Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic
Proper seed selection is the first line of defense for disease management of Phytophthora root rot and anthracnose, which can cause significant losses in a short amount of time.
April 6, 2022
As you think about selecting alfalfa varieties to plant this year, be sure to consider varieties available with greater resistance to diseases like anthracnose and Phytophthora root rot.
More severe tar spot pictured in western Iowa in October 2019.
October 21, 2021
Tar spot was confirmed in seven eastern Nebraska counties during recent weeks, and there are likely additional corn fields in other counties where the disease can be found.
Figure 1. SCN does not often cause visible symptoms in soybeans. When population densities of SCN are high, you may notice stunting and yellowing (pictured here) in patches in some soybean fields.
September 28, 2021
It is a busy time of year as harvest begins across the state, but this is the perfect time to collect soil samples for soybean cyst nematode while waiting in the field in a grain cart or truck as the combine fills.
August 26, 2021
Soybeans across Nebraska are currently presenting symptoms common with Sudden Death Syndrome and Brown Stem Rot; however, recent samples indicate many of the affected fields are experiencing phytotoxicity due to the application of a triazole (DMI) fungicide.
August 26, 2021
As you continue to scout fields late in the season, it is important to collect the right kind of sample to ensure proper diagnosis.
Photo 1. Rhizoctonia root rot of soybeans. Lesions near the soil line tend to be sunken and dry.
July 1, 2021
Several diseases were reported in samples submitted to the UNL Plant and Pest Diagnostic Clinic from June 15 through June 30, 2021.
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.
June 4, 2021
Figure 2. Leaf rust in a research plot at Havelock Farm in Lincoln, Lancaster County, on June 1.
Figure 1. A flooded section of a grower’s wheat field in excellent condition in Deuel County on May 25.
May 27, 2021
Stripe rust and leaf rust confirmed in new counties; Fusarium head blight risk reported as moderate to high in southern Nebraska.