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A group of brown cattle foraging in a green field.

Prussic Acid Poisoning

As the first frost date approaches, producers often have concerns about the risk of prussic acid poisoning in livestock. Certain forage plants, especially sorghums and related species are associated with an increased risk of death loss because of prussic acid poisoning.

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.

Outside entrance to a large-animal veterinary clinic.

COVID-19 and Livestock: Is there a connection?

When reports of the COVID-19 pandemic first hit the US, very few people had likely heard of coronaviruses—with some notable exceptions: cattle producers and their veterinarians.

A close shot of a black and red cow's face. A blurred white cow's head is in the foreground.

Testing Your Beef Cattle for Bovine Viral Diarrhea Virus

Bovine Viral Diarrhea Virus (BVDV) is among the most important pathogens affecting today’s beef and dairy cattle operations. Associated with reproductive, digestive, and respiratory illnesses in cattle, the virus can also create a congenital, persistent infection in calves, greatly aiding the virus’ spread within and between herds.

A brown cow and a black calf standing in a muddy, water-soaked feedlot.

Notes From the ADRDL: Yersinia Infections in Beef Cattle

Of all the germs associated with cattle illnesses, a pathogen that’s not one of the usual suspects has been identified in several cases of cattle death losses in Eastern South Dakota.

Two adult wasps side-by-side. The left is black and yellow and is resting on a green leaf. The right is black, yellow and burnt orange in color and is resting on a piece of wood.

Wasp Activity Is Ramping Up

With their distinctive black and yellow stripes and tendency to hang out in groups, wasps receive attention no matter the time of year. As the weather warms up and spring progresses, you may notice more wasp activity in your yard or around your house.

Two insects. The left is a wasp with a dark head, reddish brown thorax (the segment behind the head), and a black and yellow banded abdomen. The right is a hornet with a yellow head, dark brown thorax (the segment behind the head), and a brown and yellow banded abdomen.

No, It’s Not a Murder Hornet.

By now, you’ve probably read headlines about the Asian giant hornets (aka “murder hornets”) that were spotted in Washington state and across the border in Canada. It is important to note that Asian giant hornets have only been confirmed in a small area of Washington and Canada. These wasps have not been observed in South Dakota or our neighboring states.

Teardrop shaped tick with a dark brown body and legs and an elongate white patch behind its head.

Ticks Becoming Active in South Dakota

The arrival of spring in South Dakota means warmer weather and more outdoor activities. However, it also brings an increase in tick activity.

Black insect with a white spot on the back and orange tipped legs and antennae.

A fly? A hornet? Nope, it’s a sawfly!

This spring, there have been multiple reports of people seeing large fly-like insects in their yards. These insects are sawflies, and all reports thus far have been the elm sawfly (Cimbex americana).

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.