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Management of Chilo spp. in rice in Africa

Published online by Cambridge University Press:  19 September 2011

E. A. Akinsola
E. A. Akinsola
Affiliation:
WARDA, BP 2551, Bouake, Côte d'Ivoire
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Abstract

Chilo species constitute one of the three major lepidopterous rice stem borers in Africa and their occurrence stretches across the different rice ecosystems; two major species, C. zacconius Bles. and C. diffusilineus (J. de Joannis) are found in West Africa, while C. partellus (Swinh.) and C. agamemnon Bles. appear to be the predominant species on rice in East and North Africa, respectively. A brief note is given on some aspects of the biology, especially the life history and behaviour of C. zacconius. Control measures are discussed as well as an integrated approach towards management based essentially on growing resistant varieties, conservation of natural enemies and adjusting planting dates.

Résumé

Les espèces de Chilo, l' un des trois principaux lépidoptères foreurs de tiges du riz en Afrique, se rencontrent dans l'ensemble des écosystèmes où se pratique cette culture. En Afrique de l'Ouest, les deux espèces majeures sont C. zacconius Bles. et C. diffusilineus (J. de Joannis), tandis qu'en Afrique Orientale et en Afrique du Nord, ce sont respectivement C. partellus (Swinh.) et C. agamemnon Bles. qui prédominent. L'auteur décrit brièvement quelques aspects de la biologie de C. zacconius, et plus particulièrementson cycle de vie et à son comportement. Il présente ensuite les moyens de lutte contre ces insectes, ainsi qu'une méthode de gestion intégrée qui consiste essentiellement en l'utilisation de variétés de riz résistantes, la préservation des ennemis naturels et l'ajustement du calendrier cultural.

Keywords

RiceChilo spp.stem borersAfricacontrolpest managementRizespèces de Chiloforeurs de tigesAfriqueluttegestion intégrée des ravageurs
Type
Integrated Pest Management
Information
International Journal of Tropical Insect Science , Volume 11 , Special Issue 4-5: Tropical Stem Borers of Graminaceous Crops: A New Synthesis , October 1990 , pp. 813 - 823
Copyright
Copyright © ICIPE 1990

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References

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