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Recommended Herbicides for Rice Weeds

Category of Herbi- cideGeneric NameDialution (product per 16l of water)Rate of application (l/ha) Mode of Action *
 **Trade NameTime of Spraying (days after estab- lishment)
Pre-plant HerbicidesTia fenaci
Gluphosinate ammonium
One-shot herbicides (14)Pretilachlor 300g/l EC64-80ml1.6l0-3Inhibiton of Cell Division
**Sofit 30EC
Oxyfluorfen 240g/l EC4ml 2-3Protoporphyringen Oxidase Inhibitor
**Goal 2XL, Galigan0.3l
Pyrazosulfuron-ethyl 10% WP8.96-11.2g225g7-MarAcetolactate Synthase Inhibitor
Pretilachlor 300g/l+Pyribenzoxim 20g/l EC48-64ml1.25l10-JunInhibiton of Cell Division+ Acetolactate Synthase Inhibitor Inhibitor Inhibitor Inhibitor Inhibitor Inhibitor Inhibitor Inhibitor Inhibitor
**Solito 320EC
Propyrisulfuron 10% SC20ml0.5l14-JunAcetolactate Synthase Inhibitor
** Sumo
Bispyribac sodium 15g/l+Thiobencarb 900g/l OD60.8-76.8ml1.5l14-JulAcetolactate Synthase Inhibitor
Azim sulfuron 50% WG2.4-3.04g60g15-JulAcetolactate Synthase Inhibitor
Pyribenzoxim 50g/l EC20-25.6ml0.5l18-JulAcetolactate Synthase Inhibitor
**Pyanchor 5% EC
Bispyribac sodium 100g/l12-16ml300ml14-AugAcetolactate Synthase Inhibitor
Bispyribac sodium 40g/l SC+Metamifop 100g/l SC25-32ml625ml14-AugAcetolactate Synthase Inhibitor+ Acetyl CoA Carboxylase Inhibitor
Flucetosulfuron 10% w/w WG8g200g14-AugAcetolactate Synthase Inhibitor
** ??
Bispyribac sodium 20% WP8.96-11.2g225g18-OctAcetolactate Synthase Inhibitor
Penoxulam 240g/lSC4-5.12ml100ml18-OctAcetolactate Synthase Inhibitor
Fenoxaprop-p-ethyl 69g/l+Ethoxsulfuron 20g/l OD20-25.6ml0.5l14-21Acetyl CoA Carboxylase Inhibitor
**Tiller Gold
Grass Killers (04)Cyhalofop-butyl 100g/l EC80-102.4ml2.0l15-JulAcetyl CoA Carboxylase Inhibitor
**Clincher 10EC
Metamifop 10% EC52.8ml1250ml21-JulAcetyl CoA Carboxylase Inhibitor
** Matari
Quinclorac 250g/l SC32-40ml800ml15-AugUnknown MoA
** Facet
Fenoxaprop-p-ethyl 75g/l EW14.4-17.6ml350ml16-25Acetyl CoA Carboxylase Inhibitor
**Whip Super 7.5EW
Sedges and broad leaves killers (08)Cyclosulfamuron 10% WP10.08-12.48g250g25-DecAcetolactate Synthase Inhibitor
Ethoxysulfuron 15% WG3.2-14g80g14-21Acetolactate Synthase Inhibitor
Carfentrazone-ethyl 240g/l EC4.8-6.08ml120ml14-21Protoporphyringen Oxidase Inhibitor
**Affinity 24EC
Bensulfuron methyl 8.25%+Metsulfuron methyl1.75%10.08-12.48g250g25-DecAcetolactate Synthase Inhibitor
Flucetosulfuron 10%WG10.08-12.48g250g18-DecAcetolactate Synthase Inhibitor
Orthosulfamuron 50% WG6.08-7.52g150g15Acetolactate Synthase Inhibitor
MCPA 400g/l SL112-140.08ml2.8l21-28Synthetic Auxin (Growth Regulator)
MCPA 600g/l SL72-89.6ml1.8l21-28Synthetic Auxin (Growth Regulator)


(Source: Department of Agriculture, Pest Management Recommendations, 2015)

Application of a same herbicide or herbicides having similar mode of action, continuously in a same field may cause resistance

development of weeds against herbicides. Therefore, rotation of herbicides having different mode of actions to be practiced in order to manage resistance development  in weeds