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Diseases & Disorders

All Diseases & Disorders Content

Brown and white cow grazing on standing cornstalks

Considerations for Grazing Standing Corn

Grazing standing corn is a viable option to supply nutrients to livestock. However, mitigating risk is critical to ensure healthy animals and optimize crops.

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.

Young woman photographing leaf-scorched hostas in a garden.

Garden and Yard Problems Solved: How to Submit Photos and Samples to Our Experts

Garden and lawn issues can sometimes be diagnosed by simply looking at a photo. Photos give our Extension experts a place to start, and providing them with the best possible photo can help the process.

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.

Left: Large green leaves of hosta have white and yellow discoloration on the outside edge of the leaves. Right: A green pepper with a tan spot that appears mushy.

Leaf Scorch and Sunscald in the Garden

Long stretches of hot, dry weather will upset the growing habits of all plants and will lead to some unusual symptoms on leaves and produce in the garden. July and August are a prime time to watch for leaf scorch and sunscald.

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.

plant with herbicide damaged leaves

Herbicide Damage to Fruits and Vegetables

Each year in early summer, many growers begin to notice distorted leaves on their fruits, vegetables, and crops. Most commonly the cause is a herbicide application to a nearby field.

Group of black angus calves in a pen under summer heat.

Vaccinating Early-Weaned Beef Calves

In most years, pre-weaning vaccinations are a task completed in early fall. However, in dry years, poor pasture conditions forcing producers to wean calves early may push up that timeline.

young calf resting in pasture

Summer Pneumonia in the Beef Herd

Respiratory disease in pre-weaned beef calves on pasture can be a concern for cow-calf producers, and outbreaks are frustrating for cattle producers and veterinarians alike.

Black angus bull at pasture with two cows in the background.

Reproductive Injuries in Bulls on Pasture

While reproductive injuries in bulls might not occur every year in a given cow-calf operation, they’re one of the most-common reasons bulls are examined by veterinarians during the breeding season.