Also by Madalyn Shires
Lot of soybeans with noticeable purple seed stain throughout.

Stained or Decaying Soybean Seeds? Fungal Pathogens Could Be to Blame

As soybean harvest began in South Dakota and the Midwest, there were multitudes of reports of soybean seeds that were abnormal. Some soybeans were stained a shade of pink or purple, while others were shriveled or decayed in appearance. Learn about the two diseases responsible for these symptoms.

Rows of wheat grass with visible Wheat streak mosaic virus symptoms throughout.

Weed Control is a Must for Preventing Wheat Streak Mosaic Virus

Wheat streak mosaic virus is one of the most damaging viral diseases of winter wheat in the Great Plains. There are no in-season treatments that cure virus-infected wheat. Controlling volunteer wheat and grassy weeds is an important management step.

Uprooted soybean plant showing Red Crown Rot symptoms on the plant roots.

Be on the Lookout for Red Crown Rot in Soybeans

Were your soybeans turning yellow early or exhibiting symptoms that resembled severe, early Sudden Death Syndrome? If so, you could have experienced issues with a new soybean disease called Red Crown Rot.