Best Management Practices for Soybean Production
This is your unbiased, research-based guide to soybean production to help increase yield, reduce input costs and protect your investment.
Soybean Diseases
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South Dakota Pest Management Guides
The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.
All Soybean Diseases Content
Crops
During the growing season, SDSU Extension provides weekly production recommendations.
Soybean
SDSU Extension is your partner to increase yields and improve efficiency.
Know Soybean Cyst Nematode, Numbers Matter!
Have you noticed parts of your soybean field turning yellow earlier than expected? Are some of the plants stunted or showcasing a roller coaster appearance? Soybean cyst nematode may be to blame.
Mid-to-Late Soybean Disease Management
Even though it has been hot and humid this summer, some soybeans around the state have seen ideal conditions for mid-to-late season disease development. Learn some common diseases to scout for.
Are Fungicides Needed on Crops Damaged by Wind, Sand Blasting or Hail?
When extreme weather brings hail and sand blasting to fields, many growers wonder if a fungicide application is needed afterwards to protect wounded plants from bacterial diseases.
Risks of Early Soybean Planting in South Dakota
Early soybean planting offers potential yield benefits, but it also poses some risks. Learn some expert tips and considerations for early soybean planting this growing season.
Charcoal and Fusarium Rots Observed in Early Senescing Soybean Plants
The drought conditions in South Dakota have led to early soybean senescence in some areas. However, some of the early senescing may be due to dry-season diseases, such as charcoal and Fusarium rots.
Be Aware of Fungicide Resistance in Field Crops
A few soybean and corn fields have received or will be receiving a fungicide application this season. We recommend scouting fields treated with fungicides to determine if diseases are controlled as expected or if there are signs of reduced sensitivity.
Bacterial Blight Developing In Some Soybean Fields
Bacterial blight was found developing in a few soybean fields scouted the week of July 19. Leaf tattering is a common symptom of bacterial blight and happens when expanding bacterial blight lesions coalesce and form large brown patches.
Stem Canker Developing in Some Soybean Fields
A few soybean fields are showing some wilting plants due to stem canker. The field entries and head rows are the most-impacted parts of these fields. The current dry conditions are stressing the plants and causing early development of the disease.