To study on the efficiency of intercultivator on weed management in Cumbu Napier Hybrid grass cultivation and crop growth performance variety CO-4, the field experiment was conducted at Post Graduate Research Institute in Animal Sciences, Kattupakkam, Kancheepuram District, Tamil Nadu, India during the year 2018-2019. The experiment was laid out with unpaired t test design. The two treatments of control (manual weeding) and treatment (using intercultivator) were compared. Among the two treatments, using of intercultivator had positively influenced the growth and yield characters and number of cuttings and yield of Cumbu Napier Hybrid Grass in all the seasons. The maximum plant height, number of tillers hill- 1, fodder yield were recorded under the treatment of using intercultivaor. The fodder yield was lower in manual weeding (control) in all the seasons.