June 23, 2025

Flame Weeding Workshop is Sept. 10

tractor in green pasture
Courtesy Photo

Courtesy Photo
The Nebraska Flame Weeding Workshop will be held on Wednesday, Sept. 10 from 9 a.m. to 5 p.m. at Eastern Nebraska Research and Extension Center near Itaca.

The Nebraska Flame Weeding Workshop will be held on Wednesday, Sept. 10 from 9 a.m. to 5 p.m. at Eastern Nebraska Research and Extension Center near Itaca. 

Stevan Knezevic, professor of agronomy and horticulture specializing in weed science, and George Gogos, professor of mechanical engineering, and their teams will present results from more than 15 years of research. This work is also documented in over 20 scientific publications, 100+ abstracts presented at many regional, national and international meetings, and a patent for flaming equipment.

Participants will learn how to properly flame all major Midwestern weeds in eight agronomic crops – field corn, sweet corn, popcorn, soybean, sorghum, alfalfa, sunflower and wheat.

Propane fueled flame weeding is an acceptable method for weed and pest control in organic farming. It is also gaining interest among conventional producers due to the increase in weed resistance and costs of GMO crop seeds.

Propane doses for weed control and crop tolerance data will be presented. Four row flamers with patented hoods for broadcast and banded flaming will be demonstrated along with flaming treatments applied at several crop growth stages in corn and soybean.

Several local organic farmers will share their experience with flame weeding on their farms.

Workshop is limited to 40 people. Cost is $150 which includes the Flame Weeding Manual and other workshop materials. Lunch is also provided.

Program agenda:

  • 9:30 – 10 am: Registration
  • 10 – 10:10 am: Introductions and overview of the program (Knezevic)
  • 10:10 – 10:30 am: Basics of Flame Weeding and Equipment (Knezevic)
  • 10:30 – 11 am: Development of flaming hoods and torches (Gogos/ Chris Bruening, Ph.D.)
  • 11am – 12:30 pm: Field Demonstration of Flame Weeding Equipment and Procedures (Gogos and Bruening)
  • 12:30 – 1 pm: Lunch (Provided)
  • 1 – 1:30 pm: Propane dose response for weed control (Knezevic)
  • 1:30 – 2 pm: Crop tolerance to single and multiple flaming (Knezevic)
  • 2 – 2:30 pm: Time of day impacts flame weeding (Knezevic)
  • 2:30 – 3 pm: Flame weeding and cultivation in corn and soybean (Knezevic)
  • 3– 3:30 pm: Experience from local producers (Randy Fendrich and Larry Stanislav)
  • 4 – 5 pm: Revisit fields, Questions and Discussion
  • 5 pm – Adjourn

Please register at https://go.unl.edu/flameweeding2025 by Wednesday, Sept. 3. Directions to the site, accommodation information, and a video about the university’s flame weeding research is available on the Flame Weeding Workshop page.

For more information contact Stevan Knezevic at 402-472-6498 or sknezevic2@unl.edu. For registration information contact Connie Hansen at 402-472-8747 or chansen1@unl.edu.