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Herbicidal Control of Largeleaf Lantana (Lantana camara)

Published online by Cambridge University Press:  20 January 2017

Jason Ferrell ,
Brent Sellers  and
Ed Jennings
Jason Ferrell*
Affiliation:
Department of Agronomy, University of Florida, 304 Newell Hall, Gainesville, FL 32611
Brent Sellers
Affiliation:
Range Cattle Research and Education Center, University of Florida, Ona, FL 33865
Ed Jennings
Affiliation:
Pasco Cooperative Extension, Pasco County Fairgrounds, 36702 State Road 52, Dade City, FL 33525-5198
*
Corresponding author's E-mail: jferrell@ufl.edu
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Abstract

Largeleaf lantana is a perennial shrub that commonly infests pastures, roadsides, and natural areas. Many experiments have been conducted to manage this weed, but few successful herbicides have been found. Little information is available for the effectiveness of fluroxypyr, aminopyralid, or aminocyclopyrachlor on largeleaf lantana. Experiments were conducted in central Florida on dense, natural infestations of largeleaf lantana. Aminopyralid (0.12 kg ha−1), fluroxypyr (0.56 kg ha−1), and aminocyclopyrachlor (0.2 kg ha−1) were either applied in the fall (approximately 2 mo before frost) or in the fall followed by a spring application. Aminopyralid was ineffective on largeleaf lantana, and neither one nor two applications resulted in > 20% control 1 yr after treatment (YAT). Fluroxypyr applied once in the fall resulted in 12% control at 1 YAT, but two applications resulted in 80% control after 1 yr. The combination of fluroxypyr + aminopyralid, applied twice, resulted in approximately 90% control 1 YAT. A single application of fluroxypyr + aminopyralid failed to provide greater than 20% control. Conversely, aminocyclopyrachlor applied once in the fall provided 98% control of largeleaf at 1 YAT. Where aminocyclopyrachlor was applied twice, largeleaf lantana control was 100%. From these data, largeleaf lantana can be effectively controlled by two applications of fluroxypyr, two applications of fluroxypyr + aminopyralid, or a single application of aminocyclopyrachlor. Individual plant treatments were also investigated using herbicides applied as basal or cut surface applications. At 1 YAT, only triclopyr + aminopyralid provided > 90% control as a basal application. The other herbicide combinations appeared to be effective earlier, but significant regrowth had occurred by 1 YAT. Cut surface applications were similar with triclopyr + aminopyralid and triclopyr + fluroxypyr providing effective control. Neither triclopyr alone nor imazapyr provided effective control for 1 YAT with basal or cut surface applications.

La Lantana camara es un arbusto perene que comúnmente infesta pastizales, orillas de caminos y áreas naturales. Se han realizado muchos experimentos para el manejo de esta maleza, pero se han encontrado pocos herbicidas exitosos. Hay poca información disponible acerca de la efectividad de fluroxypyr, aminopyralid o aminocyclopyrachlor para el control de L. camara. Se realizaron experimentos en Florida central en densas infestaciones naturales de esta maleza. Aminopyralid (0.12 kg ha−1), fluroxypyr (0.56 kg ha−1) y aminocyclopyrachlor (0.2 kg ha−1), fueron aplicados ya sea en el otoño (aproximadamente 2 meses antes de la primera helada) o en el otoño seguidos por una aplicación en primavera. Aminopyralid fue inefectivo y ni una ni dos aplicaciones proporcionaron >20% de control de L. camara un año después del tratamiento (YAT). Fluroxypyr aplicado una vez en el otoño resultó en 12% de control 1 YAT, pero dos aplicaciones proporcionaron 80% de control después de un año. La combinación de fluroxypyr + aminopyralid, aplicada dos veces, resultó en aproximadamente 90% de control 1 YAT. Una sola aplicación de fluroxypyr + aminopyralid falló en proporcionar un control mayor al 20%. Por el contrario, aminocyclopyrachlor aplicado una vez en el otoño proporcionó 98% de control de L. camara 1 YAT. Donde se aplicó aminocyclopyrachlor dos veces, el control de esta maleza fue de 100%. A partir de esta información, L. camara puede ser controlada efectivamente con dos aplicaciones de fluroxypyr, dos aplicaciones de fluroxypyr + aminopyralid, o una sola aplicación de aminocyclopyrachlor. También se investigaron tratamientos a plantas individuales usando herbicidas aplicados a la base o sobre cortes en la superficie. A 1 YAT, solamente triclopyr + aminopyralid proporcionaron >90% de control en aplicaciones a la base. Aparentemente, las otras combinaciones de herbicidas fueron efectivas más temprano, pero al año había ocurrido un rebrote significativo. Aplicaciones a cortes en la superficie tuvieron resultados similares con triclopyr + aminopyralid y triclopyr + fluroxypyr, resultando en un control efectivo. Ni triclopyr solo ni imazapyr proporcionaron control efectivo a 1 YAT con aplicaciones a la base o en los cortes en la superficie.

Keywords

Aminocyclopyrachloraminopyralidfluroxypyrimazapyrtriclopyrlargeleaf lantana, Lantana camara L. LANCABasalbroadcastsequential application
Type
Notes
Information
Weed Technology , Volume 26 , Issue 3 , September 2012 , pp. 554 - 558
Copyright
Copyright © Weed Science Society of America 

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