Weed Management Update 2003: Issues, Changes and Considerations

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2003-12-04
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Owen, Micheal
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Proceedings of the Integrated Crop Management Conference
Iowa State University Conferences and Symposia

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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Major changes in weed management during the last 5 years have resulted in a number of new considerations and emerging issues for the Midwest. Notably, the change in herbicidal weed control that emphasized the acetolactate synthase (ALS) inhibitor herbicides to weed control based primarily on genetically modified (GM) crops and glyphosate resulted in a number of considerations. These issues focus on the cost of weed control, the simplicity of glyphosate based systems, changes in weed populations, herbicide resistance in weed populations, and the implications of highly focused selection pressures on agroecosystems.

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