Featured Research

Red Crown Rot of Soybean: Time to Scout, Recognize Symptoms, and Confirm the Diagnosis

August 6, 2026

Red crown rot symptoms are continuing to progress across Indiana, and additional affected fields are being identified as the season advances. Most new reports have

Foliar Disease Update for Indiana – Tar Spot and Southern Corn Rust

August 3, 2026

Foliar diseases are becoming increasingly evident in corn fields across Indiana, with gray leaf spot emerging as the most prevalent disease thus far this season.

First Tar Spot Detection Confirmed in Indiana for 2026: Tips, Tools, and Management Strategies to Stay Ahead of this Disease in Corn

June 9, 2026

Questions about tar spot management were already beginning to surface as corn planting nears completion across Indiana. With today’s confirmation of the first positive tar

Field Crop Disease Monitoring Resources for Indiana in 2026

April 30, 2026

I would like to remind everyone on the resources available for monitoring field crop diseases here in Indiana as planting progresses. The Purdue Field Crop

Tar spot: What to Look for in Corn and Making an Informed Decision on Fungicide Application

June 12, 2025

Tar spot confirmed in our research plots in Indiana this week. Corn growth stages are quite variable across Indiana, but a number of areas with

Some Quick Tips and Tools to Prepare for Tar Spot in Corn

June 2, 2025

I am already getting questions on tar spot management as we finish planting corn here in Indiana. Here’s the list of my 10 points after

Field Crop Disease Monitoring Resources for Indiana in 2025

May 6, 2025

There are a number of resources available for monitoring field crop diseases here in Indiana. The Purdue Field Crop Pathology Team will be tracking diseases

Stalk and Ear Rots: Identify Them Now to Help with Harvest Decisions.

September 18, 2024

Darcy Telenko and Dan Quinn It is now time to evaluate fields for any stalk or ear rot symptoms. This will aid in making assessments

Tar Spot and Southern Corn Rust Update in Indiana

August 9, 2024

Southern corn rust has now been confirmed in four counties (Knox, Dubois, Warrick, and Shelby) this week in Indiana (Figure 1). While tar spot continues

Update on Disease Risk in Corn in Indiana

June 28, 2024

We are starting to see common diseases in the lower canopy of corn, as we were out scouting this past week as early planted corn

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