Builder is a post emergent herbicide for the control of grassy weeds in broad leaf crops. It is a good systemic herbicide, absorbed from the leaf surface, with translocation throughout the plant, moving in both the xylem and phloem. Builder is very quickly absorbed by the weeds and translocated and kill the weeds. The affected weeds are unable to regenerate. It is recommended for the control of weeds in soybean, cotton, groundnut, blackgram and onion.