Soybean Disease

Soybean seedling with disease injury

Soilborne and Early Seedling Pathogens and Delayed Planting in Corn and Soybean May 3, 2018

Soilborne pathogens and early seedling diseases may be more frequent in corn and soybean this year due to cool weather conditions this spring and delayed planting.

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Fungicides are for Fungi April 24, 2018

Management of foliar fungal disease is achieved in many of our field crops by applying fungicides. Over the past several years, there have been examples of misidentification of some bacterial diseases that are easily confused for fungal diseases in field crops.

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Frogeye leaf spot
Frogeye leaf spot

Frogeye Leaf Spot Resistance Increasing in Soybean February 21, 2018

While not close to Nebraska yet, fungicide-resistant frogeye leaf spot has been confirmed in eastern Iowa. Ward off problems here by implementing integrated management practices.

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Sudden deaht syndrome in soybean
Sudden death syndrome in soybean

Sudden Death Syndrome Starting to Show up in Soybeans August 16, 2017

Sudden death syndrome often appears in small patches of a field and can be confused with injury from brown stem rot. This story and two field videos examine SDS symptoms and how to differentiate it from other diseases. Once confirmed in a field, management begins with seed selection for the next crop.

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soybean stem canker

Soybean Stem Canker Uncommon, but Found in Southeast Nebraska August 10, 2017

Nebraska Extension Plant Pathologist Loren Giesler shares a short field video on identifying soybean stem canker.

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Wilted, stunted phytophthora
Figure 1. Wilted and stunted soybean plant due to phytophthora in an otherwise healthy field. (Photo taken in Hall County by Sarah Schlund)

Phytophthora Root and Stem Rot Developing in Soybeans July 27, 2017

As conditions heated up the last two weeks, the fungus causing phytophthora root and stem rot became active in irrigated fields and those fields that received significant rain over the past couple weeks. Growers are encouraged to scout for this disease and, if found, manage through seed selection and treatment for the next crop.

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Frogeye leaf spot

Frogeye Leaf Spot in Soybeans in Eastern Nebraska July 27, 2017

Frogeye leaf spot is occurring in Nebraska soybeans, particularly in the eastern third of the state. While some fields have minor levels, some have significant levels and a fungicide treatment may be needed.

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Plant & Pest Diagnostic Clinic Report (June 14) June 15, 2017

The following diseases were reported in samples submitted to the UNL Plant and Pest Diagnostic Lab June 1 to June 14.

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