Stephen Wegulo
faculty
Work
PLSH 406H
Lincoln
NE
68583-0722
US
Work
402-472-8735
On campus, dial 2-8735
Faculty Bio
Website:Wheat Diseasesection ofCropWatch Plant Disease Management
Twitter:@wegulo2
Why Control of Volunteer Wheat is Critical to Protecting 2018 Yields
July 13, 2017
及时控制小麦和其他志愿者的杂草is key to managing yield loss risk in your 2018 crop. Yield-limiting risk factors affected by weed control include wheat streak mosaic and other diseases, insects (wheat stem sawfly and disease vectors), moisture loss, and increased weed seed production.
Wheat Disease Update: Stripe Rust, Leaf Rust, Wheat Streak Mosaic at High Levels
June 9, 2017
A survey of fields in south central, southeast, and northeast Nebraska shows wheat diseases increasing in severity and occurrence. Stripe rust and leaf rust have developed to severe levels in fields plant with susceptible varieties that weren't sprayed to protect the flag leaf.
Stripe Rust Predominant Disease in Nebraska Wheat
May 26, 2017
In a survey of wheat fields and research plots in south central and southeast Nebraska on May 24-25, stripe rust was the predominant fungal disease found. Its increase is due to the rainfall and cool temperatures that have prevailed during the last two weeks.
Stripe Rust Increasing in Nebraska Wheat
May 25, 2017
Recent rainfall and cool temperatures have favored development of stripe rust to severe levels on flag leaves in fields that have not been sprayed as shown inFigure 1, a photo taken Wednesday, May 24, in a grower’s field in Webster County in south-central Nebraska.
Wheat Disease Update: Wheat Streak Mosaic
May 19, 2017
A survey of wheat fields in the Nebraska Panhandle found only trace levels of stripe rust and low levels of tan spot, but widespread areas of wheat streak mosaic virus with severity ranging from mild to severe.
Wheat Disease Update in Eastern Nebraska
May 12, 2017
Research plots at UNL’s Agricultural Research and Development Center (ARDC) were surveyed for diseases on May 12. These plots are not sprayed with fungicide and therefore the diseases and disease levels in them can be representative of those in growers’ fields under similar conditions. Here's what we found.
Wheat Update: Leaf Rust Confirmed, Stripe Rust Widespread But at Low Levels
May 8, 2017
Because of the presence of stripe rust and leaf rust in the state, as well as increasing incidence and severity of Septoria leaf blotch and tan spot, growers are encouraged to be vigilant in scouting their fields.
Stripe Rust Confirmed in Wheat in South Central and Southeast Nebraska; Other Diseases Increasing
April 28, 2017
Wheat fields are still looking green (Figure 1). However, development of several diseases is increasing. On April 26, stripe rust was confirmed in Nuckolls County in south central Nebraska and on April 27, it was found at low to moderate levels in research plots at the University of Nebraska-Lincoln’s Havelock Research Farm near Lincoln in Lancaster County (Figure 2).