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Population patterns of Chilo spp. in sorghum, maize and millets

Published online by Cambridge University Press:  19 September 2011

K. V. Seshu Reddy ,
M. C. Lubega  and
K. O. S. Sum
K. V. Seshu Reddy
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), Mbita Point Field Station, P. O. Box 30, Mbita, South Nyanza, Kenya
M. C. Lubega
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), Mbita Point Field Station, P. O. Box 30, Mbita, South Nyanza, Kenya
K. O. S. Sum
Affiliation:
The International Centre of Insect Physiology and Ecology (ICIPE), Mbita Point Field Station, P. O. Box 30, Mbita, South Nyanza, Kenya
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Abstract

The paper reviews the work done on the population patterns of Chilo spp. in relation to the phenological stages of sorghum, maize and millets. The stem borer Chilo partellus entered sorghum and maize crops at 2–3 weeks after emergence and continued till harvest. There were 3–4 peaks of larval population during a cropping season. Such studies not only reveal the relationship between the larval population density and the phenological stage of the plants at infestation time, but are also helpful in scheduling and timing pest management strategies.

Résumé

L'article fait un compte rendu des travaux d'échantillonnage de la population de Chilo spp. en fonction des stads phénologiques du sorgho, du maïs et du millet. Le boreur de tige, Chilo partellus s'installe sur les plantes de sorgho et de maïs 2 à 3 semaines après germination, et jusqu à la moisson. Trois à quatre pics de la population larvaire ont été observés durant la saison. Cette étude, a non seulement revelé le rapport entre la densité de la population larvaire et le stade phénologique de la plante, mais a aussi aidé a programmer les stratègies d'intervention pour la lutte integrée.

Keywords

Stem borerChilo spp.population patternssorghummilletsIPMBoreur de tigeChilo spp.echantillonnage de la populationsorghomaismilletlutteintegrée

Information

Type
Taxonomy, Distribution, Population Ecology, Dynamics and Crop Losses
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. 547 - 554
Copyright
Copyright © ICIPE 1990

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References

REFERENCES

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