Particulars Biosurfactant Biosurfactant + Methyl Parathion Biosurfactant + Dichlorvos Biosurfactant + Chlorpyrifos control 5 ppm 10 ppm 25 ppm 5 ppm 10 ppm 25 ppm 5 ppm 10 ppm 25 ppm OD at 660 nm 0.264 2.329 3.650 2.806 2.504 3.173 3.173 2.535 3.000 3.175

Table 4: Absorbance of biosurfactant with organophosphate (Methyl parathion, Dichlorvos and Chlorpyrifos).