IBIS-Flora

Angiosperm Flora of India

Purple Nutsedge (Cyperus rotundus) and False-Green Kyllinga (Kyllinga gracillima) Control in Bermudagrass Turf

Publication Type:Journal Article
Year of Publication:2012
Authors:Gannon, TW, Yelverton, FH, Tredway, LP
Journal:Weed Technology
Volume:26
Issue:1
Date Published:2012
ISBN Number:0890037X
Keywords:Cynodon, Cyperaceae, Cyperus, Cyperus rotundus, Kyllinga
Abstract:

Experiments were conducted during 2007 and 2008 to evaluate various herbicide treatment regimes for POST purple nutsedge and false-green kyllinga control. Evaluated herbicides included halosulfuron, sulfentrazone, sulfosulfuron, and trifloxysulfuron. Evaluated treatments did not cause objectionable bermudagrass injury at any time. Results were variable across years, likely due to reduced rainfall in 2007 causing reduced purple nutsedge and false-green kyllinga growth. In 2007, averaged across herbicide rate and number of applications, sulfosulfuron provided greater purple nutsedge control than trifloxysulfuron. Sulfosulfuron and trifloxysulfuron provided similar levels of control in 2008, although both were less effective than in 2007. In 2007, sulfosulfuron and trifloxysulfuron provided excellent (> 90%) false-green kyllinga control, and trifloxysulfuron provided greater control (80%) compared to sulfosulfuron (61%) in 2008. Sulfentrazone provided < 30 and 60% purple nutsedge and false-green kyllinga control, respectively. A sequential application applied 6 wk after initial treatment provided the highest level of purple nutsedge and false-green kyllinga control with evaluated herbicides. Tank-mix partners to enhance purple nutsedge control with sulfentrazone provided inconsistent results.Sulfosulfuron and trifloxysulfuron offer acceptable POST perennial sedge control in tolerant warm-season turfgrasses. Durante 2007 y 2008 se realizaron experimentos para evaluar varios regímenes de tratamientos de herbicida para el control pos-emergente de Cyperus rotundus y Kyllinga gracillima. Los herbicidas evaluados incluyeron halosulfuron, sulfentrazone, sulfosulfuron y trifloxysulfuron. Los tratamientos evaluados no causaron daño objetable al Cynodon spp. en ningún momento. Los resultados fueron variables entre años, probablemente debido a la escasez de lluvias en 2007 que provocó una reducción en el crecimiento de C. rotundus y K. gracillima. En 2007, sacando un promedio entre todas las dosis de herbicida y número de aplicaciones, el sulfosulfuron proporcionó un mayor control de C. rotundus que el trifloxysulfuron.Sulfosulfuron y trifloxysulfuron proporcionaron niveles similares de control en 2008, aunque ambos fueron menos efectivos que en 2007. En 2007, sulfosulfuron y trifloxysulfuron proporcionaron un excelente control (> 90%) de K. gracillima mientras que trifloxysulfuron proporcionό mayor control (80%) comparado con sulfosulfuron (61%) en 2008. Sulfentrazone proporcionó un control de C. rotundus y K. gracillima de < 30 y 60%, respectivamente. Una aplicación secuencial realizada 6 semanas después del tratamiento inicial proporcionó el nivel más alto de control de rotundus sulfentrazone, proporcionaron resultados inconsistentes. Sulfosulfuron y trifloxysulfuron ofrecen control pos-emergente aceptable de especies perenes de la familia Cyperaceae en céspedes tolerantes a estaciones calurosas.

URL:http://www.jstor.org/stable/41409091
Short Title:Weed Technology
Fri, 2014-01-24 21:44 -- admin
https://secure.gravatar.com/avatar/5ade1b012674ce3dd941e2ea5dd15cc1.jpg?d=https%3A//flora.indianbiodiversity.org/sites/all/modules/patches/contrib/gravatar/avatar.png&s=100&r=G
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith