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Mosquito resting on a dandelion seed head.

West Nile Virus Update: Sept. 17, 2021

The South Dakota Department of Health's latest update indicated that West-Nile-virus-positive mosquitoes were detected in Beadle, Brookings, Brown, Codington, Hand, Hughes, Lincoln and Minnehaha counties in South Dakota.

hands holding a 4-H coin and a gps navigational device

Science, Technology, Engineering and Math (STEM)

STEM programing supports youth in developing a variety of skills including critical thinking, team work and communication.

Mosquito resting on a dandelion seed head.

West Nile Virus Update: Aug. 2, 2021

As of Aug. 2, 2021, the South Dakota Department of Health indicated that West-Nile-virus-positive mosquitoes were detected in Brookings, Codington, Hughes, Lincoln and Brown counties in South Dakota.

Color-coded map of South Dakota indicating the fiftieth percentile, for first fall occurrence of 32 degrees Fahrenheit. For assistance reading this graphic and data set, please call SDSU Extension at 605-688-4792.

First Fall Frost Dates

The first fall frost often marks the end of the growing season, and many garden plants may not survive the freezing temperatures. Learn about some available tools we can use to predict the first fall frost dates around the state.

Youth being fitted with a bike helmet.

4-H Bike Rodeo and Safety

Overview document including complete lesson plans for a 4-H Bike Rodeo and Safety program to make youth aware of the importance of riding their bike.

Three bees on a wooden box.

Backyard Biodiversity: Nest boxes for native bees

Many of our native bee species are solitary. In order to ensure that these kinds of bees spend more time in our yards and gardens, it is important to make sure we include places for them to nest.

bunches of Aronia berries still on a bush

Soil Testing for Vineyards in South Dakota

Not all soils are conducive to growing quality grapes, so prospective vineyard sites should be tested before a decision is made to plant grapes. Tests can identify soils that are either too high in pH, salts, or salinity, or that are “too rich” (too high in organic matter and nitrogen) for grapes. In addition, testing before planting allows for the incorporation of nutrients—such as phosphorus—that do not move easily through the soil to plant roots.

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.