Stripe Rust in Wheat
September 2, 2016
This is from a four-part series on stripe rust's history and geographic distribution, biology and life cycle, causes of recent severe epidemics, and management options. Find all the stories on the UNL Panhandle Research and Extension Center website under Panhandle Perspectives.
Pre-Planting Steps for Managing Winter Wheat Diseases
August 4, 2016
Paying attention to these five areas before planting winter wheat can help assure a healthier crop for 2017: planting at the appropriate date, using tolerant cultivars, planting into a firm seedbed, controlling weeds and volunteer wheat, and treating seed with fungicide.
Control Volunteer Winter Wheat and Other Weeds Now to Increase and Protect 2017 Yields, Income
June 23, 2016
By far, the greatest risk of losses from mite-vectored viruses occurs when there is a summer "green bridge" of volunteer wheat emerging before harvest. This almost always occurs as a result of wheat seed head shatter from hail storms (Figure 1).
Wheat Disease Update
June 10, 2016
A survey of wheat research plots in east central Nebraska found a variety of diseases, including severe rust on wheat and barley.
Stripe Rust Increasing; Spray Your Wheat to Protect the Flag Leaf
June 2, 2016
Stripe rust has significantly increased in all wheat-growing areas in Nebraska. It is recommended that wheat be treated with a fungicide to protect the flag leaf. If the incidence (percentage of flag leaves diseased) or severity (percentage of the flag leaf area diseased) is less than 50%, spraying a fungicide will significantly reduce yield loss due to stripe rust.
Wheat Disease Update - Late May
May 26, 2016
A survey of wheat fields in southeast and south central Nebraska this week found most fields looking healthy with little or no disease. Fungal and virus diseases were found at varying levels in some fields. Depending on growth stage and disease present, fungicides may still be beneficial.
Head Diseases, Barley Yellow Dwarf in Wheat
May 19, 2016
With wheat headed or flowering in southeast and south central Nebraska, head diseases are starting to appear, including Fusarium head blight, loose smut, white mold (scab) and barley yellow dwarf. Wheat stem maggots were also causing damage.
Factors to Consider When Deciding Whether to Treat Stripe Rust in Wheat
May 22, 2015
The first appearance of stripe rust pustules in a field indicates that spores arrived in the field and initiated infections at least seven days earlier. Apply a fungicide if stripe rust is seen in a field and the following conditions or factors exist:
- Wet, cool weather.
- The flag leaf has emerged (or earlier depending on the situation).
- It's a susceptible variety.