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Pasture

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grey to brown fly with large eyes and elongated mouthparts

What are Those Gigantic Flies?

As we progress later into the summer, we commonly see an increase in horse fly activity.

A herd of cattle gather around a stock pond on a vast, lush grassland. Courtesy: USDA [CC BY 2.0]

The Environmental Disease Called Pinkeye

Plentiful moisture during the grazing season might contribute to what could be called a “bad year” for a certain cattle disease: pinkeye.

Microscope analyzing a slide.

How the Veterinary Lab Diagnoses Anthrax in a Beef Herd

Anthrax is a serious disease of cattle that pops up somewhere almost every year in South Dakota. It’s caused by a bacteria that survives as a very tough spore form in the soil. Knowing whether a death on pasture has been caused by anthrax is important for several reasons.

Two flies side-by-side. The left fly is a Western horse fly. The right fly is a deer fly.

Horse Flies and Deer Flies Becoming Abundant

The above-average precipitation this year has led to increased numbers of horse flies and deer flies across South Dakota. Widespread flooding and an overall abundance of available water has made conditions perfect for these flies.

A close shot of a cow's eye. The cow seems to be in pain.

Anthrax: Vaccination Considerations

Anthrax is caused by bacteria, Bacillus anthracis, which has the ability to form very resistant spores in the soil. These spores can remain viable for many years on pasture, and become reactivated when the right environmental conditions exist. Fortunately for cattle producers, losses due to anthrax can be prevented through use of a vaccine that has proven its effectiveness through the years.

small group of cattle swath grazing pasture

Swath Grazing: Extending the Grazing Season

One proposed way to cut fall/winter feeding costs is to extend the grazing season and allow the livestock to harvest the resource instead of relying on mechanical harvest.

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 thick patch of yellow, flowering leafy spurge plants growing in a pasture.

SDSU Extension Provides Leafy Spurge and Noxious Weed Management Recommendations

May 22, 2020

One of the many challenges producers face each year is weed control. Leafy spurge, in particular, can be difficult to manage.

a young woman's headshot

South Dakota Delegate, Matea Gordon, to Present at the Society for Range Management Annual Conference in Denver

February 07, 2020

Matea Gordon, sophomore at Sturgis Brown High School, has been selected by the South Dakota section of the Society for Range Management (SRM) to participate in the High School Youth Forum (HSYF).

Canada thistle growing in a pasture.

Fall Noxious Weed Control

Fall weed control can give the best weed control, but it also can be a poor time. If the noxious weeds were sprayed or clipped earlier this summer, and there is good weed growth now, this would be an excellent time to spray these weeds and get a good kill.