The study was carried out in rainy season in 2015 at Ludhiana, India. Present study evaluated the effect of timing of brown manuring with Sesbania aculeata alone and its integration with herbicides on weed incidence and rice grain yield. Sesbania seed was broadcasted at time of rice sowing and brown manured using 2,4-D at 580 g/ha at 4- and 5-weeks age. BM plots had significantly lower weed density and biomass than without BM (sole rice). BM at 4 weeks was more effective in suppressing weeds than BM at 5 weeks age. Among weed control methods, sequential application of pendimethalin and bispyribac gave best weed control and highest rice grain yield. Combination treatments of BM (4 weeks) with pendimethalin and, sole rice with pendimethalin and bispyribac gave similar rice grain yield. It was concluded that BM has weed control potential equivalent to one post-emergence herbicide, however, for getting the highest rice productivity it must be used in combination with pre- and post-emergence herbicides.