Abstract
Histopathological alteration in the ovaries of the desert locust Schistocerca gregaria (Forskal) induced by the IGR consult and Lufox
Highlights
The aim of the present study is to examine the histopathological changes occurred in the ovaries of the female S. gregaria developed from treated one day old of the 5th nymphal instar with sublethal concentration (LC50) of two compounds of insect growth regulators; Consult and Lufox
Consult and Lufox have proved to be toxic to one day old of the 5th nymphal instor S. gregaria. (Bakr et al, 2009). 3- Experimental insects: The First day of the 5th nymphal instar of S. gregaria was treated with the estimated LC50 of Consult and Lufox
A) Ovary of normal female: The female reproductive system consists of a pair of ovaries, which connect with a pair of lateral oviducts
Summary
Schistocerca gregaria (Forskal) have been recognized as a threat to agricultural production in Africa and western Asia for thousands of years. The main types of insect growth regulators used commercially are juvenile hormone analogues and chitin synthesis inhibitors (Parrella and Murphy, 1998). Histological studies of gonads may provide morphological evidence for functions of gonial, extragonial tissues and cells. The aim of the present study is to examine the histopathological changes occurred in the ovaries of the female S. gregaria developed from treated one day old of the 5th nymphal instar with sublethal concentration (LC50) of two compounds of insect growth regulators; Consult (chitin synthesis inhibitor) and Lufox (mixture of juvenile hormone mimic and chitin synthesis inhibitor). The first international Conference of Biological Sciences 27-29-Sep. 2010 Cairo – Egypt
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