Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives

Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives

1 fig. 3 tab. 22 ref. Sum. (En)

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Bibliographic Details
Main Authors: Valverde, B.E., Merayo, A., Reeder. R., Riches, C.R.
Format: MON biblioteca
Language:English
Published: Brighton Crop Protection Council, Surrey (RU) 1999
Subjects:ZEA MAYS, ROTTBOELLIA COCHINCHINENSIS, MUCUNA DEERINGIANA, CANAVALIA ENSIFORMIS, COMPETENCIA, BIOLOGICA, SOSTENIBILIDAD, PLANTAS DE COBERTURA, CONTROL BIOLOGICO, AMERICA CENTRAL,
Online Access:https://repositorio.catie.ac.cr/handle/11554/2566
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spelling dig-catie-11554-25662022-02-17T22:19:37Z Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives Proceedings Valverde, B.E. Merayo, A. Reeder. R. Riches, C.R. ZEA MAYS ROTTBOELLIA COCHINCHINENSIS MUCUNA DEERINGIANA CANAVALIA ENSIFORMIS COMPETENCIA BIOLOGICA SOSTENIBILIDAD PLANTAS DE COBERTURA CONTROL BIOLOGICO AMERICA CENTRAL 1 fig. 3 tab. 22 ref. Sum. (En) Itchgrass (Rottboellia cochinchinensis) is a serious and persistent weed problem in many tropical agricultural and conservation areas. In Central America it is one of the most noxious and serious weeds in several upland crops, causing severe yield losses. Experimentally, pre-emergence control with herbicides, weed elimination during the fallow period and zero tillage reduced itchgrass populations in comparison to conventional practices used growers (no fallow management, soil preparation by disc harrowing and limited use of in-crop herbicides. Additional improvement in itchgrass management is brought about by inter-sowing legume cover crops. Of several legumes evaluated, mucuna (Mucuna deeringiana) and Canavalia ensiformis controlled the weed better and covered the soil, especially if planted simultaneously with maize. Itchgrass suppression by mucuna usually corresponded with increased grain yields but competition by the cover crop could reduce yields a good compromise is to delay mucuna planting by two weeks in relation to maize. Integrated tactics to control itchgrass were evaluated in on-farm validation plots. Pendimethalin controlled itchgrass at the onset of validation plots and facilitated the establishment of the cover crop. Itchgrass densities were lower in validation plots than in grower's fields while infestation levels and the soil seed bank decreased over three years with integrated management. In general, corn yields were also higher in validation plots. Integrated itchgrass management also proved economically feasible for smallholders. A promising alternative is biological control with the itchgrass smut, Sporisorium ophiuru, which prevents seed set and its host specific 2014-10-17T16:04:41Z 2014-10-17T16:04:41Z 1999 MON 359452 https://repositorio.catie.ac.cr/handle/11554/2566 (RU) en application/pdf Brighton Crop Protection Council, Surrey (RU)
institution CATIE
collection DSpace
country Costa Rica
countrycode CR
component Bibliográfico
access En linea
databasecode dig-catie
tag biblioteca
region America Central
libraryname Biblioteca Conmemorativa Orton
language English
topic ZEA MAYS
ROTTBOELLIA COCHINCHINENSIS
MUCUNA DEERINGIANA
CANAVALIA ENSIFORMIS
COMPETENCIA
BIOLOGICA
SOSTENIBILIDAD
PLANTAS DE COBERTURA
CONTROL BIOLOGICO
AMERICA CENTRAL
ZEA MAYS
ROTTBOELLIA COCHINCHINENSIS
MUCUNA DEERINGIANA
CANAVALIA ENSIFORMIS
COMPETENCIA
BIOLOGICA
SOSTENIBILIDAD
PLANTAS DE COBERTURA
CONTROL BIOLOGICO
AMERICA CENTRAL
spellingShingle ZEA MAYS
ROTTBOELLIA COCHINCHINENSIS
MUCUNA DEERINGIANA
CANAVALIA ENSIFORMIS
COMPETENCIA
BIOLOGICA
SOSTENIBILIDAD
PLANTAS DE COBERTURA
CONTROL BIOLOGICO
AMERICA CENTRAL
ZEA MAYS
ROTTBOELLIA COCHINCHINENSIS
MUCUNA DEERINGIANA
CANAVALIA ENSIFORMIS
COMPETENCIA
BIOLOGICA
SOSTENIBILIDAD
PLANTAS DE COBERTURA
CONTROL BIOLOGICO
AMERICA CENTRAL
Valverde, B.E.
Merayo, A.
Reeder. R.
Riches, C.R.
Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives
description 1 fig. 3 tab. 22 ref. Sum. (En)
format MON
topic_facet ZEA MAYS
ROTTBOELLIA COCHINCHINENSIS
MUCUNA DEERINGIANA
CANAVALIA ENSIFORMIS
COMPETENCIA
BIOLOGICA
SOSTENIBILIDAD
PLANTAS DE COBERTURA
CONTROL BIOLOGICO
AMERICA CENTRAL
author Valverde, B.E.
Merayo, A.
Reeder. R.
Riches, C.R.
author_facet Valverde, B.E.
Merayo, A.
Reeder. R.
Riches, C.R.
author_sort Valverde, B.E.
title Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives
title_short Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives
title_full Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives
title_fullStr Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives
title_full_unstemmed Integrated management of itchgrass (Rottboellia cochinchinensis) in maize in seasonally-dry Central America: facts and perspectives
title_sort integrated management of itchgrass (rottboellia cochinchinensis) in maize in seasonally-dry central america: facts and perspectives
publisher Brighton Crop Protection Council, Surrey (RU)
publishDate 1999
url https://repositorio.catie.ac.cr/handle/11554/2566
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AT reederr integratedmanagementofitchgrassrottboelliacochinchinensisinmaizeinseasonallydrycentralamericafactsandperspectives
AT richescr integratedmanagementofitchgrassrottboelliacochinchinensisinmaizeinseasonallydrycentralamericafactsandperspectives
AT valverdebe proceedings
AT merayoa proceedings
AT reederr proceedings
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