Skip to main content


Many South Dakotans are dealing with flood issues following recent blizzards and record-breaking rain.

View Resources


All Soybean Content

A John Deere Max Emerge XP corn planter behind a Case IH Magnum 335 with AFS precision farming system.

Why Precision Agriculture?

When precision agriculture comes into a conversation a few questions arise. Three of those questions might be: What is precision agriculture? How does precision agriculture make our farm more profitable? What do I do with all this data?

a newly planted soybean field with white fertilizer sprinkled throughout

Application of Nitrogen Fertilizer in Soybeans

SDSU Extension conducted a study during the 2016 growing season at five Eastern South Dakota sites to evaluate the effects of added N fertilizer (as urea) on soybean yields.

small group of cattle grazing on cover crops

Cover Crops & Livestock Integration: A Profit Opportunity for S.D. Farms

Cover crops have been gaining a reemerging acceptance over the last decade, with very few producers disagreeing about the potential soil health benefits of adding cover crops to their farming operation.

green leafy plants

Soybean Vein Necrosis Virus Detected in South Dakota Soybeans

A new soybean virus called Soybean vein necrosis virus (SVNV) was detected in South Dakota soybean fields in Davison and Union counties. Symptomatic plants were sporadic and found along the field borders. Infected plants showed mild to moderate severity.

small white larvae on a green stem

Small red maggots under your soybean plants’ epidermis? We have answers.

In 2015, we received plant samples of soybean that had small red maggots under the epidermis. Now, in 2017, we are starting to receive reports of these same insects being found under the epidermis of soybean in different parts of South Dakota.

A soybean field with a large brown area due to a lightning strike.

Seeing Dead Soybean Plants in a Circular Pattern? Could Be Due to Lightning

While quite uncommon for lightning to damage row crops, it does happen. Thunderstorms can have lightning that can burn soybeans plants leading to their death.

A group of people in a soybean field with white insect nets

Attendees Learned About Insects at the IPM Field School

December 18, 2018

The 2017 IPM Field School was at the Southeast Research Farm during the third week of July. One of the sessions that attendees participated in was “Insect Management: Techniques for Scouting and Identification of Insect Pests.”

Corn, Soybean

green soybeans with white mold

White Mold Development: Is your soybean field at risk?

According to USDA-NASS crop progress report for the week of July 17, 49% of the soybeans in South Dakota are at flowering. The flowering growth stage is also the time when white mold infection is initiated. The white mold pathogen infects the soybeans through the flowers that are senescing after pollination.

a sprawling soybean field with a farm in the background

Soybeans & Sunflowers: Alternative Cattle Forages

Alternative forages like soybean silage or hay, and sunflower silage, can help stretch conventional forage supplies and help avoid overgrazing pasture.

A small, green, winged insect sitting on a soybean leaf.

First Soybean Aphid Populations Detected in South Dakota

While scouting fields this week, we observed winged (alate) soybean aphids in Southeast South Dakota.