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In-season field crop disease updates for Indiana

Tar Spot and Southern Corn Rust Update in Indiana

By Darcy Telenko | Aug 13, 2021

Both tar spot and southern corn rust continue to be documented across Indiana (Figures 1 and 2). I suggest if you have not gotten out and looked for these diseases now is the time. Even if your corn is approaching black layer it will be important to document tar spot in your fields for the…

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Update on Disease Risk in Soybean and Corn in Indiana

By Darcy Telenko | Jul 16, 2021

Recent rains and increased humidity across Indiana have increased the risk for foliar diseases to develop in both corn and soybean. Much of the corn throughout the state has begun to tassel and soybeans are flowering. We are starting to see common diseases in the lower canopy of corn, as we were out scouting this…

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Time to Scout for Diseases in Field Crops: What to Look for in Corn

By Darcy Telenko | Jul 6, 2021

Yes, we have found active tar spot in Indiana. Early planted corn in Indiana is reaching mid- to late-vegetative stages and some tasseling in the south. Therefore, it is time to start monitoring for diseases to make an informed decision if a fungicide is necessary. As a reminder for disease to occur, three things need…

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The 2020 Applied Research in Field Crop Pathology is Now Available

By Darcy Telenko | Jan 11, 2021

A summary of the 2020 applied field crop pathology trials conducted by the Purdue Field Crop Pathology program in the Department of Botany and Plant Pathology is now available. It can found online on our Extension Field Crop Pathology website here. This annual publication is designed as a guide to inform farmers, agricultural industry representatives,…

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SCN Samples Indiana

By Darcy Telenko | Oct 29, 2020

Thank you all for the over whelming response to the Soybean Cyst Nematode Survey!  Effective immediately future samples need to be shipped to SCN Diagnostics at the University of Missouri.  Their address and contact information is on the attached form. The current samples received have maxed out the capability of our new Nematologist who is…

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Welcome to our new Nematologist, Dr. Lei Zhang

By Darcy Telenko | Sep 3, 2020
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Field Crop Update for Indiana – August 13, 2020

By Darcy Telenko | Aug 13, 2020

Soybeans We are starting to see a few diseases in soybean across Indiana. Foliar symptoms of sudden death syndrome and brown stem rot are also making an appearance, make sure you cut open the stem to verify. As a reminder, brown stem rot will cause a discoloration of the pith, while sudden death syndrome causes…

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Foliar Disease Update in Indiana Corn and Soybean

By Darcy Telenko | Aug 3, 2020

It is important to continue to scout for diseases in both corn and soybeans. Recent rain events have increased favorable environmental conditions for the development of foliar diseases in both crops. In our scouting rounds this week we are starting to see gray leaf spot, northern corn leaf blight, and Physoderma in corn (Figure 1),…

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Update on Indiana Foliar Disease Risk in Soybean and Corn

By Darcy Telenko | Jul 17, 2020

Recent rains and increased humidity across Indiana have increased the risk for foliar diseases to develop in both corn and soybean. Much of the corn has begun to tassel and soybeans have begun to flower. We are starting to see common diseases in the lower canopy of corn, as we were out scouting this past…

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Time to Scout Field Crops: What to Look for in Corn

By Darcy Telenko | Jul 9, 2020

Yes, we have found tar spot in Indiana for 2020 Darcy Telenko and John Bonkowski Early planted corn in Indiana is reaching late vegetative stages and tasseling in the south. Therefore, it is time to start monitoring for diseases to make an informed decision if a fungicide is necessary. As a reminder for disease to…

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