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 2-2559
Tamra Jackson-Ziems, Extension Specialist and Associate 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

Bacterial leaf streak and Goss's wilt
Figure 1. (left) Corn leaves with bacterial leaf streak may appear to have a yellow halo around lesions. (right) Recent wet conditions and wounding from hail or storms favor development of Goss's wilt, shown here. (Photos by Tamra Jackson-Ziems)

Conditions Right for Development of Corn Diseases June 7, 2018

Severe weather and wet conditions across much of Nebraska this week may favor increased development of diseases in corn, particularly bacterial leaf streak and Goss’s bacterial wilt and blight. For assistance in correctly identifying diseases, submit samples to the Plant & Pest Diagnostic Clinic.

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What’s New in Plant Pathology: Changes in the Plant & Pest Diagnostic Clinic January 8, 2018

New to the Plant and Pest Diagnostic Clinic is Kyle Broderick, who became coordinator after working as an extension technologist in a University of Nebraska soybean pathology lab for six years. An article from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics.

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Corn Disease Update January 8, 2018

A review of diseases to expect in Nebraska corn for 2018. An article in the 2018 Crop Production Clinic Proceedings.

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Fungicides are for Fungi January 8, 2018

Symptoms of bacterial diseases can be easily confused with those of fungal diseases in field crops. This article, from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics, reviews some of the common mistakes made in the major field crops and reviews research on the impact of fungicide use after hail events in corn and soybean.

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Corn root damage from root-lesion and other nematodes

Nebraska Corn Board Supports Free Corn Nematode Testing November 10, 2017

A new program to provide free soil analysis for corn nematodes is being made possible by the Nebraska Corn Board. Growers are invited to submit soil samples to a University of Nebraska-Lincoln lab from now through spring to be tested for the root-lesion nematode.

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Diplodia fungus on a corn ear

Ear Rot Diseases Developing in Some Nebraska Corn Fields September 29, 2017

Common ear rot diseases are beginning to develop in corn fields and growers are encouraged to scout fields prior to harvest to aid in management decisions. Harvest and storage conditions can impact whether grain molds will continue to worsen.

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Figure 1. Lodged corn due to stalk rot diseases. (Photo by Tamra Jackson-Ziems)

Stalk Rot Diseases in Nebraska Corn Fields September 22, 2017

Stalk rots can be found in corn across Nebraska. This story addresses the risk factors and how to scout for stalk rots, assess stalk strength, and determine extent of damage in a field. Fields with high levels of stalk rot should be given priority at harvest to reduce yield losses due to lodging.

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Bacterial leaf streak in corn
Figure 1. Bacterial leaf streak symptoms on corn are interveinal streaks that may appear tan, brown, or especially yellow when backlit by the sun.

Bacterial Leaf Streak of Corn August 25, 2017

Bacterial leaf streak was just confirmed in Nebraska in 2016, the first incidence in the US, but has now spread to 56 counties and is found in eight other states.Learn about factors contributing to its development and "host" plants, as well as management options.

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