Chlorpyrifos from agricultural activities eventually will flow to marine waters through rivers. This research was conducted to determine the resistance of bacteria from seawater of 100ppm Chlorpyrifos. Three of the five bacterial strains was isolated from seawater from Brebes and Pati. Central Java were selected because they were resistant to the pesticide chlorpyrifos. https://www.allfixelectricales.shop/product-category/computer-serial-cable/