Weed Science and Application Technology Specialist
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.
Jesaelen Gizotti de Moraes
M.S. & Ph.D. Agronomy, Weed Science
I originally come from Brazil where I received a B.S. degree in Agronomy from Sao Paulo State University. As an undergraduate student, I had the opportunity to conduct research under the guidance of some of the best soil, plant nutrition, and application technology scientists in the country. I developed passion for Application Technology and Weed Science after having an internship opportunity during six months at the University of Nebraska-Lincoln under Dr. Greg Kruger’s advisement. With the great interest in this area, I continued working on application technology in Brazil through two different experiences: member of the research team under Dr. Ulisses Antuniassi’s advisement and a professional internship program with Bayer CropScience. Upon my graduation in 2015, I joined UNL again to pursue M.S. degree in Weed Science. My research efforts centered on the role spray nozzle and adjuvant technologies play during applications of glyphosate and PPO-inhibiting herbicides used to manage difficult to control weed species as well as the broader role that agricultural adjuvants play in the physical properties of agrochemical products and the resulting impact on spray formation, impaction and uptake. I started my Ph.D. at UNL last fall (2018) and my research will be focused on understanding droplet fate in Dicamba applications.
M.S. Agronomy, Weed Science
Contact: (402) 937-5528
Born and raised in Sevojno, the small town placed in the West part of Serbia. After my high school and my wish to know more about agronomical problems that farmers in Serbia are facing and to provide them with the potential solution for issues I decided to go more toward Agronomy. Following that I moved to Belgrade where I started my academic carrier at The University of Belgrade – Faculty of Agriculture from where I graduated with my B.S. and M.S degree in 2016 and 2017, respectively. Both programs that I pursued were with focus on the plant protection, with minor in weed science, module also known as Phytomedicine. Furthermore, during my Basic academic studies, I got an opportunity to visit Nebraska and to work on an internship during 2015 with Dr. Kruger. Upon completed internship, I got an opportunity to come back again to Nebraska to pursue an M.S. degree in weed science with focuses also in the pesticide application technology. Considering the importance of the pesticide application I saw this as a good opportunity to learn and improve understanding of various things related to this part. My primary research interest here is to better understand the effect of sub-lethal doses of a new formulation of dicamba achieved through simulated tank contamination when applied with different postemergence herbicide program on non-dicamba-tolerant soybean variety. I hope that studies that I am working on will provide results that will help to understand current issues that the American farmers are facing.
M.S. Agronomy, Weed Science
I am originally from a very small farming community in Missouri. Growing up, I lived in a ranch house, however, my family did not farm. I found my true passion for agriculture when I reached my freshmen year of high school and joined the local FFA chapter. While in high school, I was in FFA all four years and by my senior year I was our area 1 sentinel along with our chapter vice president. With my found passion for agriculture, I decided to attend The University of Missouri to study plant science with an emphasis in crop management. I did several internships while at the university including working for Monsanto at a production site in Iowa and GROWMARK at one of their sites in Missouri. My final summer in college, I had the privilege to work under Dr. Kruger as an intern looking at pre-emergent herbicides tank mixed with post-emergent herbicides. With a passion for weed science and herbicide technology I knew I wanted to continue my education. I am currently now a student at The University of Nebraska-Lincoln pursuing a M.S in Agronomy, Weed Science where I will be researching the efficacy of glufosinate spray treatments with different adjuvants and post-emergent herbicides in tank solutions.
Estefania Gomiero Polli
M.S. Agronomy, Weed Science
I am originally from Brazil, where I received my B.S in Agronomy from University of Sao Paulo in 2017. As an undergraduate student, I was a member of many university extension groups related to agribusiness, livestock, horticulture and weed science. In 2016, I did an internship at the Pesticide Application Technology Laboratory (PAT Lab) where I worked with herbicide resistant horseweed. After I got my B.S, I worked as a market analyst focused on corn, soybean and sugarcane crops in a consultancy for 6 months. However, I missed work with weeds and pesticide application technology research, so I came back as a master’s student at UNL in 2018. My master’s projects are mostly about interactions between adjuvants and different herbicides and its effects on commercial crops and weeds.
