By Scout Nelson
The latest episode of N Field Observations features Nebraska Extension Weed Management Specialist Amit Jhala discussing a 2026 field demonstration focused on Palmer amaranth control in corn. The project evaluated multiple herbicide programs to help growers identify effective weed management strategies.
Palmer amaranth remains one of the most troublesome weeds in corn production due to its rapid growth and strong competition for water, nutrients, and sunlight. Effective management is critical for protecting crop yields and farm profitability.
The demonstration compared several herbicide programs that included both preemergence and postemergence applications. Researchers evaluated how different herbicide combinations performed under field conditions and their effectiveness throughout the growing season.
Results highlighted the benefits of using multiple herbicide modes of action within an integrated weed management program. Combining pre- and postemergence treatments can improve weed control and help reduce the risk of herbicide resistance.
The episode also outlines key considerations for growers when selecting herbicide programs, including herbicide chemistry, performance, application timing, and overall cost. These factors can help producers choose management strategies that balance effectiveness and economic returns.
According to Jhala, field demonstrations provide valuable opportunities for growers to compare weed control options under real-world conditions. The research offers insights into herbicide program performance and supports informed decision-making for long-term weed management.
Nebraska Extension continues to use field-based research to provide practical recommendations for managing Palmer amaranth and other challenging weeds. The episode offers corn growers guidance on selecting effective, cost-conscious weed control programs while maintaining crop productivity and minimizing resistance concerns.
Photo Credit: gettyimages-oticki
Categories: Nebraska, Crops, Corn