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Development of Diacrisia casignetum Köllar (Lepidoptera: Arctiidae) on different host plants

Published online by Cambridge University Press:  19 September 2011

Madhuchhanda Chatterjee  and
D.K. Chaudhuri
Madhuchhanda Chatterjee
Affiliation:
Department of Zoology, Burdwan University, Burdwan-713104, India
D.K. Chaudhuri
Affiliation:
Department of Zoology, Burdwan University, Burdwan-713104, India
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Abstract

Laboratory evaluation of food consumption, food utilization, weight gain, development, fecundity and egg-hatchability were made from the beginning of the first instar to sixth instar on castor, groundnut, Indian bean, jute, sesame and sunflower. Total food consumption was highest on castor and lowest on jute. Development was fastest on castor, and castor was most efficiently digested followed by sunflower, sesame, groundnut, Indian bean and jute. Consumption index and digestive efficiency on all host plants declined with larval age. Digested portion of jute was most efficiently converted into body matter. Variations in fecundity and egg-hatchability for different host plants were statistically significant at P = 0.01. The differences in these parameters may be due to the variations in the nutritional quality of the hosts.

Résumé

Une evaluation de la comsomation et utilisation de la nourriture, gain en poids, developpement, fecondité et eclosion des ouefs au laboratoire fut entreprise du premier au sixième stage larvaire sur les arachides, le zesame, le tournesol, la jute, le pois indien et la ricine. La comsomation totalede la ricine ètait la plus elèvée mais celle de la jute ètait la plus basse. D'autre part le developpement des insectes ètait rapide sur la ricine. La ricine fut efficacement digerer et fut suivit du tournesol, du sezame, de l'arachide, du pois indien et de la jute. L'index de la comsomation et l'efficacité digestive fut reduite sur toute les plantes en fonction de l'âge des larves. Les portions de la jute digerées ne furent pas efficacement converties en matières organiques. Les variations de la fecondité et l'eclosion des ouefs pour les differentes plantes furent statistiquement significatives a P = 0,01. Les differences entre cse parametres sont due peut etre aux variations de la qualite nutritionnelle des insectes.

Keywords

Diacrisia casignetumhost plantsutilization developmentfecundityegg-hatchabilityDiacrisia casignetumplant-insectesutilisationdeveloppementfeconditeeclosion des ouefs
Type
Articles
Information
International Journal of Tropical Insect Science , Volume 10 , Issue 5 , October 1989 , pp. 705 - 711
Copyright
Copyright © ICIPE 1989

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