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SDSU Extension to host corn disease scouting workshop

September 23, 2025

South Dakota State University Extension will host a scouting session for corn diseases confirmed in the state this season.

Growth and Quality of Four Zinnia Cultivars Grown in Eastern South Dakota

The purpose of this study was to assess the production and quality of four zinnia cultivars grown in eastern South Dakota to support local specialty cut flower growers in their operations.

Soybean leaves with several bright green lesions progressing into tears with brown crusting along the edges.

Bacterial Blight Common in Soybean Fields

Several soybean fields scouted the week of July 15, 2019 were found with bacterial blight developing. The frequent rains experienced in most soybean growing counties have led to the development of this disease. Bacterial blight affected leaves are most evident on younger leaves in the upper canopy.

a graphic image of South Dakota with multiple colors

Grain Merchant and Processor Consolidation, Concentration, and Competition

A general trend in the last century has been for greater consolidation among Grain Merchants and Oilseed Millers and Processors. The U.S. Census Bureau tracks the number of firms and/or establishments and value of sales (market size) by industry sector every 5 years as a part of the Economic Census. In addition to the number of firms and sales, the Census Bureau publishes concentration ratios for each sector. One concentration ratio they publish is the amount of sales attributed to the four largest firms in that sector. The percentage of sales of the 4 largest firms is a measure that aids in identifying the type of market structure that exists.

a long, worm-like caterpillar with small black spots and white markings

Achemon Sphinx Moth Caterpillars

Achemon sphinxe caterpillars (Eumorpha achemon) feed on wild grape, Virginia creeper, and related vines.

Several cans of homemade salsa sitting on a table.

Canning Tomato-Vegetable Mixtures

Tomatoes are unique when it comes to home canning recipes. Some tomato and vegetable recipes recommend using a boiling water bath canner, some recipes recommend a pressure canner, and some recipes offer both options.

2,4-D (Enlist One) and Glufosinate (Liberty) Additively Control Common Weeds in South Dakota Soybean Production

Fact sheet on the experiment to determine how 2,4-D and glufosinate, when applied alone or mixed, control common weeds and affect soybean yield.

Producer with tablet observing a field in late autumn.

Critical Period of Weed Control: A good, but not perfect guideline

The critical period of weed control is the period during a crop lifecycle when weeds need to be managed to avoid a significant yield loss.

Salts accumulate on the soil surface of a field with salinity issues.

Soil Salinity, Sodicity, and Alkalinity in South Dakota Soils

Salinity and sodicity are issues that negatively affect crop production and soil health in South Dakota.

Alternaria leaf spot symptoms appearing as brown, haloed cankers throughout the leaves of a cucurbit plant.

Cucurbit Diseases in South Dakota

Cucurbit crops grown in both the field and in high tunnels face disease pressure from many fungal and bacterial diseases. Learn how to identify and manage some of the most common ones.