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 stem maggot

Wheat Disease Update — June 10

June 10, 2022
Growers in southeast Nebraska have detected trace levels of foliar fungal diseases in wheat fields; no rust diseases have been reported yet. 

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Wheat streak mosaic

Wheat Disease Update: Barley Yellow Dwarf and Wheat Streak Mosaic

June 9, 2022
Widespread wheat streak mosaic and severe barley yellow dwarf have been scouted in Panhandle wheat fields.

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Wheat streak mosaic

Wheat Disease Update: May 19

May 20, 2022
Recent drought-like conditions have slowed the onset of diseases in wheat fields, with only trace levels of diseases observed in southeast Nebraska so far.

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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
This week high levels of stripe rust and leaf rust were observed in wheat plots at the Eastern Nebraska Research and Extension Center (ENREC) near Mead, Sauders County, and at Havelock Farm in Lincoln, Lancaster County.

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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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