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Introduction to the Symposium: History of Sulfonylurea Herbicide Use in Turfgrass Environments

Published online by Cambridge University Press:  20 January 2017

Prasanta C. Bhowmik*
Affiliation:
Department of Plant, Soil, and Insect Sciences, University of Massachusetts, Amherst, MA 01003-7245
*
Corresponding author's E-mail: pbhowmik@pssci.umass.edu

Abstract

Weed management is a common practice in golf courses, home lawns, and sod production systems. Sulfonylurea (SU) herbicides were initially introduced in the agricultural market in 1982; however, SUs were also evaluated for control of weeds and overseeded grasses. Later, SUs were evaluated for selective control of broadleaf weeds, sedges, and kyllinga species in cool- and warm-season turfgrasses. In the 1990s, chlorsulfuron and metsulfuron were registered for selective control of broadleaf weeds, such as wild garlic, spotted spurge, and difficult-to-control grasses, such as bahiagrass in turfgrass. Now, there are several SUs registered for specific weed management in both cool- and warm-season turfgrasses. The current status of SUs, along with potential benefits and drawbacks in using these herbicides for weed management practices, are discussed. The research findings, possible recommendations in relation to the safety of turfgrass (established and overseeding stands), environmental concerns (persistence and lateral movement), and management practices in cool- and warm-season turfgrasses are discussed, including the potential evolution of weed resistance.

El manejo de malezas es una práctica común en campos de golf, en jardines residenciales y en los sistemas de producción de césped. Los herbicidas sulfonylurea (SU) fueron inicialmente introducidos al mercado agrícola en 1982. Más tarde, los Sus fueron evaluados para el control selectivo de malezas de hoja ancha y ciperáceas incluyendo especies Kyllinga en céspedes de estaciones frías y cálidas. En los 1990's el chlorsulfuron y el metsulfuron fueron introducidos al mercado de los céspedes para el control selectivo de malezas de hoja ancha y gramíneas difíciles de controlar, incluyendo Allium vineale, Chamaesyce humistrata y Paspalum notatum. Desde entonces, varios nuevos herbicidas sulfonylurea fueron introducidos para propósitos específicos en el manejo de malezas en céspedes de estaciones frías y cálidas. La situación actual de los SUs, junto con los beneficios y desventajas potenciales del uso de estos herbicidas para las prácticas de manejo de malezas son discutidos en el presente trabajo. Así mismo se discuten los resultados de investigación, posibles recomendaciones en relación a la seguridad de los céspedes (ya sea establecidos o resembrados), preocupaciones ambientales (persistencia y movimiento lateral) y las prácticas de manejo en céspedes de estaciones frías y cálidas, incluyendo el potencial de evolución de resistencia de las malezas a herbicidas SU.

Type
Symposium
Copyright
Copyright © Weed Science Society of America 

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