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Efficacy of carbendazim as an anti-microsporidial agent and its influence on the growth and cocoon characters of silkworm, Bombyx mori L.

Published online by Cambridge University Press:  19 September 2011

A. K. Chandra ,
R. K. Saha ,
J. Bhattacharya ,
N. Krishnan ,
S. K. Sen  and
B. Saratchandra
A. K. Chandra
Affiliation:
Central Sericultural Research and Training Institute, Berhampore-742 101, West Bengal, India
R. K. Saha
Affiliation:
Central Sericultural Research and Training Institute, Berhampore-742 101, West Bengal, India
J. Bhattacharya
Affiliation:
Central Sericultural Research and Training Institute, Berhampore-742 101, West Bengal, India
N. Krishnan
Affiliation:
Central Sericultural Research and Training Institute, Berhampore-742 101, West Bengal, India
S. K. Sen
Affiliation:
Central Sericultural Research and Training Institute, Berhampore-742 101, West Bengal, India
B. Saratchandra
Affiliation:
Central Sericultural Research and Training Institute, Berhampore-742 101, West Bengal, India
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Abstract

Silkworm larvae infected transovarially with Nosema bombycis were fed with an aqueous suspension of Bavistin (50% carbendazim w/w) at 2 and 3% concentrations. The treatments increased the survival of worms and reduced the pebrine infection in the lot significantly, although complete elimination of infection was not observed. Significant beneficial effects of the treatments at 2 and 3% were also observed with respect to larval, cocoon and cocoon shell weights and cocoon to shell ratio. However, treatments with Bavistin at 4% concentration produced an adverse effect on cocoon characters.

Résumé

Les chenilles du ver-à-soie infectées par voie transovarienne avec Nosema bombycis, ont été nourries avec une solution aqueuse de Bavistin (carbendazim 50%, w/w) aux concentrations de 2 et 3%. Les traitements ont augmenté la survie des vers et réduit significativement l'infection à pébrine au sein du lot, quoiqu'une élimination complète de l'infection n'ait pas été observée. Des effets bénéfiques significatifs du traitements ont été aussi notés à 2 et 3 % à l'égard du poids de ver, du cocon et de la carcasse du cocon et à l'égard du ratio cocon/carcasse. Cependant, le traitement avec du Bavistin à la concentration de 4% a produit un effet adverse sur des caractères du cocon.

Keywords

Bombyx morimicrosporidiosisNosema bombycischemotherapycarbendazim (Bavistin)Bombyx morimicrosporidioseNosema bombycischimiothérapiecarbendazim (Bavistin)
Type
Short Communications
Information
International Journal of Tropical Insect Science , Volume 16 , Issue 2 , June 1995 , pp. 233 - 235
Copyright
Copyright © ICIPE 1995

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References

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