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Diseases & Disorders

All Diseases & Disorders Content

Corn leaf with trace amounts of tar spot.

Tar Spot Confirmed in South Dakota

Trace amounts of tar spot were recently found in Yankton and Bon Homme counties and are thought to have originated from corn residue instead of windblown spores. This speaks to the importance of crop rotation in the management of this disease.

Producer examining a white lamb.

Coccidiosis in Lambs

Coccidiosis in lambs is a significant health concern that requires prompt recognition and treatment to minimize its impact. It primarily impacts young lambs, leading to severe gastrointestinal distress and potential economic losses for sheep producers.

Leaf with noticeable powdery mildew symptoms.

Powdery Mildew Presence in Your Garden: How to identify and prevent it

Powdery mildew is a common fungal disease that targets a wide range of hosts. It is important to identify its presence as soon as possible to slow its spread and prevent irreversible damage.

Barn and farmyard with severe structural damage from a windstorm.

Tetanus: A Storm Aftermath Problem for Animals

Of all the challenges faced by animal caretakers in the wake of damaging storms, Tetanus is a potentially serious disease that might not appear for days or weeks later. Learn some expert tips for recognizing, treating and preventing it.

Rows of empty white, plastic pesticide containers.

2025 Pesticide Container Recycling

The South Dakota Department of Agriculture and Natural Resources is again offering pesticide container recycling services across the state. View a complete list of 2025 dates and locations.

Green wheat plants with some yellowing throughout.

Keep Watch: Wheat Streak Mosaic Virus is Developing in South Dakota Fields

Wheat Streak Mosaic Virus has been reported in South Dakota wheat fields and is also a major wheat disease for Great Plains states in 2025. The virus is sweeping across the state and is rampant in winter wheat.

Map of South Dakota with Mesonet stations marked with blue dots.

How to Use the South Dakota Mesonet Small Grains Tool

South Dakota Mesonet Small Grains Tool is an easy-to-use and efficient tool that can help identify disease risks associated with wheat leaf rust, wheat leaf spot diseases, and Fusarium head blight.

Fusarium Risk Tool map for May 29, 2025. For a detailed description, please call SDSU Extension at 605-688-4792.

Fusarium Head Blight Update: May 29, 2025

Fusarium head blight, also known as scab, is a fungal disease that infects wheat heads during flowering. Recent weather conditions across South Dakota have provided the environment needed for Fusarium head blight to begin infection.

Woman caregiver helping older adult walk

Building Better Caregivers

Approximately 40 million Americans provide unpaid care to older adults with disabilities, the majority of whom also juggle a job or other responsibilities.

Black angus cow with calf in a well-kept cattle pen.

Are Ionophores the Key for Managing Coccidiosis in Calves?

Ionophores are feed additives commonly used in cattle diets to increase feed efficiency and growth.