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A yellowing soybean plant with brown spots on the leaves.

Soybean Diseases Update

A few soybean fields scouted had between low to moderate levels of brown spot (also known as Septoria leaf spot). Soybean planted into soybean stubble had elevated levels of brown spot.

Late-Season Soybean Diseases: Know what’s killing your soybeans

Late-season soybean diseases can sometimes be mistaken for natural senescence. A closer look at the stems and roots of dying plants and the pattern displayed by dead plants in the field may reveal root or stem rots going on. In order to devise effective management practices for future soybean seasons, it is important to determine the cause of early soybean plants death.

Color-coded map of the United States showing precipitation outlook for April to June 2022.

Drought Concerns Continue With 2022 Spring Climate Outlook

March 23, 2022

The climate outlook for spring 2022 has increased concern for drought in South Dakota, with the March 17 U.S. Drought Monitor showing two-thirds of the state in either moderate or severe drought.

A soybean field with notisable yellowing and browning on a section of plants.

Replanting Considerations

Every season weather events such as hail or flooding can damage or destroy previously planted crops in all or in portions of fields. In May or even early June, many producers will replant these areas. As the end of June approaches, the window for replanting narrows and producers may want to do a more careful evaluation of whether or not to replant.

Map of South Dakota with dot-plots indicating 24-hour soil temperatures at a 4-inch depth for various locations throughout South Dakota. Data from Mesonet.sdstate.edu

Delayed Planting Due to Soil Temperatures?

Although it can be tempting to get a head start with row crops, it's important to be mindful of soil temperatures and the risks associated with planting early.

Soybean Pests: Bean Leaf Beetles and Bean Pod Mottle Virus

With the number of bean leaf beetle observations in soybean fields during 2016, the need for monitoring soybean for Bean pod mottle virus (BPMV) development increases. Bean pod mottle virus was first identified in South Dakota in 1998, and is recognized as a very economically important disease in soybean due to the potential for it to cause devastating losses to soybean yields.

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.

Color-coded map of the United States showing precipitation outlook for May 2022. The majority of South Dakota is predicted to have above-average precipitation.

May 2022 Drought and Climate Outlook

The May climate outlook favors cooler and wetter than average conditions. It is possible producers could experience some short-term drought relief, with a return to drought or re-intensifying in the mid-summer season.

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.

Image showing locations of the five South Dakota reservoirs managed by the US BOR

Spring Storms Help Bureau of Reclamation Reservoirs in Northwestern South Dakota

While the moisture was needed, the systems were severe with blizzard conditions occurring from multi-day, strong-gusting winds across the area.