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high-quality headshot of James Doyle

SDSU Extension welcomes new Diversified Ag Field Specialist to Winner office

September 29, 2023

South Dakota State University Extension is pleased to welcome Jimmy Doyle as a new Diversified Agriculture Field Specialist.

People eat ice cream under a large tent

SDSU Extension experts to attend 2025 Dakotafest

August 06, 2025

South Dakota State University Extension experts will attend the 2025 Dakotafest trade show in Mitchell, providing educational resources and hands-on activities for a variety of topics.

Eight green beetles in a row in the top half of the image and a row of seven yellow beetles with varying black stripes in the bottom half of the image.

Corn Rootworm Egg Hatch Estimates

Corn rootworms overwinter in the soil as eggs and hatch in the spring when enough soil degree days have been accumulated. Based on soil degree day accumulations, most of South Dakota has reached 50% corn rootworm egg hatch.

Young corn emerging in a no-till field.

Estimating Corn Emergence With Growing Degree Days: Data from May 7, 2021

With corn planting well underway in South Dakota, the next step is monitoring its emergence. One of the factors that can speed up or delay corn emergence is air temperature.