Bean Binoculars Incident

Soybean Stem Canker

Issue: Pathogen

Scouted in Audubon County, IA on September 17th, 2024

Soybean Stem Canker

Details:

Soybean Stem Canker was found in R7 (beginning maturity) soybeans. The disease usually occurs in patches across a field and the first symptom is typically dead plants that have dried leaves later in the season. 

Conclusion:

The best way to manage stem canker is to plant resistant soybean varieties. Rotating crops and incorporating infested crop residue into the soil will reduce the amount of inoculum available to infect the next soybean crop. 

Resources:

Soybean Stem Canker | CPN

Photo of a soybean stem with dark brown lesions due to stem canker. Photo of a soybean stem that has died and has brown lesions due to soybean stem canker.