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Deciding on Fungicide Application to Manage Mid-Late Season Soybean Leaf Fungal Diseases
Soybean leaf diseases can develop in some soybean fields to reach yield-reducing levels. The question that growers often ask is whether it is profitable to apply a fungicide to soybeans at the R3/R4 growth stage in South Dakota.
Southern Rust, Bacterial Leaf Streak, and Eyespot Are Developing in Corn
Southern rust was found in Yankton County, bacterial leaf streak was found in Brule County, and eyespot was found in several fields and counties the week of July 27, 2020.
Volunteer Winter Rye Could Be a Source of Ergot in Your Wheat
A few wheat fields scouted this summer were found with volunteer rye infested with ergot. Volunteer rye, in addition to being a weed, can be a source of ergot, which is a concern for winter wheat producers.
Wheat Streak Mosaic Virus is Prevented Before Planting Winter Wheat
Wheat streak mosaic disease (WSMD) is one of the important diseases in winter wheat and can lead to severe yield losses.
Sudden Death Syndrome of Soybean
Fact sheet discussing sudden death syndrome of soybean.
White Mold (Sclerotinia Stem Rot) of Soybean
Fact sheet of the symptoms and signs for while mold in soybean.
White Mold and Sudden Death Syndrome Starting to Develop
White mold and sudden death syndrome are starting to develop in a number of soybean fields. These two diseases develop starting at the soybean flowering growth stage and can occur throughout the rest of the soybean growing season.
Drought Stress or Stem Canker Killing Soybean Plants?
Several soybean fields scouted in a number of Eastern counties have plants dying or dropping leaves prematurely. While the majority of these fields have drought stress causing early senescence, a few fields have also stem canker developing
September 2020 Climate & Drought Outlook
Summer has its last hurrah the first week of September before we see potential for our state’s first freeze of the fall season, according to NOAA’s Climate Prediction Center.
Sclerotinia Concerns in Sunflower
Sclerotinia diseases are a concern in sunflowers, because the fungus can infect the plant through the root, mid-stalk or the head. Wet weather and cool temperatures two-to-three weeks prior to and during flowering favor disease development.