Bacterial Leaf Streak

wheat showing signs of disease

Wheat Disease Update

January 27, 2020
In 2019, wet weather during the growing season favored the development of wheat diseases including Fusarium head blight, leaf rust, stripe rust, bacterial streak, and take-all. This update highlights these diseases, the environmental factors that favor their development, and their management.

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Physoderma brown spot lesions

Corn Disease Update

January 8, 2020
In 2019, wet weather during the growing season favored the development of numerous corn diseases including Physoderma brown spot, bacterial leaf streak, stalk rot diseases, and ear rot diseases. This update highlights these diseases, the environmental factors that favor their development, and their management.

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Bacterial leaf streak on corn

Bacterial Leaf Streak of Corn in Nebraska

June 27, 2019
Bacterial leaf streak of corn is increasing as Nebraska. When scouting, growers should take time to differentiate it from gray leaf spot as fungicides will not work on bacterial leaf streak but will help control gray leaf spot.

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Map showing the 70 counties where bacterial leaf streak has how been confirmred.
Bacterial leaf streak has now been confirmed in corn in 70 Nebraska counties.

Crop Disease Update

August 10, 2018
Plant pathologists report on the corn and soybean diseases they're seeing. Bacterial leaf streak has now been confirmed in 70 counties and Southern rust was confirmed in three more counties.

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Bacterial leaf streak and Goss's wilt
Figure 1. (left) Corn leaves with bacterial leaf streak may appear to have a yellow halo around lesions. (right) Recent wet conditions and wounding from hail or storms favor development of Goss's wilt, shown here. (Photos by Tamra Jackson-Ziems)

Conditions Right for Development of Corn Diseases

June 7, 2018
Severe weather and wet conditions across much of Nebraska this week may favor increased development of diseases in corn, particularly bacterial leaf streak and Goss’s bacterial wilt and blight. For assistance in correctly identifying diseases, submit samples to the Plant & Pest Diagnostic Clinic.

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Bacterial leaf streak in corn
Figure 1. Bacterial leaf streak symptoms on corn are interveinal streaks that may appear tan, brown, or especially yellow when backlit by the sun.

Bacterial Leaf Streak of Corn

August 25, 2017
Bacterial leaf streak was just confirmed in Nebraska in 2016, the first incidence in the US, but has now spread to 56 counties and is found in eight other states.Learn about factors contributing to its development and "host" plants, as well as management options.

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Southern rust pustules on a corn leaf

Corn Disease Update: Southern Rust Increasing; Diplodia New to Nebraska

July 27, 2017
Warm, wet conditions across Nebraska the past two weeks created optimal conditions for crop diseases. This update looks at identification and management of three diseases in corn: southern rust, which is expanding in the state, bacterial leaf streak, and diplodia, which is new to Nebraska.

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Bacterial leaf streak lesions may vary in color and length, but will be between veins and often have wavy margins. (UNL Photos)

Detection and Characterization of the Causal Agent for Bacterial Leaf Streak in Corn

July 7, 2017
When a new crop disease strikes, researchers dig in to identify its characteristics. Noting how it's similar to and different from other diseases are part of defining it so plant pathologists can better confirm its presence in the field, monitor its spread, and develop appropriate management practices. Here's the story of how plant pathologists identified bacterial leaf streak.

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