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Diseases & Disorders

All Diseases & Disorders Content

SDSU Extension Winter Wheat Variety trials. One plot is showing more yellowing and stress than other plots.

Low Temperature Effects on Winter Wheat

Low temperatures during the early morning hours of May 9–11, 2020 may have had detrimental effects on winter wheat in some areas of South Dakota. However, cooler spring temperatures that have slowed the winter wheat development this year may have actually been beneficial to S.D. producers, as later-maturing wheat is not as susceptible to injury from freezing temperatures.

Green leaves on a buckthorn tree covered with crusty spots of bright orange crown rust inoculum.

Oats Crown Rust Inoculum Abundant This Year

Crown rust is the most important fungal disease of oats in South Dakota. In years with heavy disease pressure, susceptible cultivars can have over 80% yield loss due to crown rust. The presence of crown rust inoculum on buckthorns can be an indication of the likely risk for crown rust to develop during the growing season. Buckthorns scouted recently were loaded with crown rust inoculum.

Two black cattle being isolated in a pen.

Cull Cows and Trichomoniasis

With increasing amounts of cows being sold at the sale barn with reproductive years left, there are some precautions to be aware of prior to bringing females home to re-breed.

Head of garlic with discoloration due to Embellisia Skin Blotch.

Embellisia Skin Blotch of Garlic

Have you noticed irregular, dark areas on the outer scales of your garlic bulbs? It's possible it might have Embellisia skin blotch, a fungal disease that can develop during periods of high summer moisture.

Producer approaching a young dairy calf.

How did a Poultry Germ Change to Cause Severe Disease in Calves and People?

In 2015, a specific strain of a germ called Salmonella heidelberg made 56 people sick in 15 different states.

FDA-approved sharps disposal containers.

Where Do the Sharps Go?

Sharps used in livestock husbandry practices are considered medical or infectious waste. Regardless of why an animal received a shot, it is important to dispose of the needle in a safe way.

Bacterial soft rot on tomato fruit.

Bacterial Soft Rot

Bacterial soft rot is a common disease that can occur in a variety of fruits and vegetables. Learn how to identify and manage it before it impacts your harvest.

a green melon hangs on a trellis

SDSU Extension to host Corn and Melon Disease Workshop at SDSU Southeast Research Farm

August 08, 2023

Field corn, sweet corn and specialty melon growers looking to learn more about identifying and managing common diseases in their crops are invited to attend the South Dakota State University Extension Corn and Melon Disease Workshop.

Three plants with tobacco rattle virus symptoms.

Tobacco Rattle Virus

Tobacco rattle virus is a common ornamental and vegetable virus characterized by ringspots on leaves. Learn what causes it, how to recognize symptoms, and how to prevent it from spreading in your garden.

Green volunteer wheat plants.

Wheat Streak Mosaic Virus Management Before Planting

Wheat streak mosaic virus is one of the important diseases in winter wheat and can lead to severe yield losses. Learn how it can be effectively mitigated by using proactive management in your fields.