International Journal of Entomology Research

Authors
Shashi Meena, Vinod Kumari

Abstract
Histopathological changes in the male reproductive organ of Chrotogonus trachypterus Blanchard were examined when topically treated sub lethal dose (9.93 ppm) of deltamethrin. Testes were removed out, dehydrated, stained and observed under light microscope. Degeneration and vacuolization were started in germ cells 12 h after treatment. Considerable changes were observed 24 h after treatment where testicular wall protruded out along its periphery. Disintegration of cytoplasm and formation of vacuoles were observed in the spermatogonia and spermatocytes in maturation region. Disruption in reduction division, pycnotic nucleus and karyorrhexis in the spermatocyte widely observed. Pronounced damaged of cytoplasmic and nuclear material was observed 48 h after treatment. These findings represented sublethal effects of deltamethrin at cellular level and supported the indication of less survival abilities of C. trachypterus.