Agriculture

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.

Disease Update in Indiana Corn and Soybean

July 16, 2026

Continued scouting of both corn and soybean fields remains critical for making timely and informed disease management decisions. Crop development varies considerably across Indiana, with

Red Crown Rot of Soybean: What to Watch For and What to Do if You Suspect It in Your Field

July 9, 2026

Red crown rot of soybean, caused by Calonectria Ilicicola, continues to be a concern in Indiana. We have identified our first symptoms in 2026 in

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

Wheat Fusarium Head Blight (FHB, Scab) Risk and Scouting for Harvest Decisions

May 19, 2026

Darcy Telenko Wheat development continues across Indiana. In central Indiana, wheat is currently flowering (Feekes 10.5), while wheat in our southern Indiana research plots has

Disease Update in Indiana Corn and Soybean

July 10, 2025

Tar spot map July 10, 2025.
It is important to continue to scout for diseases in both corn and soybeans to make informed management decisions.

Update on Disease Risk in Indiana Corn

June 26, 2025

Most corn fields I have been in this week are pretty clean. A few diseases that I have seen include anthracnose, tar spot, and common

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

Please help with the 2025 Soybean Seedling and Stem Disease Survey

June 6, 2025

The Crop Protection Network (CPN) is a multi-state and international collaboration of Extension specialists and professionals, providing unbiased, research-based crop protection information. Our goal is

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