Transplanted Puddled Lowland Rice Major Weeds:

Grasses

Echinochloa colona	Echinochloa crus-galli	Chloris barbata

Panicum sp	Cynodon dactylon	Leptochloa chinensis
Image Source: www.agritech.tnau.ac.in

Sedges

Cyperus difformis	Cyperus iria	Fimbristylis milliacea
Image Source: www.agritech.tnau.ac.in, Dr.R.Jagannathan, Professor of Agronomy, TNAU, Coimbatore-3.

Mainfield : Weed management

Pre emergence application (PE) of Pretilachlor @ 750 g/ha at 3 DAT followed by early post emergence application of Chlorimuron methyl + Metsulfuron methyl @ 4 g/ha on 25 DAT.
PE Pyrazosulfuron ethyl @ 20 g ha-1 on 3 DAT + Hand weeding (HW) on 45 DAT.
PE butachlor 0.75 kg ha-1 + bensulfuron methyl 50 g ha-1 on 3 DAT + HW on 45 DAT
PE butachlor 0.75 kg ha-1 + bensulfuron methyl 50 g ha-1 on 3 DAT followed by mechanical weeding on 45 DAT.
PE application of Butachlor @ 1.0 kg /ha on 3 DAT + Finger type single row or double row rotary weeder weeding on 45 DAT.
Early POE application of Bispyribac sodium 40 g ha-1 (2-3 leaf stage of weeds) + Hand weeding on 45 DAT.
Post emergence application (POE) of 2,4-D sodium salt 1.25 kg/ha on three weeks after transplanting.