Research and Innovation

At the University of Nebraska-Lincoln, research and innovation drive discoveries, scholarship and creative activity that expand basic knowledge and solve real-world problems. Our emergent research outputs help stimulate agro-economic expansion for Nebraska and addresses major challenges facing our state, our nation and the world. Please follow links provided to view selected research and discussion concerning weed science and application technology.

Research Updates

2020 North Central Weed Science Society Winners

The NCWSS held its annual meeting the week of November 30th this year virtually. Many of our students received top honors in the poster, paper and video sections. Click on each presentation below to view the outstanding research. 

Posters

- Leandro H. S. Guimaraes - 1st Place Undergraduate Poster - Section: Weed Biology, Ecology, Management

- Joao V. de Oliveira- 2nd Place Graduate Poster - Section: Equipment and Application Methods

 - Jesaelen G. Moraes- 2nd Place Graduate Poster - Section: Agronomic Crops II - Soybeans

Jesaelen Poster


Papers

- Estefania G. Polli - 1st Place Graduate Oral Presentation - Section: Equipment and Application Methods

- Milos Zaric - 1st Place Graduate Oral Presentation - Section: Agronomic and Specialty Crops

- Jesaelen G. Moraes - 2nd Place Graduate Oral Presentation - Section: Equipment and Application Methods

Jesaelen presentation


Video

-Barbara Vukoja - 1st Place Video Contest - Category: Project Proposal

2020 Weed Science Lab Research Summary

We invite you to click the link below to learn about a portion of the research completed at the PAT Lab in 2020

2020 Weed Science Research Summary 

Coverage Matters-Making Good Applications

With considerable changes in spray technology, we’re here to help you sort through the options to understand what makes a good application. From technologies like pulse width modulation, selecting the appropriate nozzles, to picking the best adjuvants, Extension experts can help make sense of it all – and ensure you get the most effective and economical pest control. Of course the bottom line also matters. Understanding the cost of a good application, or the true cost of a bad one, is important. Weighing costs versus potential can help growers make better management decisions.

Chris Proctor, UNL Associate Extension Educator, speaks with Greg Kruger at the 2020 Husker Harvest Days virtural event.

This interview and other videos can be found below by clicking on the Coverage Matters icon.

2019 Weed Science Lab Research Summary

We invite you to click the link below to learn about a portion of the research completed at the PAT Lab in 2019

Weed Control and Spray Drift

Kruger Lab infront of sprayer


2019 North Central Weed Science Society Poster Award Winners

The NCWSS is a professional group of those interested in weed science from many perspectives. Many members are affiliated with universities or the crop protection industry; others are crop consultants, state or federal agency or private research personnel, extension educators and others. The NCWSS holds an annual meeting at which papers and posters are presented, including student paper and poster contests.  The 2019 meeting was held in Columbus, OH. Four students received honors for their posters which may be viewed below by clicking on the poster to view as a pdf file.

Jesaelen G. Moraes-2nd place graduate Herbicide Physiology poster

Ana Clara Gomes- 2nd place undergraduate Weed Biology, Ecology Management poster

Daniel Doretto-2nd place undergraduate Agronomic Crops I & II poster

Arthur Franco -2nd place Weed Biology, Ecology Management undergraduate poster

POSTERS

2019 NCWSS Student Video Contest


Weed science students representing the PAT Lab earned some top honors at the 2019 North Central Weed Science Society Meeting in Columbus, OH. 

Jesaelen Gizotti de Moraes, a doctoral student, received First-place in the graduate student research video contest.  Her video describes the impact of DRA's in dicamba tank-mixtures on pattern distribution. Click on photo below to view full video.

Video link to DRA Video

Milos Zaric, a master student, received first-place for his Extension/education graduate student video titled “The Weed Zapper. Additional Tool for Integrated Weed Management.” The video is about using electric current as another approach to weed management. Click on photo below to view full video.

