Soybean Insects
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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.
All Soybean Insects Content
South Dakota Overwintering Bean Leaf Beetle Predicted Mortality: 2025-2026
Each year we evaluate the overwintering success of bean leaf beetles in South Dakota. For adult bean leaf beetles that successfully overwintered, emergence will begin in the spring and they will move into soybean fields.
Dingy Cutworms Causing Issues in South Dakota Soybean
Dingy cutworms are commonly observed during the spring but typically do not reach major pest status. However, when the conditions are right, they can cause substantial feeding injury to seedling soybeans, as well as corn, wheat, and sunflower.
South Dakota Grasshopper Prediction for 2026
Almost every year in South Dakota there is a risk that grasshopper populations will reach levels capable of causing issues for producers. Unfortunately, our prediction for the 2026 growing season won’t change the trend.
Crops
During the growing season, SDSU Extension provides weekly production recommendations.
Bean Leaf Beetles in South Dakota
This fact sheet provides an overview of the biology of the Bean Leaf Beetle and management options for South Dakota.
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.
Southeast Research Farm Seminars @ Dakota Farm Show
Join SDSU Extension for a series of educational presentations during the Dakota Farm Show from January 6-7, 2026, at the USD DakotaDome (1101 N Dakota St, Vermillion, SD 57069).
Soybean
SDSU Extension is your partner to increase yields and improve efficiency.
Insects Are Being a Nuisance This Fall
The weather is changing, and many of us are noticing an uptick in the nuisance bites caused by several insects. The continued warm weather is going to increase the activity of all insects, including the ones that are causing us displeasure.
Integrating Precision Ag Tools for Smarter SCN Assessment and Management
Fact sheet on integrating Precision Ag tools for Soybean Cyst Nematode (SCN) assessment and management