Plant Disease

SDS foliar symptoms

Triazole Phytotoxicity in Soybeans

August 26, 2021
Soybeans across Nebraska are currently presenting symptoms common with Sudden Death Syndrome and Brown Stem Rot; however, recent samples indicate many of the affected fields are experiencing phytotoxicity due to the application of a triazole (DMI) fungicide.

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Crown rot in stem

Crown and Stalk Rot Sampling Tips

August 26, 2021
As you continue to scout fields late in the season, it is important to collect the right kind of sample to ensure proper diagnosis.

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Rhizoctonia root rot of soybeans
Photo 1. Rhizoctonia root rot of soybeans. Lesions near the soil line tend to be sunken and dry.

Disease Reports from the UNL Diagnostic Clinic — June 30

July 1, 2021
Several diseases were reported in samples submitted to the UNL Plant and Pest Diagnostic Clinic from June 15 through June 30, 2021.

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southern rust and grey leaf spot on corn

Disease Reports from the UNL Diagnostic Clinic – July 31

July 30, 2020
Several diseases were reported in samples submitted to the UNL Plant and Pest Diagnostic Clinic from July 15 through July 30, 2020.

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Bob Harveson
Bob Harveson

Harveson Receives APS Distinguished Service Award for Region

August 28, 2019
The Distinguished Service Award recognizes outstanding effort in teaching, control of a significant plant disease, or service to the science of plant pathology. In nominating Harveson, his peers touted his work across multiple areas.

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Tamra Jackson-Ziems
Tamra Jackson-Ziems

June Podcast: Mid-Season Diseases in Corn and Soybean

June 27, 2019
Corn nematodes, bacterial leaf streak, and frogeye leafspot, oh my! Extension Plant Pathologist Tamra Jackson-Ziems returns to the Nebraska CropWatch Podcast with information on mid-season corn and soybean diseases.

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Crop Diseases Confirmed by UNL Plant & Pest Diagnostic Clinic

June 14, 2019
Report of the diseases reported in samples submitted to the UNL Plant and Pest Diagnostic Lab from May 15 to June 14 for corn, soybean, and wheat.

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Goss's Wilt of corn

Nebraska Plant Pathology: A Culture of New Diseases

January 23, 2019
Though relatively small, UNL's Department of Plant Pathology has played a significant role in the discovery of many economically important plant diseases, including most recently, a new fungal pathogen causing Fusarium head blight of wheat. This article is from the 2019 Nebraska Crop Management Conference Proceedings.

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