Ultrastructure of the Midgut of theThird Larval Instar of Chrysomya megacephala (Diptera:Calliphoridae) fed on malathion treated diet

Bakr, Reda F.A.; Ramadan, Rawheia H.; El-Sawy, Sanaa; Hussien, Samah M. A.

doi:10.21608/eajbsd.2012.14141

Ultrastructure of the Midgut of theThird Larval Instar of Chrysomya megacephala (Diptera:Calliphoridae) fed on malathion treated diet

Document Type : Original Article

Authors

¹ Department of Entomology, Faculty of Science, Ain Shams University, Egypt

² Department of Entomology, Faculty of Science, Benha University

³ Central Lab.of analysis of pesticide residues, Agricultural Research Center, Dokki

10.21608/eajbsd.2012.14141

Abstract

Our study established the histopathlogical effect of different dosages malathion on the third larval instar of Chrysomya megacephala. The concentration of malathion increased gradually during the larval stages reaching the maximum concentration in the third instar larvae.The midgut of third larval instar was studied using transmission electron microscope. The most significant alterations were increasing damage to the larvae midgut including columnar prominent ,fat vacuoles, atrophied microvilli. These results indicate that malathion retard larval development.

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