Plant Disease

Specialty Crops Disease Update

January 10, 2019

The occurrence and distribution of plant pathogens are long known to be strongly influenced by the environment. We see evidence of this concept every season on specialty crops in western Nebraska, and 2018 was no exception.

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What’s New in Plant Pathology

January 9, 2019
This article, from the Proceedings of the 2019 Crop Production Clinics, addresses new and updated product labels for disease management, a report from the Plant and Pest Diagnostic Clinic, changes in the Department of Plant Pathology, and the initial US finding of Fusarium boothii on wheat in Nebraska.

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Cowpea wilt
Figure 1. A two-year study of diseases in Nebraska cowpea, also known as black-eyed pea, found a wilt, similar to bacterial wilt in dry bean, to be most common. (Photos by Bob Harveson)

Cowpea Bacterial Wilt ― An Old Disease in a New Crop

October 9, 2018
As growers in western Nebraska look at new pulse crops to integrate into their rotations, a UNL plant pathologist works to identify possible disease threats. Cowpea (black-eyed pea) is being studied now.

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Stalk rots in corn
Stalk rots in corn

Corn & Soybean Diseases Confirmed Sept. 13-28

September 28, 2018
Various corn stalk rots lead the list of corn and soybean diseases confirmed by the UNL Plant and Pest Diagnostic Clinic September 13 - 28. Diseases are listed by reporting district.

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Soybean leaf exhibiting sudden death syndrome

Diseases Confirmed in Corn, Soybean, and Sorghum Aug. 29 - Sept. 13

September 14, 2018
Sudden death syndrome, charcoal rot, and Anthracnose were among the soybean diseases confirmed by the UNL Plant and Pest Diagnostic Clinic in the last two weeks. In corn gray leaf spot, leaf spots, and crown and root rots led the list of confirmed diseases.

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Frogeye leaf spot on a soybean leaf

Diseases Confirmed in Corn and Soybean July 26-Aug. 15

August 17, 2018
Corn and soybean diseases confirmed by the university's Plant and Pest Diagnostic Clinic from July 26 to August 16.

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Leaf symptoms of brown stem rot of soybean

Crop Diseases Confirmed in Corn and Soybean July 16-26

July 26, 2018
Corn and soybean diseases confirmed by the university's Plant and Pest Diagnostic Clinic July 16-26.

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Loren Giesler, new Head of the UNL Department of Plant Pathology

Loren Giesler Named Head of Plant Pathology Department

July 23, 2018
Loren Giesler has been named head of the Plant Pathology Department at the University of Nebraska–Lincoln, effective Sept. 1, 2018. A long-time contributor to CropWatch, Giesler is a professor and extension plant pathologist in the department.

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