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Diseases & Disorders

All Diseases & Disorders Content

Three soybean diseases. Brown spot, Phytophthora Root Rot, and white mold.

Mid-to-Late Soybean Disease Management

Even though it has been hot and humid this summer, some soybeans around the state have seen ideal conditions for mid-to-late season disease development. Learn some common diseases to scout for.

Hail-damaged corn field.

Are Fungicides Needed on Crops Damaged by Wind, Sand Blasting or Hail?

When extreme weather brings hail and sand blasting to fields, many growers wonder if a fungicide application is needed afterwards to protect wounded plants from bacterial diseases.

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

Veterinarians Remind South Dakota Cattle Producers To Include Anthrax Vaccination This Spring

May 23, 2022

SDSU Extension and South Dakota Animal Industry Board veterinarians are encouraging South Dakota cattle producers to include the anthrax vaccine in their vaccination program when they turn out cattle to summer pastures this spring.

An apple near a list showing foods that are high and low within the Glycemic Index.

The Connection Between Diet and Acne

Acne vulgaris is one of the top skin conditions in the United States, impacting around 40 to 50 million people. Attention around the connection between diet and acne has been the focus of new research, specifically around high-glycemic diets.

several plots of alfalfa

Aphanomyces Root Rot of Alfalfa

Fact sheet on Aphanomyces Root Rot of Alfalfa

sunflower field

Best Management Practices for Sunflower Production

This is your unbiased, research-based guide to sunflower production, providing the latest recommendations to help increase yield, reduce input costs and protect your investment.

Map showing the risk of Fusarium head blight with green equaling no risk, yellow equaling moderate risk, and red equaling high risk. Much of the eastern half of South Dakota is red.

The Fusarium Head Blight Prediction Tool

The Fusarium head blight prediction tool, available through Penn State University and Mesonet at SDState, uses weather variables to predict the risk for Fusarium head blight in wheat.

A wheat field that is bright yellow due to infection of Wheat streak mosaic virus.

Pre-Plant Wheat Streak Mosaic Disease Management Strategies

Drought conditions tend to promote high wheat curl mite populations. Wheat streak mosaic virus and other viruses transmitted by wheat curl mites are best managed through cultural practices performed before planting.

A wheat field that is bright yellow due to infection of Wheat streak mosaic virus.

Wheat Streak Mosaic of Wheat

Fact sheet about symptoms, disease cycle, risk factors and management of Wheat streak mosaic disease

Three corn cobs with common ear rots. From left: Fusarium ear rot, Gibberella ear and Diplodia ear rot.

Scout for Corn Ear Rots

Several corn fields scouted in northeastern South Dakota counties were found with ear rots. Ear rots were mostly prevalent in areas that experienced hailstorms in the recent past. Ear rots in corn are caused by a few fungal pathogens, and which ear rot develops depends on the weather conditions.