AMES, Iowa — A team of weed scientists, economists and sociologists led by Mike Owen, an Iowa State University agronomy professor, is working to develop effective approaches to address an increase in herbicide resistant weeds.
“The spread of herbicide resistant weeds is a growing problem in many parts of the U.S. While herbicide resistance has existed for decades, the number of weed species with resistance to glyphosate and other herbicides has risen dramatically in recent years,” Owen said. “As a result, more time and money are being spent on weed control, and farmers are faced with the likelihood of lower yields and profits unless changes in their weed management are implemented. Further, some conservation gains made with reduced or no tillage systems may be reversed.”
The team seeks to better understand the causes and consequences of herbicide resistant weeds, and the strategies farmers use to cope with them. The project, which is supported by a U.S. Department of Agriculture Agriculture and Food Research Initiative grant, also addresses barriers farmers face in adopting more diverse strategies for herbicide-resistant weed management.
Beginning this month, the team will conduct a survey of farmers who manage a wide range of corn, soybean, cotton and sugar beet enterprises. As the people on the front lines of herbicide resistance, farmers have a unique experience and understanding of the problem and the opportunities for cost-effective approaches, which makes the information they can provide so critical for effectively responding to the herbicide resistant weed problem.