By Scout Nelson
Research plays an important role in protecting crops from serious threats. One such challenge is Palmer amaranth, a fast-growing weed that spreads quickly and resists many herbicides. This “superweed” has become a major concern for sugar beet farmers due to its ability to cause heavy yield losses.
In western Nebraska, this weed was not a major problem until recent years. However, Nevin Lawrence, a scientist at the University of Nebraska–Lincoln, identified the risk early. His research and collaboration with the Western Sugar Cooperative helped prevent a large-scale outbreak.
Lawrence studied an herbicide called metamitron and created the only dataset on its effectiveness against Palmer amaranth. He determined the correct usage rate that could control the weed while remaining safe and affordable for farmers. His findings showed that the herbicide could protect crops by disrupting the weed’s growth process.
The research also helped the Environmental Protection Agency approve emergency use of the herbicide Goltix for several years, including 2026. This approval was important because it provided farmers with an effective tool when no other strong option was available.
Palmer amaranth can cause severe damage if left untreated. Reports show that yield losses can reach 30 percent or more, and in some cases even higher. In extreme situations, losses may exceed 70 percent. Lawrence’s work helped reduce these risks and protect farm income.
His strategy also included combining herbicides over time. The initial treatment controls the weed for several weeks, after which other products can be used effectively. This approach improves long-term weed management.
Experts have recognized the importance of his work. It has saved farmers millions of dollars and supported the stability of the sugar beet industry. The research is now being used in other regions, showing its wider impact.
Overall, this study highlights how timely scientific research can protect crops, support farmers, and strengthen agricultural systems.
Photo Credit: gettyimages-luiscarlosjimenez
Categories: Nebraska, Crops, Sugar Beets