The Effect Of Pesticides Cypermethrin And Lambda- Cyhalothrin On The Bacterial Flora Of The Soil Around Mouau: Akpala John Ude

ABSTRACT

The effect of Cypermethrin and Lambda-cyhalothrin on the microbial diversity of agricultural soil at American quarters around Michael Okpara University of Agriculture Umudike, was evaluated. Serial dilutions of the sample resulted in five bacterial isolate. Five bacterial isolate used for this study were identified as Proteus species, Klebsiella species, Bacillus species, E.coli, Streptococcus species. Isolated organisms were subjected to three different concentrations of 100%, 50%, 25% with 0% as the control concentration. The colonies of each bacterial isolate were calculated using colony forming unit per gram. The result, showed that bacterial isolate at higher concentration had more effect on the microbial diversity of the soil while the lower concentration inhibits. This work reviewed that the use pesticides at higher concentration could be detrimental to soil microorganisms especially soil bacterial which play essential role in bioremediation and maintenance of soil fertility.