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A middle portion of a corn leaf enlarged to show tan-brownish lesions with dark brown wavy margins.

Bacterial Leaf Streak of Corn: A New Corn Disease in South Dakota

Bacterial leaf streak, caused by Xanthomonas vasicola pv. vasculorum (Xvv), is a recently discovered disease of corn in South Dakota. The disease was first identified in Nebraska in 2016 but now has been found in the majority of the Corn Belt states. Under favorable weather conditions bacterial leaf streak can develop to reach yield reducing levels. Like any other bacterial disease, once symptoms develop there is little that can be done to control it in the field. However, it is important to correctly diagnose this as a bacterial disease because it can be confused with gray leaf spot which is a fungal disease.

Diseases & Disorders teaser

Fungicide Resistance: Risk and Management

What is fungicide resistance?
Fungicide resistance can be defined as when a pathogen population is no longer sensitive or has reduced sensitivity to the fungicide that used to control the same pathogen.

Two young males participating in the robotics challenge at the South Dakota State Fair

South Dakota 4-H Robotics & Engineering 2019 Challenge Packet - Recycle Challenge

The South Dakota 4-H Robotics Challenge is an opportunity for youth who have been learning about robotics to demonstrate their learning, celebrate their accomplishments, and interact with others who share an interest in robotics.

A young man sitting at a laptop discussing a project with a 4-H leader.

Youth Research: Where to Begin

Whether working on a science fair project, writing a class report, or just looking for general information on a topic it is a good idea to become familiar with the basic practices of conducting research.

Poster display for research project.

Presenting Scientific Information: Display Boards

For youth participating in scientific discovery, posters and display boards are a very common form of communicating scientific information.

A notebook with a pen sitting on it.

Importance of Good Record Keeping: The Science & Engineering Notebook

Scientists and engineers use special notebooks or journals to make daily logs of what they are doing and what they have learned.

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.

Outside of a veterinary clinic.

Veterinary Feed Directive: What You Can’t Do With a VFD

Livestock producers and veterinarians have been adjusting to the Veterinary Feed Directive (VFD) rules put into effect on January 1, 2017. With the onset of the rules, producers need to square their previous treatment methods with what a VFD can and can’t do.

Small group of black angus cattle at pasture.

Springtime Vaccines: Tools For Healthy Summer Calves

Vaccines can be a valuable tool for cattle producers looking to help keep their calves healthy on summer pasture.

young cowgirl running a horse through the pole bending pattern

State 4-H Rodeo Resources

View the documents and forms to participate in the State 4-H Rodeo.