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Evolution de la microsporidiose due à Nosema henosepilachnae dans les populations naturelles de Henosepilachna elaterii

Published online by Cambridge University Press:  19 September 2011

Bhen Sikina Toguebaye
Bhen Sikina Toguebaye
Affiliation:
Département de Biologie animale, Faculté des Sciences et Techniques, Université C. A. Diop de Dakar, Dakar, Sénégal
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Abstract

Collections of the leaf beetle Henosepilachna elaterii Rossi, 1794 (Protozoa: Microspora) were carried out monthly from July 1988 to June 1991, from melon and cucumber plants in Senegal. Of the 1895 larvae and adults collected and examined, 1223 (64.53%) were infected with Nosema henosepilachnae Toguebaye and Marchand, 1984. The monthly infection prevalence ranged from 51.28% to 87.30%. These observations indicate that the infection due to N. henosepilachnae is prevalent in the natural populations of H. elaterii.

Résumé

Des récoltes mensuelles de Henosepilachna elaterii Rossi, 1794 (Protozoa: Microspora) ont été faites sur des plants de melon et concombre entre juillet 1988 et juin 1991 au Sénégal. Sur les 1895 larves et adultes capturés et examinés, 1223 (64,53%) étaient infestés par Nosema henosepilachnae Toguebaye et Marchand, 1984. Les taux mensuels de parasitisme ont varié de 51,28% à 87,30%. Ces observations indiquent que la microsporidiose est fréquente et importante dans les populations naturelles de H. elaterii.

Keywords

microsporidioseNosema henosepilachnaeColéoptèreHenosepilachna elateriimicrosporidiosisNosema henosepilachnaeColeopteraHenosepilachna elaterii
Type
Short Communications
Information
International Journal of Tropical Insect Science , Volume 16 , Issue 3-4 , December 1995 , pp. 387 - 389
Copyright
Copyright © ICIPE 1995

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References

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