Soybean Disease

Frogeye leaf spot
Figure 1. Frogeye leaf spot on soybean

Frogeye Leaf Spot in Northeast Nebraska

August 19, 2019
Moderate to severe frogeye leaf spot is being reported on soybean in northeast Nebraska. Pathogen resistance to QoI fungicide is suspected in two fields. If you suspect resistance, contact the author for possible testing.

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Frogeye leaf spot in soybean

Extension Crop and Pest Reports (August 12-16)

August 16, 2019
Twitter reports from Nebraska Extension of what to watch for in the field.

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Psysoderma brown spot

PP&DC Disease Reports

August 9, 2019
Corn and soybean diseases confirmed by the Plant, Pest and Diagnostic Clinic and reported by district.

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Soybean root lesion

New CW Podcast on Soybean Seedling Diseases

April 26, 2019
Tune in to this CropWatch podcast on seed and early season issues with soybean diseases. Is your seed selection or treatment well matched with historical problems in the field? What should you be watching for at emergence and what are your management options.

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Soybean Disease Update

January 11, 2019

In 2018 an array of weather conditions led to the development of several soybean diseases. Excessive early season moisture and heavy rains during the season resulted in many fields being impacted by Phytophthora root and stem rot. Frogeye leaf spot developed early in some areas and continues to build in the state with more fields being affected.

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Treated soybean seed

Q&A: When Does Soybean Seed Treatment Pay?

November 8, 2018
A farmer who is ordering soybean seed this fall asks "At $20 per unit, when does soybean seed treatment pay?" Here's what to consider when deciding whether to order fungicide and insecticide treatments for your soybean seed this year.

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Purple seed stain on soybean seed

Cercospora Purple Seed Stain and Blight in Some Nebraska Fields

September 19, 2018
High humidity and warm temperatures created conditions optimal for development of Purple Seed Stain and Blight in some Nebraska soybean fields.

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Advanced sudden death syndrome in soybean

Soybean Sudden Death Syndrome in West Central Nebraska

August 24, 2018
Sudden Death Syndrome (SDS) was found in soybean near Sutherland in west central Nebraska last Friday. While uncommon in the area, moist conditions earlier in the year would have been favorable for its development.

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