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
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.
Leaf Spot Diseases of Rhubarb in South Dakota
In South Dakota, rhubarb is generally hardy, but it can develop several diseases that, when left unmanaged, cause severe damage and decline of plants. Leaf spots caused by the fungi Ascochyta rhei and Ramularia rhei are the most-common diseases we observe.
Secondary Wheat Diseases: Alternaria Species Detected
In wheat observed this summer, the Alternaria species, a group of secondary fungal pathogens were identified in samples collected east of the Missouri river. This pathogen is infectious on its own and can cause Alternaria leaf spot disease.