Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T12:00:20.007Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies on rice stem-borers in Kenya with emphasis on Maliarpha separatella Rag.

Published online by Cambridge University Press:  19 September 2011

Dang Thanh Ho ,
J. J. Njokah  and
J. G. Kibuka
Dang Thanh Ho
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), Mbita Point Field Station, P.O. Box 30, Mbita, South Nyanza, Kenya
J. J. Njokah
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), Mbita Point Field Station, P.O. Box 30, Mbita, South Nyanza, Kenya
J. G. Kibuka
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), Mbita Point Field Station, P.O. Box 30, Mbita, South Nyanza, Kenya
Get access

Abstract

Survey and experiments were conducted to investigate the distribution and bionomics of the rice stem-borers in Kenya. Stem-borers collected and identified included: Maliarpha separatella Rag., Diopsis thoracica West, Sesamia calamistis Hmps. and Chilo partellus Swin. Maliarpha separatella were most abundant and infested throughout the crop season, D. thoracica infested during vegetative phase. S. calamistis frequently occurred at the onset of flowering stage toward harvest. C. partellus occurred more frequently in upland than lowland rice and was at low population. Assessment of crop loss caused by M. separatella was carried out under field, caged condition. It was observed that the per cent of empty grains was affected by Maliarpha infestation. Calculated yield loss based on percentage empty grains and number of ‘whiteheads’ was higher than the actual differences between grain weight of uninvested and infested crops.

Keywords

Rice stem-borersyield loss assessmentChilo partellusDiopsis thoracicaMaliarpha separatellaSesamia calamistis
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 4 , Special Issue 1-2: Crop-Borers and Emerging Strategies for their Control , June 1983 , pp. 65 - 73
Copyright
Copyright © ICIPE 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Agyen Sampong, M. (1978) The ecology of rice stem-borers in West Africa. A paper presented at inauguration of African Association of Insect Scientists at the International Centre of Insect Physiology and Ecology (ICIPE), Nairobi, Kenya, 5–8 December. 1978.Google Scholar
Akinsola, E. A. (1973) Resistance to the yellow borer. Tryporyza incertulas (Walker), in rice varieties. M.Sc. Thesis. Up College of Agriculture, Philippines.Google Scholar
Akinsola, E. A. (1980a) Notes on damage caused by Maliarpha separatella on deep flooded rice in Mali. WARDA Technical Newsletter V2 No. 2, 1.Google Scholar
Akinsola, E. A. (1980b) Effects of infestation by Diopsis thoracica (West) on rice plants. WARDA Technical Newsletter V2, No 2, 3–4.Google Scholar
Anonymous (1977) Annual Report of WARDA (West Africa Rice Development Association). Special Research Project, Rokupr, Annual Report 1977. Monrovia, Liberia.Google Scholar
Anonymous (1978) Annual Report of WARDA (West Africa Rice Development Association). Vol. 3. Monrovia, Liberia.Google Scholar
Anonymous (1981) Entomology Section. Ahero Irrigation Research Station Technical Report. National Irrigation Board. Ministry of Agriculture of Kenya.Google Scholar
Breniere, J. (1969) Importance des problems entomologiques dans le development de la riziculture de L'Afrique de L'ouest. L'Aaron. Trop. 24, 906–927.Google Scholar
Breniere, T. (1970) Assessment of crop loss due to rice borer. In Crop Loss Assessment Methods (Edited by Chiarapa), FAO and Commonwealth Agricultural Bureau.Google Scholar
breniere, J. (1976) The principal insect pests of rice in West Africa and their control. West Africa Development Association, Monrovia, Liberia.Google Scholar
buddenhagen, I. W. and Persley, G. J. (1978) Rice in Africa, 1st edition. Academic Press, London.Google Scholar
Monyo, J. H. and Kanyeka, Z. L. (1978) Country Statements. In Rice in Africa, 1st edition (Edited by buddenhagen, I. W. and Persely, G. J.). Academic Press. London.Google Scholar
Munyua, J. M. (1978) Country statements. In Rice in Africa. 1st edition (Edited by buddenhagen, I. W. and Persley, G. J.). Academic Press, London.Google Scholar
Pathak, M. D. (1975) Insect pests of rice and their control. International Rice Research Institute, Los banos, Philippines.Google Scholar
Pollet, A. (1978) Les insects du riz en Cote d'Ivoire. IV. Determinisme des infestations du riz irrigne en Cote d'lvoire. Centrale (Kotiessou). O.R.S.T.O.M. ser, bil., Vol. XIII No. 1, 87–99.Google Scholar
Sandhu, G. S. and Ramesh Chander (1975) Occurrence of green-striped borer, Maliarpha separatella Ragonot on sorghumin Punjab. J. bombay nat. Hist. Soc. 72, 872–873.Google Scholar
Soto, P. E. and Siddiqi, Z. (1978) Insect pests and rice production in Africa. In Rice in Africa. 1st edition (Edited by buddenhagen, I. W. and Persley, G. J.), Academic Press, London.Google Scholar