A field study was conducted during 2021 and 2022 seasons at Sakha Agricultural Research Station, Kafr Elsheikh, Egypt to investigate the management of accompanied weeds to Sakha 109 new released rice cultivar under transplanting cultivation. Six weed management treatments included thiobencarb 50% (2.38 kg ai ha^-1) (W₁), ready-made of penoxsulam 1.6% (0.0343 kg ai ha^-1) + triclopyr-butotyl 12% ( 0.257 kg ai ha^-1) (W₂), penoxsulam 24% (0.0286 kg ai ha^-1) (W₃), hand weeding twice at 20 and 40 days after transplanting (W₄), Un-treated plots (W₅) and weed free (W₆) were randomly tested in Randomized Complete Block Design with three replications. Results showed that W₂ as ready-made herbicide surpassed other chemical and manual control treatments and achieved the highest reduction in dry weights of grasses, sedges, broad-leaf weeds (BLW) and total weeds in addition to the highest values of weed control efficiency (WCE) for grasses, sedges, BLW and total weeds in both seasons. While, the highest dry biomass of rice, grain yield and its attributes of rice were obtained by W₂ in both seasons, moreover reduced yield losses in both seasons. The lowest rice dry weight, yield attributes and grain yield of rice were recorded under weedy check treatments in 2021 and 2022 seasons, in addition to lowest WCE and highest yield losses in both seasons. Based on obtained results under transplanted rice, it could be concluded that using ready-made of penoxsulam + triclopyr-butotyl at recommended doses achieved the best weed control, minimize yield losses and improve rice grain yield.