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Applied and Environmental Soil Science
Volume 2010 (2010), Article ID 850758, 4 pages
Research Article

Effect of Butachlor Herbicide on Earthworm Eisenia fetida—Its Histological Perspicuity

Department of Genetics, School of Biological Sciences, Madurai Kamaraj University, Madurai 625 021, India

Received 2 June 2009; Accepted 13 October 2009

Academic Editor: M. Nurul Alam

Copyright © 2010 Muthukaruppan Gobi and Paramasamy Gunasekaran. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


With the advent of the Green Revolution, there has been a quantum leap in the use of synthetic herbicides and pesticides throughout the world to sustain high yielding crop varieties. Continuous use of these synthetic chemicals leads to loss of soil fertility and soil organisms. To explore the effect of exposure to commercial herbicide (Butachlor) on the life history parameters (biomass, clitellum development, and cocoon production) and the histological changes in the earthworm Eisenia fetida over 60 days, the dried cow dung was contaminated with 0.2575 mg , 0.5150 mg , and 2.5750 mg of butachlor based on the value, and a control was maintained. The mean earthworm biomass was found to be decreased with increasing herbicide concentration. Similarly, cocoon production was also reduced by the increasing herbicide concentration. A possible explanation is an increased demand for energy, needed for the regulation and detoxification of herbicide. All earthworms in the exposed group were found to have glandular cell enlargement and to be vacuolated.