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

Wheat field day attendees
Figure 1. A wheat field day at the High Plains Ag Lab in Cheyenne County on June 15.

Wheat Disease Update

June 18, 2021
The majority of fields visited in southern Nebraska this week had only trace levels of Fusarium head blight, but moderate to high levels of FHB were observed in susceptible varieties in a state variety trial in Red Willow County.

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Fusarium head blight
Figure 1. Fusarium head blight in a grower’s field in Nuckolls County on June 8.

Trace to Low Levels of Fusarium Head Blight Observed in Wheat Fields in South-central and Southeast Nebraska

June 10, 2021
In southern Nebraska, Fusarium head blight has been observed. In other parts of the state, hot temperatures have slowed the development of new stripe rust, but heavily infected fields are now experiencing accelerated drying out of leaves.  

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Stripe rust in a field
Figure 1. Stripe rust in a state variety trial at the Eastern Nebraska Research and Extension Center (ENREC) near Mead, Sauders County, on June 2.

Wheat Disease Update: Stripe Rust, Leaf Rust, and Fusarium Head Blight

June 4, 2021
Leaf rust
Figure 2. Leaf rust in a research plot at Havelock Farm in Lincoln, Lancaster County, on June 1.

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Flooded wheat field
Figure 1. A flooded section of a grower’s wheat field in excellent condition in Deuel County on May 25.

Wheat Disease Update

May 27, 2021
Stripe rust and leaf rust confirmed in new counties; Fusarium head blight risk reported as moderate to high in southern Nebraska.

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Wheat stripe rust map

Wheat Disease Update

May 20, 2021
The wheat crop condition was good to excellent in the majority of fields surveyed this week in south central and southwest Nebraska. Stripe rust has been confirmed in 15 counties; leaf rust has been confirmed in one county. 

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Stripe rust

Stripe Rust Confirmed in 11 Counties in Southeast and South-central Nebraska

May 13, 2021
While leaf rust was not observed in any surveyed wheat fields, stripe rust was confirmed in 11 counties this week in southeast and south-central Nebraska.

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Fungal leaf spot

Wheat Disease Update

May 6, 2021
Low levels of disease were surveyed in Nebraska wheat on May 5, with fungal leaf spot disease and barley yellow dwarf identified in Jefferson County.

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Stripe rust
Figure 1: Stripe rust (Photo by Nathan Mueller)

Track Stripe and Leaf Rust in Winter Wheat Across Nebraska

April 29, 2021
Producers are encouraged to report wheat stripe and leaf rust sightings again this year to help Nebraska Extension continue monitoring movement of these crop diseases throughout the state.

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