Indiana CCA Conference 2018 Presentation



Pest Management
Wed, Dec 19, 2018
9:00am to 9:50am


Pest Management
Wed, Dec 19, 2018
2:00pm to 2:50pm


During the 2018 season a number of corn diseases were reported in Indiana. Do you know what you had in your fields? Did they impact yield? The usual suspects, grey leaf spot, northern corn leaf blight and stalk rots, were found throughout the state. Some minor diseases also occurred in areas –Physoderma brown spot and southern rust. In addition, there was an outbreak of the relatively new disease, Corn Tar Spot. The tar spot pathogen Phyllachora maydis was first identified in the United States in 2015 in Illinois and Indiana. An update of what is known so far about the biology and/or epidemiology of tar spot will be given.  


A review of corn disease identification, detection and monitoring will be presented. Then, disease specific management options such as host resistance, cultural practices and integration of fungicides will be discussed. Disease management in corn requires the integration of multiple strategies. The number of tools available for plant disease management continues to expand, but it is imperative we understand the Best Management Practices (BMPs) for each tool (new or old) in order to implement and incorporate them into current production practices to achieve effective and economical protection of yield.


Darcy Telenko

Assistant Professor, Field Crops Pathologist
Purdue University