Insecticides: their effect on microorganisms and persistence in rice soil

Microbiological Research
Amal Chandra DasD Mukherjee

Abstract

A field experiment was conducted to investigate the effect of four insecticides, HCH, phorate, carbofuran and fenvalerate, at recommended doses on the preponderance of bacteria, actinomycetes and fungi. We also measured the persistence of the insecticides in the rhizosphere soil of rice. HCH and fenvalerate stimulated the proliferation of all of the microorganisms significantly. Phorate increased the population of bacteria and actinomycetes. Carbofuran accentuated the preponderance of actinomycetes in soil. Insecticides, in general, did not have marked influence on the proliferation of Bacillus, Streptomyces, Aspergillus and Fusarium in soil. However, we observed a stimulation of growth of Staphylococcus, Proteus and Sarcina with HCH, Pseudomonas, Corynebacterium, Erysipelothrix and Rhizopus with phorate, Serratia, Corynebacterium, Klebsiella, Escherichia, Rhizopus and Humicola with carbofuran, and Staphylococcus, Sarcina, Klebsiella and Nocardia with fenvalerate. On the other hand, there was an inhibition in growth of Pseudomonas, Micrococcus, Nocardia and Penicillium with HCH, of Pseudomonas, Micrococcus and Penicillium with carbofuran, and of Pseudomonas, Micrococcus and Micromonospora with fenvalerate. Different types of in...Continue Reading

Citations

Mar 10, 2009·Pakistan Journal of Biological Sciences : PJBS·M A LatifM M Rahman
Oct 27, 2016·Microbial Ecology·Dominika Drzewiecka
Feb 12, 2005·Acta Microbiologica Et Immunologica Hungarica·A M MoharramA Saleem
Jan 7, 2003·Acta Microbiologica Et Immunologica Hungarica·H M RifaatG Kovács
Jan 20, 2005·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Elemar VollRicardo Victória Filho
Feb 28, 2019·International Microbiology : the Official Journal of the Spanish Society for Microbiology·Sobia ChohanMuhammad Abid
Apr 14, 2005·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Vijay A K B GundiB R Reddy

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