Glyphosate-Resistant Waterhemp: Lessons Learned from the Devastation Resistant Palmer Amaranth has had on Southern Agriculture
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The Iowa State University Integrated Crop Management Conference is Iowa's premier crop production education event. No other program in Iowa brings together the diverse range of topics, slate of expert presenters and results of the latest University research.
The ICM Conference offers workshops focusing on the latest in crop production technology. Experts from Iowa and surrounding states will provide research updates and results in soil fertility, soil and water management, crop production and pest management.
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Abstract
Palmer amaranth has become increasingly prevalent in crop fields in the southern U.S. over the past 8 to 10 years. Glyphosate resistance in Palmer amaranth was first confirmed in Georgia in 2004. Now, glyphosate-resistant Palmer amaranth is widespread in Georgia, Arkansas, Tennessee, North Carolina, South Carolina, Tennessee, and Mississippi. The resistant biotype is causing substantial yield loss, reduction in harvest efficiency, and complete abandonment of some fields. The focus of this presentation will be on glyphosate-resistant Palmer amaranth, a close relative of waterhemp, including: