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.
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
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.
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.
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.
Knowing the risk factors for stalk rot can help you evaluate those fields first and prioritize your harvest schedule accordingly. Submitting plant samples and determining which stalk rot is present can help you better prevent or manage it in future years.
Southern rust has been confirmed in corn in three eastern Nebraska counties this week. Corn fields should be scouted soon and frequently in the coming weeks for this and other diseases in case treatment is necessary.