Studies on the Impact of Leaf Webber Diaphania pulverulentalis on Different Mulberry Varieties and Silkworm Bombyx mori L.

DOI: 10.18805/IJARe.A-5887    | Article Id: A-5887 | Page : 351-356
Citation :- Studies on the Impact of Leaf Webber Diaphania pulverulentalis on Different Mulberry Varieties and Silkworm Bombyx mori L..Indian Journal of Agricultural Research.2022.(56):351-356
C.T. Bhagyamma, N. Vijaya Kumari chittibhagyasree@gmail.com
Address : Department of Biosciences and Sericulture, Sri Padmavati Mahila Visvavidyalayam, Women’s University, Tirupati-517 502, Chittoor, Andhra Pradesh, India.
Submitted Date : 22-07-2021
Accepted Date : 19-01-2022


Background: Leaf webber Diaphania pulverulentalis is identified as one of the major pest which infests mulberry gardens and cause damage to mulberry growth and development and reduced nutritive levels in leaves. As mulberry is the prime food source of silkworm Bombyx mori L. the leaf webber infested leaves fed to the silkworm shows greater impact on the yield of, cocoon both quantity and quality. Hence, the present investigation was carried out to understand the impact of leaf webber infestation on various popular mulberry varieties and on silkworm growth and cocoon yield.  
Methods: The study was conducted in selected ten mandals of Anantapuramu district, Andhra Pradesh during 2016-2019. The infested leaves were collected randomly form each mulberry garden and the same were analysed for various parameters like growth and development and biochemical parameters and silkworm bioassay. And analysed as per standard operating proceures. 
Result: Photosynthetic pigments of  leaf webber infested mulberry leaves. i.e total chlorophylls in selected three mulberry varieties are decreased by an average of 40.17% and followed by carotenoids with a average decrease of 40.85%. Biomolecule components mainly proteins in selected varieties found to be decreased with the average percentage of 24.62 and carbohydrates and starch decreased with the average percentage of 47.09% 16.09% respectively. but in the phenols are increased with the average percentage of 57.39%, when compared with control (7.61%).


Biochemical parameters Cocoons Leaf webber Mulberry Silkworm


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