Soybean Disease

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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Soybean fungicide calculator

Research in 4 North Central States Shows Limited Response with Fungicide in R3 Soybeans February 3, 2017

In a multi-year summary of soybean studies with fungicide and insecticide applications in the north central United States, university researchers combined trial data to estimate overall profitability of foliar applications at the R3 growth stage (beginning pod development).

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Soybean cyst nematode cysts on soybean
Soybean cyst nematode cysts on soybean

Test for SCN This Fall & Select Seed Accordingly October 31, 2016

If you noticed some areas of your soybean fields that didn't yield as well as expected, this fall would be a good time to soil test for soybean cyst nematode. In University of Nebraska research of SCN-infested fields, switching to an SCN-resistant variety increased yields as much as 6 bu/ac.

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PPDC Reporting Districts
PPDC Reporting Districts

Corn and Soybean Diseases Reported by UNL PPDC September 9, 2016

The following diseases were reported in samples submitted to the UNL Plant and Pest Diagnostic Lab July 1 to Sept. 8.

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