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
Seedcorn Maggot Degree Day Activity Estimates: May 27, 2021
In South Dakota, we have accumulated enough degree days across the state that the peak emergence of the overwintering seedcorn maggot population has passed. In most of South Dakota, we are at peak emergence of the second generation or slightly past it.
Seedcorn Maggot Degree Day Activity Estimates: May 20, 2021
Seedcorn maggots can be an early-season pest of corn and soybean in South Dakota, typically affecting crops that are emerging or have recently emerged. Seedcorn maggots can cause direct loss by destroying planted seeds.
A Ban or New Rules for Chlorpyifos May Be Coming Soon
Recently, a federal appeals court gave the U.S. Environmental Protection Agency a 60-day deadline to either ban insecticides containing chlorpyrifos or set new guidelines for its use.
Check Your Bins This Spring
As it warms up this spring, don’t forget to check the bins. Grain bins work as solar heat collectors, and the grain inside of them may be much warmer than expected.
Dry Conditions Could Lead to Early Twospotted Spider Mite Infestations
Although it isn’t an insect, the twospotted spider mite is an occasional pest of crops in South Dakota, and its populations can rapidly increase during dry conditions.
2021 South Dakota Overwintering Bean Leaf Beetle Predicted Mortality
Bean leaf beetle emergence is approaching, and it’s important to start thinking about this pest. Once soybean begin emerging, overwintering adult beetle populations will move into soybean fields and begin feeding on seedlings.
Dry Conditions Are Ideal for Spider Mite Activity
Several counties in South Dakota are experiencing dryer than normal conditions, therefore, it is important to monitor crops for spider mites, as they thrive during periods of dry weather.
2021 South Dakota Pest Management Guides Now Available
February 04, 2021
SDSU Extension has released the 2021 South Dakota Pest Management Guides.
SDSU Extension’s Soybean Week Dives into Pest Management, Soil Health and 2021 Outlook
January 07, 2021
Want to know more about weed control, research, planting dates, and fungicide? Join us on January 19 - 22.
Use the SD Spray Tool for Inversion Detection and Weather for Pesticide Application
The SD Mesonet Spray Tool provides real-time weather data for pesticide applicators. This dedicated website for pesticide applicators uses the SD Mesonet weather data, which is updated every five minutes.