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Histopathological studies of some insecticides on the alimentary canal of Khapra beetle Trogoderma granarium (Evert)

Rajesh Kumar Sumana, Surabhi Salonia& Lakshman Sahb*
aP.G. Department of Zoology, Magadh University, Bodh-Gaya, Bihar, India
bDepartment of Zoology, R.K.D College Patna, Patliputra University, Patna, Bihar, India
Received : 11th May, 2020 ; Revised :20th June 2020

Abstract- The present investigation describes the histopathological changes of different sections of alimentary canal of Trogoderma granarium (Evert) due to effect of experimentally ascertained LD50 doses of Gamma-BHC, Malathion and Fenitrothion. The uses of insecticides for effective and prompt control of the harmful population of insects are widely prevalent now a day. Their extensive use in pest management is mainly due to their simplicity, promptness, effectiveness and flexibility in character. The histopathological study of alimentary canal of different insects due to the effect of the insecticides has been studied by various workers such as Pilat (1935)1, Woke (1940)2, Eckert (1948)3, Lal et al. (1970)4, Misra and Mukherji (1972)5, Misra et al. (1972)6 & Mukherji and Misra (1972)7. In the present investigation, histopathological changesĀ  of alimentary canal of Trogoderma granarium (Evert) with Gamma-BHC, Malathion and Fenitrothion have been studied.

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