Diseases & Disorders

All Diseases & Disorders Content

Mosquito with darker coloration and mosquito with white band on proboscis.

Be Ready for Mosquitos

With the very wet 2019 spring and recent rains, it inevitable that mosquito populations will be high this year. Although there are over 20 species of mosquitoes that call South Dakota home, there are really only two species that account for the majority of observed individuals.

Phytophthora root and stem rot damage observed in a field of soybeans.

Watch Out for Phytophthora Root and Stem Rot in Soybean

Current weather conditions of continuous rainfall are saturating our fields, which is creating a favorable environment for Phytophthora root and stem rot.

Green veins are striking compared to the necrotic (brown) tissue on SDS-infected soybean.

Are You at Risk for Sudden Death Syndrome in Soybean?

The present weather conditions of heavy rainfall and cool temperatures provide a favorable environment for sudden death syndrome in soybeans. Learn some expert tips for identifying and managing it this growing season.

Young woman holding an older woman’s hands.

SDSU Extension to host disease management workshops

May 29, 2024

South Dakota State University Extension will continue its 10th anniversary celebration of Better Choices, Better Health-South Dakota with a series of virtual workshops on disease, pain and cancer self-management.

Wheat leaf showing symptoms of Septoria.

Look Out For Early Season Wheat Diseases

Conditions have been favorable for disease development in South Dakota winter wheat fields, especially for Septoria. It’s important to scout fields to determine what diseases are present before deciding to apply a fungicide early in the season.

Hand holding a heart-shaped bowl of fruits and vegetables near a clipboard, stethoscope, and glucose meter.

SDSU Extension program hosting diabetes self-management workshop in Mitchell

April 11, 2024

South Dakota State University Extension will host a series of Better Choices, Better Health-South Dakota workshops on diabetes management in Mitchell. The workshops are from 9:30 a.m. to noon CDT every Thursday from May 2 to June 6, 2024, at the Mitchell Recreation Center. They are free to attend and registration is required.

Facility inspector inspecting animals at a large dairy farm.

Avian Influenza Viruses in Dairy Cows: What is the role of biosecurity?

The recent finding of an avian influenza virus in dairy cows suffering from a previously unknown disease syndrome has brought attention to disease control and detection methods on dairy operations.

Alternaria leaf spot symptoms appearing as brown, haloed cankers throughout the leaves of a cucurbit plant.

Cucurbit Diseases in South Dakota

Cucurbit crops grown in both the field and in high tunnels face disease pressure from many fungal and bacterial diseases. Learn how to identify and manage some of the most common ones.

Emerging soybean seedlings with chilling injury.

Chilling Injury

Concerned about row crop emergence due to cool spring weather? Learn what crops are most vulnerable to chilling injury and how you can mitigate risk during spring planting.

Oat leaves covered in orange pustules.

Crown Rust of Oats

Crown rust continues to be the most economically damaging and important fungal diseases of oats in South Dakota. Learn how to recognize and manage it in oat fields this growing season.