Weeds are the undesirable plants that grow amidst of the crops. Weeds are to be removed as they absorb the nutrients that are essential for the crops to grow. The removing of weeds is called as weeding which can be done either manually or with the help of chemicals. Manual weeding is a time consuming process and also requires a proper maintenance of the implements that are used for weeding. Therefore, a chemical called weedicide is used to kill the weeds which destroys the weeds without affecting the crops.