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Madalyn Shires

Assistant Professor & SDSU Extension Plant Pathology Specialist

605-651-5631

Berg Agricultural Hall 261
Agronomy, Horticulture & Plant Science-2207A
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

Green leafhopper with clear wings.

Aster Leafhoppers Detected in South Dakota Wheat

Aster leafhoppers are present in wheat again this spring. For the last few years, aster leafhoppers have been a common occurrence in South Dakota wheat.

Wheat plants in a field showing viral symptomology of Wheat Streak Mosaic Virus.

Wheat Streak Mosaic Virus Confirmed in 2026

At the end of April, a winter wheat sample was submitted to the Plant Diagnostic Clinic displaying typical viral symptoms of chlorosis and streaking. Upon testing, this sample was determined to be positive for Wheat Streak Mosaic Virus.

grass leaves with yellow and brown streaking on the tops and edges

Grass Diseases of South Dakota Identification Guide

Common grass disease identification guide.