Stephen Wegulo - Extension Plant Pathologist

Stephen Wegulo

faculty
Work Plant Sciences Hall (PLSH) 406H
Lincoln NE 68583-0722
US
Work 402-472-8735 On campus, dial 2-8735

Faculty Bio
Website: Wheat Disease section of CropWatch Plant Disease Management
Twitter: @wegulo2

Powdery mildew in wheat

Levels of Wheat Diseases Low, But Likely to Increase

May 17, 2019
A survey of wheat fields May 13-16 in the southeast, south central, southwest, and southern Panhandle regions of Nebraska revealed trace to low levels of disease, with most fields a luxuriant green with a high yield potential.

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(L-R) Wheat leaves with stripe rust, leaf rust, and powdery mildew

It is Time to Start Scouting for Wheat Diseases

April 18, 2019
The wheat growing season in Nebraska has started and and regular scouting for early disease detection is recommended, and will be especially important this year due to the excessive moisture we've had.

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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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Bacterial leaf streak in wheat

Wheat Disease Update: Bacterial Streak and Black Chaff

January 10, 2019
In this article from the Proceedings of the 2019 Crop Production Clinics the author reviews disease impacts in wheat, particularly bacterial streak, also known as black chaff.

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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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UNL variety trials conducted in eastern Nebraska are an important process to help guide grower’s variety selection.
Figure 1. UNL variety trials conducted in eastern Nebraska are an important process to help guide grower’s variety selection.

Winter Wheat Varieties with an Eastern Nebraska Fit

September 27, 2018
Winter wheat growers in eastern Nebraska will want to check out the newer winter wheat varieties described here as well as a table of comparable traits to aid in selecting a variety best suited for their operation.

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Stinking smut (left) and loose smut of winter wheat
Fungal diseases of wheat include stinking smut (left, Figure 1) and loose smut (right, Figure 2). (Photos by Stephen Wegulo)

Should I Plant Treated Wheat Seed?

August 29, 2018
Using clean, certified, treated winter wheat seed optimizes the chances of obtaining high yields. Seed-transmitted diseases and fall insects can reduce grain yield as well as quality next summer.

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Photos of two very different eastern Nebraska wheat fields
Figure 1. Photos of both of these eastern Nebraska wheat fields were taken June 16, 2018 and show the contrast between wheat grown in Thayer County (left) in southeast Nebraska where precipitation was much below normal and a field in Washington County in east central Nebraska where there was sufficient soil mosture throughout the season. (Photos by Brad Heinrichs (left) and Nathan Mueller)

Recap of 2017-18 Eastern Nebraska Winter Wheat Crop

July 25, 2018
Winter wheat yields in eastern Nebraska were quite variable in 2018, ranging from 10 to 80 bu/ac, depending on precipitation. This review of the growing season examines some of the factors affecting yields in southeast, east central, and northeast Nebraska.

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