International Journal of Environmental Sciences

Volume 6 Issue 1 2015- July 2015  Pages: 20- 28  <<Previous    Next>>

In vitro evaluation of soil microbial flora to the application of Triazophos

Author Information:

Meenu1, Neelam Joshi2
1-M.Sc.Student, PAU Ludhiana
2- Microbiologist, Department of Entomology, PAU, Ludhiana

ABSTRACT

Triazophos (Hostathion 40% EC), an organophosphate pesticide is extensively sprayed on various crops like paddy, cotton, maize and vegetables to control lepidopterans but its overuse has resulted in disturbing the population and activity of beneficial microbial community in soil. Its accumulation in soil causes environmental pollution and thus threat to human health. This paper reports variable response of soil microbial flora to in vitro application of triazophos. Fungi and actinomycetes count was found to be significantly affected by triazophos treatment (10, 50, 100, 150, 200, 500 and 1000 ppm) as compared to control. Bacterial population (phosphate solubilising bacteria, Pseudomonas spp. and Bacillus spp.) on the other hand was not much affected by the treatment implying more efficient utilization of bacteria in future for bioaugmentation technologies.

Keywords: Beneficial microbes, bioaugmentation, count, pesticide, pollution and triazophos

DOI:10.6088/ijes.6003

© 2015 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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