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Tan-gray Goss’s bacterial blight lesions were observed in scouted corn fields.

Goss's Bacterial Wilt and Leaf Blight of Corn

Fact sheet for identifying Goss’s bacterial wilt and leaf blight of corn, also known
as bacterial leaf freckles and wilt.

Oat leaf with very low crown rust.

Crown Rust of Oats

Fact sheet on Crown Rust of Oats for agronomist and growers.

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.

Canada thistle growing in a pasture.

Noxious Weeds of South Dakota

Pictorial reference guide of noxious weeds in South Dakota

2022 4-H Volunteer Hall of Fame Awardee with family.

South Dakota 4-H Recognizes Volunteers during the 2022 State Fair

October 19, 2022

South Dakota 4-H inducted nine individuals into to the 4-H Volunteer Hall of Fame and 4-H Shooting Sports Volunteer Hall of Fame on Sunday, Sept. 4, at the 2022 South Dakota State Fair in Huron, South Dakota.

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.

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.

snow plow clearing a highway

Are you ready for winter? ¿Està listo para el invierno?

The first winter experience can be a challenge if you don’t know what is ahead, except for that there will be snow and cold. Some simple tips will help you survive the snow, ice and low temperatures.

woman showing bugs to a group of adult learners

SDSU Extension Master Gardener Online Reporting System

Better Impact is a web-based tool where Master Gardeners can log their hours, update their contact information, see the latest news, and much more.