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Paul O. Johnson giving a presentation near a research plot.

Paul O. Johnson Retires After Dedicated Career in SDSU Extension

June 08, 2022

Paul O. Johnson, SDSU Extension Weed Science Coordinator and Northeast Research Farm Coordinator, is retiring after a dedicated 33-year career supporting the people of South Dakota in his role at SDSU Extension.

Sunish Sehgal combining a field of wheat

Growth Stages of Wheat

Management decisions in wheat production are almost always based on growth stages of the crop. So it is important for wheat producers to be familiar with these growth stages.

Blades of green wheat in a wheat field.

Scouting Wheat Fields

Scouting is the process of monitoring fields and crops during a growing season. It can provide producers with field specific information on pest pressure and crop injury.

baskets on a table with fresh produce at a farmer's market

Farmers Market Resource Manual

This manual is intended to be used by farmers market directors, managers, and organizers to copy portions of the manual that pertain to the needs of their farmers market.

A close up of prickly Russian thistle

Prickly Russian Thistle

Publications that provide introductory and expanded information on the notorious invasive plant, prickly Russian thistle.

Barley yellow dwarf developing in winter wheat.

Barley yellow dwarf is starting to develop in winter wheat. Barley yellow dwarf is caused by the Barley yellow dwarf virus (BYDV). This disease usually becomes more distinct at flag leaf emergence. A typical symptom of Barley yellow dwarf is the purplish-yellow color of infected leaves, especially the flag leaf.

large multi-row sprayer adding chemicals to a field

Early Season Insecticide Applications in Wheat

Many wheat producers in South Dakota have adopted more intensive management practices in the last few years, including an early season application of fungicide and, in some cases, insecticide.

A pile of brown wheat seeds

Fungicide Seed Treatments for Winter Wheat

As producers are preparing to plant winter wheat, one of the decisions to make is whether to use a fungicide seed treatment, and if the answer is yes, which product to use.

A hand examining a wheat plant in a wheat field

Improving Protein Content in Wheat

Wheat producers in South Dakota always strive to grow a premium product. Quality in wheat often depends on test weight and protein content.

Oats growing in a no-till field.

Planting Considerations for Oats in South Dakota

South Dakota is a leading oat producer in the United States. Learn some important oat planting tips, including timing, variety selection, seeding rate and fertilizer management.