Basics
Symptoms
Scouting
Agronomic impact
Risk assessment
Management
Links to state resources

NCSRP

Founded by the North Central Soybean Research Program and funded by the Soybean Checkoff – this website provides information on soybean pests and diseases from checkoff-funded research, and from the university research and Extension programs of all 12 NCSRP partner states.

 

Your Soybean Checkoff.
Delivering Results.

Illinois

Indiana

Iowa

Kansas

Michigan

Minnesota

Missouri

Nebraska

North Dakota

Ohio

South Dakota

Wisconsin

Cercospora Leaf Blight - Risk Assessment

Cercospora leaf blight field view
Soybean varieties differ in their susceptibility to Cercospora. Check with your seed supplier.
Photo credit: S.S. Navi, Iowa State University

Conditions that favor development of Cercospora are:

  • Warm temperature, frequent rain, and high humidity
  • Planting infected seeds
  • Planting a susceptible soybean variety
  • Field history of Cercospora
  • High plant density
  • Poor air circulation
  • Poor soil drainage