Soybean Insects
Recommended Content

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.

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 Insects Content

Crops
During the growing season, SDSU Extension provides weekly production recommendations.

Don’t Let Grasshoppers Decrease Your Yields
Throughout the 2023 growing season, grasshopper populations have been causing problems. Those problems aren’t over yet, and we won’t be able to stop monitoring grasshopper activity until the crops are harvested.

Redheaded Flea Beetles in Soybean
Redheaded flea beetles have been observed in soybean fields, causing minor defoliation injury. The defoliation hasn’t reached levels of concern, but overall it should be monitored to ensure that thresholds aren’t exceeded.

Bean Leaf Beetles Showing Up in Soybean
We have been observing an increasing number of bean leaf beetles active in soybean during the last week. See our latest observations and management recommendations.

Redheaded Flea Beetles Are Active in South Dakota
Redheaded flea beetles are now active in soybean. Although they haven’t caused significant defoliation yet, their activity should be monitored, as other defoliating insects are also present in soybean.

Soybean Gall Midge Larvae Detected in South Dakota Soybean
Soybean gall midge larvae have been detected in southeastern South Dakota. Although the infestations probably won’t result in plant death in many fields in 2022, the infestations could be a source for soybean gall midge adults in 2023.

Grasshopper Activity Is Ramping Up
We have already observed increased grasshopper activity in many areas of the state and, depending on the 2022 season, they may become problematic in crops.

Soybean Gall Midge Adults Detected in South Dakota
Soybean gall midge emergence was first detected in South Dakota two weeks ago, during the week of June 13 -17, 2022. Emergence continues to be slow, with the only observations in southeast South Dakota.

Dingy Cutworms Observed in South Dakota Crops
Dingy cutworms have been reported in South Dakota crops, and their activity is likely to continue for at least another couple of weeks.

It’s a Bee! It’s a Wasp! No, It’s a Hover Fly!
Many types of insects are responsible for some degree of pollination in landscapes. In this article, we will focus on the syrphid fly as both an important pollinator and a beneficial insect predator.