Tamra Jackson-Ziems - Extension Plant Pathologist

Tamra Jackson-Ziems

faculty
Work Plant Sciences Hall (PLSH) 406
Lincoln NE 68583-0722
US
Work 402-472-2559 On campus, dial 2-2559
Tamra Jackson-Ziems, Extension Specialist and Professor, joined the faculty of the Department of Plant Pathology at the University of Nebraska-Lincoln (UNL) in April 2005 after completing her graduate degrees at the University of Arkansas and University of Illinois-Urbana. Her appointment is split between extension, research, and teaching 80/10/10%, respectively, with statewide responsibility for diseases of corn and grain sorghum. Her extension activities encompass educating clientele about disease identification, prevention, and management. And her research projects encompass a broad range of topics, including bacterial leaf streak, Goss’s bacterial wilt and blight, use of fungicides for disease control, and plant parasitic nematodes of corn. During her time at UNL, she has delivered more than 180 invited presentations in 16 states and is the 2016 recipient of both the Nebraska Cooperative Extension Association’s Award for Outstanding Creative Programming (for an individual) and the Nebraska Ag Business Association’s Education and Research Person of 2016 Award.

icon-academic-capEducation

  • Ph D, University of Illinois-Urbana, 2005
  • MS, University of Arkansas, 2000
  • BS, University of Central Arkansas, 1996

icon-bookmark-starAwards & Honors

  • Outstanding Education and Research Person of 2016, Nebraska Ag Business Association, 2016
  • Outstanding Award For Creative Programming (Individual) for "Bacterial Leaf Streak of Corn", Nebraska Cooperative Extension Association, 2016
  • Dinsdale Family Faculty Award, IANR, 2009
  • Distinguished New Extension Employee Award , UNL Extension, 2009

Faculty Bio

Twitter: @tjcksn
YouTube: Corn Disease Videos at UNL CropWatch
Website: Corn Disease section of CropWatch Plant Disease Management

Common smut on corn

Disease Development Associated with Early-season Hail Damage in Corn

July 7, 2022
Several diseases resulting from hail and wind injury have been verified in corn across the state and are likely to worsen under current environmental conditions.

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Frogeye leaf spot

Fungicide Resistance and Management of Frogeye Leaf Spot of Soybean in Nebraska

June 16, 2022
Frogeye leaf spot — which will likely begin appearing in Nebraska soybeans within the next few weeks — can cause significant yield loss, but there are effective management options available.

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Corn seedling
Figure 1. Seedling with post-emergence damping off (left) next to a healthy seedling. (Photo by Tamra Jackson-Ziems)

Conditions Favor Seedling Diseases in Early Planted Corn and Soybeans

May 25, 2022
As heavy rains and cool soils continue during early plant development, be sure to monitor seedling emergence and stand establishment to detect diseases as early as possible.

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SDS on soybeans

Seed Selection Can Help Manage Diseases Next Year

October 27, 2021
Reviewing diseases that have caused issues in previous years can help you select more disease-resistant corn hybrids and soybean varieties for the upcoming growing season.

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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.

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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.

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Frogeye leaf spot

Corn and Soybean Disease Update: Southern Rust, Frogeye Leaf Spot, and Phytophthora Root and Stem Rot

July 21, 2021
Following identification of southern rust, Phytophthora root and stem rot, and frogeye leaf spot in areas throughout the state, producers are encouraged to scout and be prepared to apply the appropriate fungicide treatments.

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Soybean root with SCN infection

Managing Soybean Cyst Nematode Starts Now

March 17, 2021
Preparing for the annual battle against soybean cyst nematode? Extension experts weigh in on your strategy options and offer tips on how to start winning the war.

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