Wade Webster

Check out the field research being done by the NDSU Extension Soybean Pathology lab in 2025. ndsu.edu/agriculture/ex…

Check out some of the exciting soybean pathology research that we have been working on over the past few years across the North Central region!

soybeanresearchinfo.com/research-highl…

While not widespread, some fields that have been sitting at full maturity with recent rains are starting to show seed decay. Especially important for any soybeans being harvested for seed production as germination quality can be an issue.

Despite the drought across much of the state, northern North Dakota still has quite high disease pressure this season. Range of diseases that are present in fields, and some fields at quite high levels.

Photo 1: Stem canker across the entire region
Photo 2: White mold pocketed but high in certain fields
Photo 3: Phytophthora stem rot present in areas that have had consistent moisture. Warm soil temps helped drive disease
Photo 4: SCN cysts across the eastern side of the state.

Scouting across the state this week. Even though symptoms developing on leaves look similar to SDS, it’s important to split the stems and look at the pith. Brown pith tissue, especially around the nodes, means this is actually brown stem rot.