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

Figure 1. The degree of damage from standing water in this field will depend on several factors and likely will lead to direct yield losses or indirect losses from increased disease pressure.
Figure 1. The degree of damage from standing water in this field will depend on several factors and likely will lead to direct yield losses or indirect losses from increased disease pressure.

Response of Germinating and Early Season Soybeans to Flooding

May 30, 2019
Injury to germinating and seedling soybean from flooding depends on several factors, including soybean growth stage, flood duration, and air and soil temperature and varies the varieties. Pythium and Phytophthora are two diseases to scout for after flooding.

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Corn seedling exhibiting disease symptoms

New CW Podcast on Corn Seedling Diseases

May 8, 2019
Michael Sindelar talks with Extension Plant Pathologist Tamra Jackson-Ziems about common corn seedling diseases, what to watch for in the field, and how to collect and submit quality samples for diagnosis.

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Soybean root lesion

New CW Podcast on Soybean Seedling Diseases

April 26, 2019
Tune in to this CropWatch podcast on seed and early season issues with soybean diseases. Is your seed selection or treatment well matched with historical problems in the field? What should you be watching for at emergence and what are your management options.

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Soybeans with purple seed stain (left) and soybeans showing signs of seed decay due to Phomopsis disease complex. (Photo by Jenny Rees)
Figure 1. Soybeans with purple seed stain (left) and soybeans showing signs of seed decay due to Phomopsis disease complex. (Photo by Jenny Rees)

Soybean Seed Germination Concerns

February 13, 2019
Average germination rates of new crop soybean being tested by the Nebraska Crop Improvement Association are lower than in recent years. Growers are urged to check the germination rate for their soybean seed and adjust planting rate and use of fungicide treatments accordingly.

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Goss's Wilt of corn

Nebraska Plant Pathology: A Culture of New Diseases

January 23, 2019
Though relatively small, UNL's Department of Plant Pathology has played a significant role in the discovery of many economically important plant diseases, including most recently, a new fungal pathogen causing Fusarium head blight of wheat. This article is from the 2019 Nebraska Crop Management Conference Proceedings.

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Soybean Disease Update

January 11, 2019

In 2018 an array of weather conditions led to the development of several soybean diseases. Excessive early season moisture and heavy rains during the season resulted in many fields being impacted by Phytophthora root and stem rot. Frogeye leaf spot developed early in some areas and continues to build in the state with more fields being affected.

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Map of bacterial leaf streak distribution in Nebraska

Corn Disease Update

January 9, 2019

The 2018 crop season got off to a slow start with cold, wet conditions delaying planting in much of the state. Some seedling diseases developed in early planted corn, but with ample heat units the corn caught up quickly and most of the crop finished ahead of schedule. High relative humidity and rainfall drove the development of several leaf diseases mid-season.

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What’s New in Plant Pathology

January 9, 2019
This article, from the Proceedings of the 2019 Crop Production Clinics, addresses new and updated product labels for disease management, a report from the Plant and Pest Diagnostic Clinic, changes in the Department of Plant Pathology, and the initial US finding of Fusarium boothii on wheat in Nebraska.

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