Cropping systems Extension Educator in Perkins, Chase and Dundy Counties
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. I am now the Cropping Systems Extension Educator in SW NE.
Bruno Canella Vieira
Natural from Brazil. Received a B.S degree in agronomy from University of São Paulo State, Brazil (2011). Developed a 5 month internship period in Weed Sciences at University of Nebraska Lincoln (2011). Worked at Brazilian Syngenta R&D department, developing research focused on fungi and insect resistance to pesticides (2012-2014). Pursuing M.S and PhD degrees in Agronomy at University of Nebraska Lincoln. Research is focused on management of herbicide-resistant weeds and herbicide application technology (2014-currently).
Guilherme Sousa Alves
Originally from Brazil and proudly born and raised in a farm. Agriculture has been a part of my life since I was 4 years old, especially soybeans, corn, rice, and dairy cattle. I have been working with Pesticide Application Technology since 2007 when I was at the first year of my B.S. in Agronomy, earned in 2011 at Federal University of Uberlandia. In 2014, I earned a Master’s Degree and then started a Ph.D. in Crop Science at the same University, both focused on Drift Reduction Technology. Currently, I am a Postdoctoral Research Associate at University of Nebraska-Lincoln joining Dr. Kruger’s Team since May/2018.
Gabrielle de Castro Macedo
I am from Brazil where I received my B.S. degree in Agronomy from Sao Paulo State University (2012) where I worked mainly with Entomology and Crop Science. Had 7-months internship at Dow AgroSciences (now Corteva Agrisciences) between 2011 and 2012 working with Product Development – Seeds, Traits and Oils. Worked at Gravena (now SGS Gravena) and DuPont (now Corteva Agrisciences) between 2012 and 2013. Obtained my M.S. degree in Plant Protection from Sao Paulo State University (2015) working with Weed Science. During the PhD I worked with Weed Science and also was a Professor at Eduvale College of Avare. My PhD degree in Agriculture was obtained also from Sao Paulo State University (2018) with 6-months sandwich at UNL/PAT Lab. Currently I am a Postdoctoral Research Associate at UNL/PAT Lab.
Role is to manage field trials relating to crop water use, crop rotation, hybrid/variety evaluations, fertilizer, rainfed and irrigated cropping systems.
Received a BS degree from UNL in 1995 and started working for Bob Klein at West Central in early 1996, mainly focused on crop variety testing (irrigated and rainfed corn, soybeans, winter wheat, sunflowers, grain sorghum, dry edible beans) throughout southwest Nebraska. The program expanded in the areas of herbicide and adjuvant efficacy, spray nozzle evaluation for drift management and herbicide efficacy and spray droplet analysis with a laser diffraction system. With continued growth in both areas (crop field trials and spray application) in 2012 I became more focused on field trials, predominantly at North Platte and Brule locations.
I work for Dr. Greg Kruger and help organize the labs daily activities and projects. I assist with data entry, data collection, report writing and field trials. I also provide support to the technicians, students and international interns. I was born and raised in Nebraska, received my bachelor’s degree in Biology from the University of Nebraska-Kearney and have three delightful children that keep life interesting. My husband’s career brought us to North Platte and I am thankful everyday it did, so I can be a part of this remarkable research group.
I am the greenhouse manager for the Pesticide Application Technology Laboratory. My main role is to conduct research on various weed and crop species grown in the greenhouse utilizing different application parameters and herbicides. I’m responsible for the daily upkeep of the three greenhouse facilities. I assist students with their research projects and also participate in wind tunnel studies. I grew up in North Platte and earned a BS of Biology from the University of Nebraska-Kearney in 2013, and a BS in Clinical Laboratory Science from the University of Nebraska Medical Center in 2015. I began working for Dr. Greg Kruger in 2011 as summer help, and continued this role until transitioning to greenhouse manager in 2016.
I originally come from Serbia where I received B.S. degree in agronomy from University of Belgrade (2018). Before I graduated, I had the opportunity to do an internship at WCREC in North Platte, Nebraska. This opportunity opened the door for my further professional and educational development. After receiving B.S. degree I came back to work as a wind tunnel technician. My main focus is to better understand impact on droplet size as well as droplet size’s impact on pesticide application. My next goal is to continue upgrading the knowledge I have and seek for master’s degree.