Kyle Broderick - Extension Educator and Coordinator of the UNL Plant and Pest Diagnostic Clinic

Loren Giesler

faculty
Work Plant Sciences Hall (PLSH) 448
Lincoln NE 68583-0722
US
Work 402-472-2559 On campus, dial 2-2559
Stunted soybean plant

Phytophthora Root and Stem Rot is Appearing in Nebraska Soybean Fields

July 21, 2022
Disease development will be most rapid in low areas of the field that are poorly drained or where compacted soils are present, but can occur in well-drained fields during periods of excessive moisture.

Read more

Alfalfa field
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.

Alfalfa Seed Selection to Help Manage Diseases

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.

Read more

Tar spot on corn
More severe tar spot pictured in western Iowa in October 2019.

Tar Spot Disease of Corn Confirmed in Several Nebraska Counties

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.

Read more

Example of stunting and yellowing in soybeans
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.

Sample for Soybean Cyst Nematode This Fall

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.

Read more

SDS foliar symptoms

Triazole Phytotoxicity in Soybeans

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.

Read more

Crown rot in stem

Crown and Stalk Rot Sampling Tips

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.

Read more

Rhizoctonia root rot of soybeans
Photo 1. Rhizoctonia root rot of soybeans. Lesions near the soil line tend to be sunken and dry.

Disease Reports from the UNL Diagnostic Clinic — June 30

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.

Read more

Stripe rust in a field
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.

Wheat Disease Update: Stripe Rust, Leaf Rust, and Fusarium Head Blight

June 4, 2021
This week high levels of stripe rust and leaf rust were observed in wheat plots at the Eastern Nebraska Research and Extension Center (ENREC) near Mead, Sauders County, and at Havelock Farm in Lincoln, Lancaster County.

Read more