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Barley yellow dwarf developing in winter wheat.
Barley yellow dwarf is starting to develop in winter wheat. Barley yellow dwarf is caused by the Barley yellow dwarf virus (BYDV). This disease usually becomes more distinct at flag leaf emergence. A typical symptom of Barley yellow dwarf is the purplish-yellow color of infected leaves, especially the flag leaf.

Fusarium Root and Crown Rot Developing in Corn
A few corn fields scouted in Brookings County were found with Fusarium root rot at low levels. Infected plants were wilting and upon splitting of the lower nodes revealed brown discoloration of the pith. Root and crown rots developing in corn after the seedling stage are usually caused by Fusarium spp. and can be enhanced by injury to the roots or crown, mainly by insect feeding.

Winter Wheat Diseases Update: Fungal Diseases and Barley Yellow Dwarf Developing
Tan spot and powdery mildew as well as barley yellow dwarf were found developing at low levels in winter wheat fields scouted the week of May 24, 2020.

Double-Crop after Wheat?
Two crops in one year may sound tempting, and for some crop species is possible, but before doing so, producers should consider possible crops and compare the potential benefits with the drawbacks.

Become a State 4-H Ambassador
Curious about what it takes to become a South Dakota State 4-H Ambassador? View the position descriptions, term timeline, and application process.

Does Cold Weather Contribute to Pneumonia in Calves?
Prolonged winter cold has some fairly obvious effects on cattle of all ages.

2022 Fall and Early Winter Climate Outlook
The warmth of September is likely to continue into October with odds leaning towards drier than average conditions according to the latest climate outlook released on September 15, 2022.

Dectes Stem Borer Adults Active in Sunflower
In South Dakota, one of the insects that is commonly observed in sunflower is the Dectes stem borer larva. At this point in the season, adults are beginning to become active with females laying eggs in sunflower plants.

Corn Disease Update: September 2, 2025
As of September 2, 2025, a number of corn diseases have been reported and confirmed throughout South Dakota. View our latest findings as we approach the fall harvest season.

West Nile Virus Update: September 10, 2025
As of September 10, 2025, the South Dakota Department of Health (SD DOH) reported 59 human cases of West Nile virus from Beadle, Bon Homme, Brookings, Brown, Charles Mix, Codington, Corson, Grant, Gregory, Hamlin, Hand, Hughes, Hutchison, Hyde, Lawrence, Lincoln, Marshall, Meade, Miner, Minnehaha, Pennington, Sanborn, Spink, and Walworth counties.