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Assessment of On-Farm Losses in Rice Due to Insect Pests

Published online by Cambridge University Press:  19 September 2011

M. Agyen-Sampong
M. Agyen-Sampong
Affiliation:
West Africa Rice Development Association, Regional Mangrove Swamp Rice Research Station, Rokupr. P.M.B. 678, Freetown, Sierra Leone
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Abstract

The rice plant is an extremely versatile crop that is grown under both tropical and sub-tropical conditions in various ecological conditions. Several insect pest species attack the rice crop at all growth stages while in the field. The nature and magnitude of crop loss due to insect pest attack in tropical and sub-tropical Africa are highlighted. Reliable evaluation techniques for establishing relation between insect pest intensity/damage and crop loss are outlined. Natural insect pest infestation in the field, manipulation of pest infestation with chemicals, caging to confine or keep out insect pests and the use of resistant varieties as methods of estimating on-farm losses due to insects are discussed. In tropical Africa, the major constraint to the determination of crop loss due to insect pests of rice is research-related.

Résumé

Le riz est une culture tres adaptable qui se cultive dans des conditions ecologiques diverses dans les zones tropicales et sub-tropicales. Plusieurs especes d'insectes peuvent attaquer le riz au champs a tous les stades de son developpement. Nous presentons dans cet article la nature et l'importance des degats causes au riz par les insectes dans les zones tropicales et sub-tropicales de l'Afrique. L'article met l'accent sur les techniques fiables d'evaluation utilisees pour mesurer les relations pouvant exister entre le degre d'infestation/degats et les pertes de recoltes. Des methodes d'evaluation des pertes au champs causees par des insectes, telles que l'infestation des insectes au champs, lutte chimique contre les insectes, l'utilization des cages et des varietes resistantes contre les insectes sont aussi discutees. En Afrique tropicale, la determination precise des pertes de recoltes dues aux insectes est un probleme de recherche.

Keywords

Ricecrop lossrice pestsestimation of crop losstropical AfricaRizperte de recoltesinsectes nuisibles au rizevaluation des pertesAfrique tropicale
Type
Research Article
Information
International Journal of Tropical Insect Science , Volume 9 , Special Issue 6: On-Farm and Post-Harvest Losses of Cereal Crops in Africa due to Pests and Diseases , December 1988 , pp. 691 - 695
Copyright
Copyright © ICIPE 1988

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References

REFERENCES

Agyen-Sampong, M. (1977) Insect pests of rice in Ghana and their control. In Proc. WARDA Seminar Plant Protection for the Rice Crop. WARDA. March, 1977.Google Scholar
Agyen-Sampong, M. (1982) Sampling methods for rice insects. In Concept, Techniques and Application of Integrated Pest Management in Rice in West Africa (Edited by Akinsola, E. A.et al.), pp. 372–383.Google Scholar
Agyen-Sampong, M. and Fannah, J. S. (1980) Dirty panicles and rice yield reduction caused by bugs. Int. Rice Res. Newsl. 5, 11–12.Google Scholar
Akinsola, E. A. and Agyen-Sampong, M. (1984) The ecology, bionomics and control of rice stemborers in West Africa. Insect Sci. Applic. 5, 69–77.Google Scholar
Breniere, J. (1969) Importance des problems entomologiques dans le developpement de la riziculture de l'Afrique de L'ouest. L'Agron. Trop. 24, 906–927.Google Scholar
Breniere, J. and Rodriguez, H. (1963) Le borer du riz a Madagascar: efficacite des insecticides: Sensibilite Varietale: experimentation 1961. Argon, trop. 18, 427–459.Google Scholar
Breniere, J., Rodriguez, H. and Ranaivosoa, (1962) Un ennemi du riz a Madagascar, Maliarpha separatella, or borer blanc. Agron. trop. 17, 223–302.Google Scholar
Church, B. M. (1971) The place of sample survey in crop loss estimation: Crop loss assessment methods. In FAO Manual of Evaluation of Losses by Pests, Diseases and Weeds (Edited by Chiarappa, L.). (not sequentially paginated).Google Scholar
Cochran, W. G. (1963) Sampling Techniques, 2nd Edition. John Wiley and Sons. Inc., New York.Google Scholar
Cramer, H. H. (1967) Plant Protection and World Crop Production. Pflschutz-Nach. Bayer 20 1–524.Google Scholar
Dyck, V. A. (1978) Sampling rice insects. Paper presented at “Short course on Integrated Pest Control for Irrigated Rice in South and Southeast Asia”. 16 October-18 November, Los Banos, Philippines.Google Scholar
El-Azizi, A. F. (1978) Country statement—Egypt. In Rice in Africa, pp. 319–321.Google Scholar
FAO (1971) Crop loss assessment methods. FAO Manual on the Evaluation and Prevention, of Losses by Pests, Diseases and Weeds. (Edited by Chiarappa, L.). Alden Press, Oxford.Google Scholar
Gomez, K. A. and Bernardo, R. C. (1974) Estimation of stemborers damage in rice fields. J. Econ. Ent. 67, 509–513.CrossRefGoogle Scholar
Kumar, R. (1984) Insect Pest Control. Edward Arnold, London.Google Scholar
Le Clerg, E. L. (1971) Field experiments for assessment of crop losses: Crop loss assessment methods. In FAO Manual of the Evaluation of Losses by Pests, Diseases and Weeds (Edited by Chiarappa, L.) (not sequentially paginated).Google Scholar
Nishida, T. and Torii, T. (1970) A handbook of field methods for research on rice stemborers and their natural enemies. International Biological Programme Handbook No. 14. London.Google Scholar
Onate, B. T. (1965) Estimation of stemborer damage in rice fields. Phil. Stat. 14, 201–221.Google Scholar
Pollet, A. (1979) Le forer blanc du riz irrique en RCI Maliarpha separatella Les relations plante-insecte. Congres sur la Lutte Contre les Insectes en Milieu Tropical. Marseille, 13–16 Mars 1979.Google Scholar
Southwood, T. R. E. (1978) Ecological methods with particular reference to the study of insect populations. Halsted Press, New York.CrossRefGoogle Scholar
Ukwungwu, M. N. and Obediyi, J. A. (1984) Yield losses in resistant and susceptible varieties of rice in Nigeria due to Chilo zacconius and other stem borers. Trop. Pest Manage. 30, 291–295.CrossRefGoogle Scholar
Veracambre, B. (1977) Development of a chemical control method against pests of irrigated rice in Senegal. In Proc. WARDA Seminar Plant Protection for the Rice Crop. WARDA, March 1977.Google Scholar
Walker, P. T. (1981) Methods for studying the pest/yield relationship and for appraising losses due to insects and mites. In FAO Crop Loss Assessment Methods—Supplement 3 (Edited by Chiarappa, L.), pp. 73–78. Commonwealth Agricultural Bureaux, Slough.Google Scholar
WARDA (1977) Regional Mangrove Swamp Rice Research Station. Annual Report for 1976.Google Scholar
WARDA (1978) Regional Mangrove Swamp Rice Research Station. Annual Report for 1977.Google Scholar
WARDA (1979) Regional Mangrove Swamp Rice Research Station. Annual Report for 1978.Google Scholar
WARDA (1980a) Research Department Annual Report. WARDA, Monrovia, Liberia.Google Scholar
WARDA (1980b) Regional Mangrove Swamp Rice Research Station. Annual Report for 1979.Google Scholar