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Mosquito resting on a dandelion seed head.

West Nile Virus Update: Aug. 2, 2021

As of Aug. 2, 2021, the South Dakota Department of Health indicated that West-Nile-virus-positive mosquitoes were detected in Brookings, Codington, Hughes, Lincoln and Brown counties in South Dakota.

Mosquito resting on a dandelion seed head.

West Nile Virus Update: Sept. 17, 2021

The South Dakota Department of Health's latest update indicated that West-Nile-virus-positive mosquitoes were detected in Beadle, Brookings, Brown, Codington, Hand, Hughes, Lincoln and Minnehaha counties in South Dakota.

Mosquito with darker coloration and mosquito with white band on proboscis.

Know Your West Nile Virus Vectors

In some areas of South Dakota, recent precipitation has led to an increase in mosquito activity. To reduce the chances of contracting West Nile Virus, it is important to understand the behavior of the mosquitos capable of vectoring it.

A patch of western wheatgrass with ergot fungus growing throughout.

Ergot in Western Wheatgrass and the Potential Effects for Winter Grazing

2019 has been a year fraught with challenges for ranchers across South Dakota. Abundant precipitation is usually a blessing, however, wet conditions coupled with a cool spring followed by warmer temperatures has caused another problem across the rangelands of South Dakota: ergot poisoning.

A red sprayer in a green field with a cloudy sky in the background.

How to Stop Drift

The goals of applying any crop protection products include: increasing effectiveness, mitigating drift, and maximizing profits. We will focus on mitigating drift, even though all three interact with each other.

A stock pond with algae blooms developing throughout.

How Important Is Water Quality to Livestock?

Water is the most important nutrient to all livestock animals and is sometimes overlooked. Poor quality water can have a negative effect on growth, reproduction, and general productivity of the animal.

A rancher inspecting the water quality of a small stock pond.

How Do Sulfates in Water Affect Livestock Health?

Poor-quality water will cause an animal to drink less. As a result, they also consume less forage and feed, which leads to weight loss, decreased milk production and lower fertility.

patch of reed canary grass in pasture

Reed Canary Grass: Possible Prussic Acid & Alkaloid Issues

Prussic acid issues with reed canary grass are poorly understood and may go unrecognized if they occur. This article addresses a little-known but interesting aspect of the biology of reed canary grass.

cattle grazing early spring pasture

Grass Tetany: Now Is the Time To Prepare

Grass tetany is a metabolic disorder associated with grazing lush, rapidly growing pastures. Learn the factors that influence its progression along with tips for preventing and managing it in herds.

Color-coded map of the United States indicating predicted precipitation for July 2019. South Dakota is set to experience above normal precipitation.

July 2019 Climate Outlook: Challenges Continue

This year’s seasonal pattern of wetter than average conditions is projected to continue through July and the rest of the summer season. The latest climate outlook, released June 20, 2019, shows an increased chance of wetter than average conditions in the next one to three months for the state of South Dakota.