Connie supports the citizens of South Dakota in her role as the SDSU Extension Plant Diagnostician at the South Dakota State University campus in Brookings.
Connie Tande
SDSU Extension Plant Diagnostician
Also by Connie Tande
SDSU Extension programs help producers maintain healthy crops
August 26, 2025
Madalyn Shires puts on a lot of miles in the summer. As an assistant professor and SDSU Extension Plant Pathology Specialist, Shires traverses the state visiting research plots and educating crop producers on that research.
Corn Diseases in South Dakota Update
Several South Dakota counties have confirmed positive cases of Southern Rust and Tar Spot this growing season. See our latest recommendations for dealing with these diseases before they become a problem.
Corn Stunt in South Dakota
In late September, a sample received from Deuel County was confirmed positive for corn stunt, a disease spread through corn leafhopper feeding. This diagnosis is the furthest north corn stunt has ever been confirmed and reported in the United States.