Abstract
Impact of two pesticides namely Methyl parathion and Methyl carbamate were tested on abundance of a ciliate soil Protozoa Colpidiumcolpoda. Protozoa was cultured in microcosm in different concentration of pesticides. Abundance of Protozoa was recorded in each concentration and compared with control in which pesticide was not added. The abundance of Colpidium colpoda in control was recorded as 1635/ml but in Methyl parathion the abundance was recorded as 1232/ml, 712/ml, 440/ml, 116/ml and 0 at a concentration of 10mg/l, 20mg/l, 30mg/l, 40mg/l and 50mg/l respectively. The abundance of Colpidium colpoda was observed as 960/ml, 580/ml, 312/ml, 95/ml and 0 in Methyl carbamate at a concentration of 20mg/l, 40mg/l, 60mg/l, 80mg/l and 100mg/L respectively.. KEYWORDS :Pesticides, Methyl parathion, Methyl carbamate, Microcosm
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