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Group of farmers and ranchers attending a drought meeting.

SDSU Extension to Host Drought Management Meetings

April 29, 2022

SDSU Extension will host drought management meetings across South Dakota May 10-12.

Benefits of Wheat in a Corn Soybean Rotation

Crop rotation has long been recognized as a standard component of integrated pest management in cropping systems.

Winter wheat emerging from a planted field.

Double-Crop after Wheat?

Two crops in one year may sound tempting, and for some crop species is possible, but before doing so, producers should consider possible crops and compare the potential benefits with the drawbacks.

Spring wheat field with wheat emerging in early spring.

Latest Recommended Planting Dates for Spring Wheat in South Dakota

A major question that producers have been asking is, “How late can wheat be planted in South Dakota without a significant reduction in yield potential?” See our latest recommendations for those considering late planting this May.

SDSU Research Shows Effects Of Volunteer Corn In Corn And Soybeans

In 2007, researchers at South Dakota State University indicated that volunteer corn is much less competitive in corn than soybean. The South Dakota study (Alms et al. 2007) evaluated the full season effect of a range of volunteer corn densities (800-14,000 plants/acre) on both corn and soybean and reported yield losses that ranged from 0% to 13% in corn and 0% to 54% in soybean.

A field of soybeans with leaves flipping upward.

Drought Stress Symptoms in Soybean

Soybeans in South Dakota are in their moisture-critical reproductive stage. Drought stress during this growth stage can significantly impact yield, so here are some things to look for.

Green, teardrop shaped insects on a green leaf that has dark spots. Courtesy: Alton N. Spark Jr., University of Georgia, Bugwood.org.

Low-Level Aphid Populations Present in Wheat

Reports of aphid populations in wheat fields have been slowly increasing in the past week. Most of these populations are well below the economic threshold, but there is a potential for them to increase.

Yellow and brown streaks on a winter wheat leaf indicative of bacterial leaf streak symptoms.

Bacterial Leaf Streak Developing at Low Level in Winter Wheat

A few winter wheat fields were found with bacterial leaf streak starting to develop at low levels. Bacterial leaf streak is usually observed starting from flag leaf growth stage. It can be severe on the upper leaves when there is prolonged leaf wetness resulting from frequent rains.

Left: Brown moth with light markings present on a green leaf. Right: Brown moth with light markings present.

Army Cutworm Moths Among the Recently Reported Western Bean Cutworm Moths

Last week, we published an article about the presence of western bean cutworm moths being very abundant throughout Central and Western South Dakota. However, when talking with an entomologist from a neighboring state, they suggested the moths could also be army cutworm moths.