Southern Rust of Corn Confirmed in Nebraska
July 20, 2018
Southern rust has been confirmed in corn in three eastern Nebraska counties this week. Corn fields should be scouted soon and frequently in the coming weeks for this and other diseases in case treatment is necessary.
What’s New in Plant Pathology: Changes in the Plant & Pest Diagnostic Clinic
January 8, 2018
New to the Plant and Pest Diagnostic Clinic is Kyle Broderick, who became coordinator after working as an extension technologist in a University of Nebraska soybean pathology lab for six years. An article from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics.
![Figure 1. Goss’s bacterial wilt and blight (top) and northern corn leaf blight (lower) lesions may be easily confused. Note the darker water-soaked appearance of the Goss’s wilt lesion and presence of the dark freckles. The northern corn leaf blight lesion is tan in color and has rounded ends. (Photos by Tamra Jackson-Ziems) Goss's bacterial wilt and blight and northern corn leaf blight on the same corn leaf.](https://cropwatch.unl.edu/styles/large/public/images/hero/2018/corn-Goss-NCLB-lesions-same-leaf.jpg?itok=bmJRR_rN)
Differentiating Corn Leaf Diseases
June 29, 2018
Symptoms of various corn leaf diseases can look very similar in the early stages. Here's how to differentiate one from another of those recently reported in the state.
Flooding and Ponding in Corn
June 22, 2018
Ponding or flooding of fields affects corn differently at different stages, depending on duration of flooding and other factors. Growers should assess the potential for nitrogen loss and increase scouting for corn disease in these fields.
Severe Storms and Hail-Damaged Crops: Steps for Making the Right Decisions
June 14, 2018
After recent severe storms that rolled across parts of Nebraska, growers are encouraged to wait 7-10 days to fully assess crop damage and determine next management steps. Research-based estimated yields from replanting now are included.
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.
Fungicides are for Fungi
January 8, 2018
Symptoms of bacterial diseases can be easily confused with those of fungal diseases in field crops. This article, from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics, reviews some of the common mistakes made in the major field crops and reviews research on the impact of fungicide use after hail events in corn and soybean.
Corn Disease Update
January 8, 2018
A review of diseases to expect in Nebraska corn for 2018. An article in the 2018 Crop Production Clinic Proceedings.