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Green beetles feeding on the tip of a corn ear.

Northern and Western Corn Rootworm in South Dakota

Fact sheet on Northern and Western Corn Rootworm in South Dakota

sunflower field

Best Management Practices for Sunflower Production

This is your unbiased, research-based guide to sunflower production, providing the latest recommendations to help increase yield, reduce input costs and protect your investment.

A middle portion of a corn leaf enlarged to show tan-brownish lesions with dark brown wavy margins.

Bacterial Leaf Streak of Corn: A New Corn Disease in South Dakota

Bacterial leaf streak, caused by Xanthomonas vasicola pv. vasculorum (Xvv), is a recently discovered disease of corn in South Dakota. The disease was first identified in Nebraska in 2016 but now has been found in the majority of the Corn Belt states. Under favorable weather conditions bacterial leaf streak can develop to reach yield reducing levels. Like any other bacterial disease, once symptoms develop there is little that can be done to control it in the field. However, it is important to correctly diagnose this as a bacterial disease because it can be confused with gray leaf spot which is a fungal disease.

Diseases & Disorders teaser

Fungicide Resistance: Risk and Management

What is fungicide resistance?
Fungicide resistance can be defined as when a pathogen population is no longer sensitive or has reduced sensitivity to the fungicide that used to control the same pathogen.

A sprawling sorghum field ready for harvest

Sorghum Trial Results

In 2023, sorghum trials were conducted in 2 locations in South Dakota.

wheat field

Spring Wheat Variety Trial Results

The 2023 spring wheat reports include data from 10 locations with regional summaries.

A sprawling green field of field pea plantings

Field Pea Variety Trial Results

In 2023, field pea trials were planted at different locations in South Dakota.

red barn with a white shed in front of it and trees in the background

SDSU Extension 4-H Youth Development Camp Policies and Procedures

Throughout the manual, various policies indicate that they are in addition to the policies and procedures in place at the camping facilities. As a renter of camping facilities, SDSU Extension and South Dakota 4-H will follow all policies and procedures outlined at the facilities rented and employ any additional policies as needed.

tall trees in the Black Hills

How to Identify an Ash Tree Infested by Emerald Ash Borer

This guide will help you determine whether an ash tree may be infested by the emerald ash borer.

herd of beef cattle grazing in a pasture

Pre-weaning Pneumonia in South Dakota Beef Herd: A Persistent Problem, Suddenly Gone

This case report describes a southeastern South Dakota cow-calf herd’s experiences with pre-weaning pneumonia. Unlike many beef herds that experience pneumonia in calves on pasture, this herd’s problems were consistent year after year: widespread calf illness was documented in each of 6 consecutive summers. Anecdotally at least, the occurrence of pre-weaning pneumonia in beef herds is more likely to be sporadic and unpredictable from year to year. This herd’s persistent problems were followed by a year in which, after a change in calf vaccination protocol (informed by herd diagnostics), very little pre-weaning pneumonia was observed.