The Weed Zapper Video Link

5.31.19

Response of Multiple Plant Species to Sub-Labeled Doses of Herbicides

2018 ASTM pdf link

*This was presented at the 39th Symposium on Pesticide Formulation and Delivery Systems: Innovative Formulation, Application and Adjuvant Technologies for Agriculture.
Click on photo above to view a pdf of the presentation.

2019 University of Nebraska-Lincoln Undergraduate Research Fair

University of Nebraska College of Agricultural Sciences and Natural Resources student, Rodger Farr, recently won the poster presentation at the 2019 Spring Undergraduate Research Fair held on April 15th.  The Spring Research Fair focuses on students, showcasing research and creative accomplishments by UNL undergraduate and graduate students.  His poster is titled, Evaluation of Tank-Mixture Interactions Between Gyphosate, Glufosinate, and Dicamba. Click on photo below to view the poster as a pdf.

Rodger Farr poster



2018 NCWSS Student Video Contest


Weed science students representing the PAT Lab earned some top honors at the 2018 North Central Weed Science Society Meeting in Milwaukee, WI. 

Jesaelen Gizotti de Moraes, a doctoral student, received second-place in the graduate student research video contest.  Her video describes the OCA 15EC, a professional contact angle measurement and drop shape analysis device. This piece of equipment allows us to perform analysis of contact angle and surface tension of different solutions. Click on photo below to view full video.

Video link to OCA 15EC

Estefania Gomiero Polli, a master student, received first-place for her Extension/education graduate student video titled “Spray Drift of Pesticides.” The video is about spray drift or the movement of pesticide away from the target area to an unintended site. This event can cause problems such as damage to susceptible off-target sites, reduction in the effectiveness of the pesticide, waste of pesticide and money, and environmental contamination. Putting effort to minimize drift is imperative. Strategies used to reduce drift in field applications include checking pesticide label information, sprayer and weather conditions.  Click on photo below to view full video.

Spray Drift of Pesticide Video Link

7.14.17  NEBRASKA DEPTARTMENT OF AGRICULTIRE UPDATE: The Nebraska Department of Agriculture is trying to encourage commercial specialty crop growers and certified/transitioning organic growers, as well as beekeepers who sell honey, to register for DriftWatch/BeeCheck, a communication tool for reducing instances of pesticide drift.

Drift watch photo

2017 Global Herbicide Resistance Challenge Conference
Bruno Poster
Distribution of glyphosate-resistant Palmer amaranth (Amaranthus palmeri) and common waterhemp (Amaranthus rudis) in Nebraska. Click on poster to view as a pdf.
2017 CPDA Presentation
Drift Reduction Technologies, CPDA, May 3, 2017
2016 North Central Weed Science Society Posters

The NCWSS is a professional group of those interested in weed science from many perspectives. Many members are affiliated with universities or the crop protection industry; others are crop consultants, state or federal agency or private research personnel, extension educators and others. The NCWSS holds an Annual meeting at which papers and posters are presented, including student paper and poster contests. Click on the posters below to view as a pdf file.

POSTERS

2016 UNL Cropwatch
Control Early Stages of Marestail and Kochia                                                                  March 18, 2016
2015 UNL Cropwatch
2015 Forecasted Corn Yields Based on August 12 Hybrid Maize Simulations August 14, 2015
2015 Forecasted Corn Yields Based on July 29 Hybrid Maize Model Simulations July 30, 2015
2015 Forecasted Corn Yields Based on Hybrid Maize Model Simulations as of July 15 July 17, 2015
The Corn Yield Forecasting Center: Approach and Interpretation of Results June 26, 2015
Why Residual Herbicides are Important Tools in Battling Hard-to-Control Weeds May 1, 2015
Glyphosate-Resistant Palmer Amaranth Confirmed in Southwest Nebraska May 1, 2015



NOZZLE VIDEOS

Greenleaf

Hypro

Ultra Lo-Drift 12003
nozzle spray pattern

Lechler

TeeJet