Current Students and Staff

Photo of Dr. Kruger
Greg Kruger
Associate Professor
Weed Science and Application Technology Specialist
(308) 696-6715

Dr. Kruger received his B.S. degree in Agribusiness and Applied Economics with a minor in Crop Science from Ohio State University in 2004 and his M.S. and Ph.D. in 2006 and 2010 from Purdue University in Plant Pathology and Weed Science, respectively. Dr. Kruger joined the faculty at the University of Nebraska-Lincoln in January 2010 as a Cropping Systems Specialist focusing on issues related to corn, soybean and wheat production. He has developed the “Ground Spray” app, a droplet size calculator for pesticide applicators, and has been integral in Herbicide-Resistance Management Field Days and other resistance management Extension efforts in Nebraska.  In 2014, Dr. Kruger changed positions to Weed Science and Pesticide Application Technology Specialist at the University of Nebraska-Lincoln. The position responsibilities are 50% research and 50% Extension. Dr. Kruger’s research and Extension efforts focus heavily on understanding pesticide applications and making recommendations on maximizing pesticide application and mitigating off-target movement. Additionally, the program has a strong emphasis on managing kochia, horseweed, waterhemp and Palmer amaranth problems in the state. Dr. Kruger has built the Pesticide Application Technology laboratory which host two wind tunnels for better understanding nozzle by pressure by spray solution interactions on droplet size. Additionally, the program is striving to marry the engineering of droplet size to the biology of drift and efficacy. This work has led Dr. Kruger to helping consult with EPA on the release of the DRT program and has helped to foster global collaboration in the area of pesticide applications. Dr. Kruger has authored or coauthored 28 refereed manuscripts since joining the University of Nebraska-Lincoln in 2010. Additionally, he has trained M.S. and Ph.D. students in addition to 15 international interns from Brazil, France, India and Serbia. Dr. Kruger has been an author or coauthor on over 100 professional meeting abstracts and has given invited presentations on pesticide applications or resistance in over 12 states in addition to Australia, Brazil, New Zealand and Argentina.

Dr. Kruger has been an active member of the NCWSS since 2006. He has organized a Statistic Symposium, actively participated and coached teams at the NCWSS annual weed contest, and is the incoming Proceedings Editor on the board. Dr. Kruger has served on the NCWSS Finance, Steering and Public Policy Committee, served as a poster judge at the annual meetings and has served on the Local Arrangements Committee. He has been active in WSSA, ASTM, and ASA. Dr. Kruger has been awarded the NCWSS Young Scientist award, UNL:IANR Young Researcher Award and the Omtvedt Innovation Award for the development of the wind tunnels and associated research on pesticide application technology.

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Tommy Butts

Ph.D. Student, Agronomy, Weed Science
Anticipated Graduation: Spring 2019
(608) 214-4215

 I grew up outside of a small town in south central Wisconsin where agriculture became a part of my life at a very early age. I worked on small dairy farms, showed dairy cattle at the county and state fairs, and became active in 4-H and the National FFA Organization where I had the opportunity to serve as a Wisconsin State FFA Officer in 2008. These experiences led me to earn my B.S. in Agricultural Business with a minor in Crop and Soil Science from the University of Wisconsin-Platteville in 2012.  I then attended the University of Wisconsin-Madison, where I graduated with my M.S. in Agronomy, Weed Science in 2015.  I decided to continue my education at the University of Nebraska-Lincoln pursuing a Ph.D. in Agronomy, Weed Science where I will be studying pulse-width modulation spray application systems, as well as assisting with other research in the PAT lab.

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Jesaelen Gizotti de Moraes
Anticipated graduation date: May 2018
M.S. Agronomy, Weed Science

I grew up in Brazil where I received a B.S degree in Agronomy from University of Sao Paulo State (2015). As an undergraduate student, I worked two years in research projects related to Soil Fertility and Plant Nutrition. After that, I had the opportunity to do an internship at the University of Nebraska-Lincoln's West Central Research and Extension Center, I worked with corn and soybean production practices, weed seed collection, crop harvest, field studies and carried out a spray trial in the Pesticide Application Technology Lab. With this experience I developed a great interest in this area, thereby I continued working on application technology in Brazil through two different experiences. Firstly, I worked as a member of the research team under my professor Dr. Ulisses Antuniassi 's advisement. Secondly, I had my mandatory internship at Bayer CropScience, Application Technology, Paulínia Field Station.

Due all these experiences as an undergraduate student I decided to continue my education at the University of Nebraska-Lincoln pursuing a M.S. in Agronomy, Weed Science. Research about Application Technology and Herbicide Resistance are an innovative and promising area of study and it will be a single opportunity.

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André de Oliveira Rodrigues
Anticipated graduation date: May 2018
M.S. Agronomy, Weed Science

I originally come from Brazil, where I obtained my B.S degree in Agronomy at University of São Paulo State, Brazil (2016) and just started my M.S degree at UNL in Agronomy, weed science focusing in Application technology. I'll focus on projects with high speed applications and help others in the PAT Lab too. I've been here before as an intern in 2013 and it was such a good experience, that it made me want to come back for a longer period of time now. The main part of the PAT Lab are the people you work with, that was one of my reasons to come back. I hope to became a better person and a better student during this period of my life.

Photo of Strahinja
Strahinja Stepanovic

Ph.D. student, agronomy - crop science
Cropping systems Extension Educator in Perkins, Chase and Dundy Counties
Expected graduation May 2018
(402) 318-1124

I originally come from Serbia, where I received B.S. degree in agronomy from University of Belgrade. Upon my graduation in 2011, I joined UNL to pursue M.S. degree in weed science researching flame-weeding in row crops. Being M.S. student, I developed passion for research and after graduation (2013) I decided to broaden my perspectives by pursuing Ph.D. in cropping systems and working closely with farmers as UNL Extension Educator. My primary research interests are: (1) developing and calibrating simulation models to accurately represent the production potential of modern corn and soybean hybrids in similar ecoregions of the world, and (2) increase crop water-use efficiencies by utilizing optimal plant populations, modern hybrids, crop rotations, tillage practices and irrigation management strategies.