| Weed Management for Different Crops |
| Crop | Chemical Name | Dose/ha | Trade Name | Dose /ha | Time of Application |
| Transplanted rice | Bensulfuron methyl | 60 g | Londax 60% DF | 100 g | 3 DAT |
| Pyrazosulfuron ethyl | 30 g | Sathi 10% WP | 300 g | 3 DAT |
| Bensulfuron methyl + Butachlor 1.0 kg | 50 g + 1.0 kg | Londax 60% DF + Weedar 50% EC | 85 g + 2.0 L | 3 DAT |
| Chlorimuron ethyl + metsulfuron methyl | 4 g | Almix 20% WP | 20 g | 20 DAT |
| Butachlor +(Chlorimuron ethyl + metsulfuron methyl) | 1.25 kg + 4 g | Weedar 50% EC + Almix 20% WP | 2.50 L +20 g | 3 DAT + 20 DAT |
| Butachlor +finger type single row or double row rotary weeder | 1.0 kg | Weedar 50% EC | 2.0 L | 3 DAT + 45 DAT |
| Butachlor +Hand weeding | 1.0 kg | Weedar 50% EC | 2.0 L | 3 DAT + 35 DAT |
| Transplanted rice-rice system | Butachlor +Hand weeding | 1.0 kg | Weedar 50% EC | 2.0 L | 3 DAT + 35 DAT |
| Butachlor + 2,4-DEE for kharif & Pritilachlor + 2,4-DEE for rabi with 75% inorganic & 25% organic nitrogen source management | 0.75 kg +0.4 kg & 0.75 kg +0.4 kg | Weedar 50% EC + Fernoxone 80% WP &Rift 50% EC + Fernoxone 80% WP | 1.5 L + 0.5 kg & 1.5 L +0.5 kg | 3 DAT + 20 DAT & 3 DAT + 20 DAT |
| System of Rice Intensification (SRI) | Pyrazosulfuron ethyl + rotary weeder weeding | 30 g | Sathi 10% WP | 300 g | 3 DAT + 40 DAT |
| Direct wet seeded rice | Pritilachlor + Hand weeding | 0.75 kg | Rift 50% EC | 1.5 L | 8 DAS + 45 DAS |
| Pyrazosulfuron | 25 g | Sathi 10% WP | 250 g | 3 DAS |
| Metamifop | 100 g | Goalchem10% EC | 1.0 L | 15 DAS |
| Pretilachlor S + roto cylindrical weeder weeding | 0.45 kg | Sofit 30.7% EC | 1.5 L | 3 DAS + 45 DAS |
| Pretilachlor S + finger type double row rotary weeder | 0.45 kg | Sofit 30.7% EC | 1.5 L | 3 DAS + 45 DAS |
| Drum seeded rice intercropped with dhaincha | Butachlor + Hand weeding | 1.0 kg | Weedar 50% EC | 2.0 L | 8 DAS + 45 DAS |
| Pretilachlor S + Hand weeding | 0.45 kg | Sofit 30.7% EC | 1.5 L | 3 DAS + 35 DAS |
| Semidry rice | Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS + 30 DAS |
| Aerobic rice | Pendimethalin + single tyne sweep weeder weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS + 45 DAS |
| Irrigated maize | Atrazine + HW | 0.5 kg | Atratop 50% WP | 1.0 kg | 3 DAS + 45 DAS |
| Atrazine + HW or twine wheel hoe weeder weeding | 0.5 kg | Atratop 50% WP | 1.0 kg | 3 DAS + 45 DAS or 25 & 45 DAS |
| Oxyfluorfen + twin wheel hoe weeding | 0.2 kg | Goal 23.5% EC | 0.85 L | 3 DAS + 45 DAS |
| Rainfed maize | Atrazine + Metolachlor | 0.125 + 0.50 kg | Atratop 50% WP+ Dual 50% EC | 0.25 kg + 1.0 L | 3 DAS |
| Maize + Turmeric cropping system | Pendimethalin + Atrazine | 0.75 kg + 0.50 kg | Stomp 30% EC + Atratop 50% WP | 2.5 L + 1.0 kg | 3 DAS |
| Metolachlor or Pendimethalin or Atrazine | 1.0 kg or 1.0 kg or 0.25 kg | Dual 50% EC or Stomp 30% EC or Atratop 50% WP | 2.0 L or 3.3 L or 0.50 kg | 3 DAS |
| Sorghum | Alachlor + Hand weeding | 1.0 kg | Lasso 50% EC | 2.0 L | 3 DAS + 45 DAS |
| Atrazine + Hand weeding | 0.25 kg | Atratop 50% WP | 0.50 kg | 3 DAS + 45 DAS |
| Winter irrigated cotton | Trifloxysulfuron with adjuvant or Fluchloralin | 10 g or 1.0 kg | Monument 75WG or Basalin 45% EC | 13.3 g or 2.2 L | 12 DAS |
| Oxyflourfen or metolachlor followed by one HW | 0.2 kg or 1.0 kg | Goal 23.5% EC or Dual 50% EC | 0.85 L or 2.0 L | 3 DAS + 40 DAS |
| Pendimethalin + Hand Weeding | 2.0 kg | Extra 38.7% CS | 5.17 L | 3 DAS + 45 DAS |
| PE Pendimethalin | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS |
| Irrigated groundnut | Oxyfluorfen + Hand weeding | 250 g | Goal 23.5% EC | 1 L | 3 DAS + 45 DAS |
| Imazethapyr + Earthing up | 200 g | Pursuit 10% SL | 2 L | 15 DAS + 45 DAS |
| Pendimethalin + Hand weeding and earthing up + lay by application of Pendimethalin 0.75 kg a.i./ha on 40 DAS | 0.75 kg | Stomp 30% EC | 2.5 L | 3 DAS + 45 DAS |
| Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS + 45 DAS |
| Sunflower | Glyphosate with activator AG-F at 0.5 lit/ha | 1.5 kg | Roundup 41% SL | 4.8 L | Pre plant application |
| Hand weedig or manually operated weeder weeding + HW on 45 DAS | | | | 25 + 45 DAS or 25 + 45 DAS |
| Sesame | Pendimethalin + Hand weeding | 0.75 kg | Stomp 30% EC | 2.5 L | 3 DAS + 25 DAS |
| Alachlor + Hand weeding | 1.0 kg | Lasso 50% EC | 2.0 L | 3 DAS + 35 DAS |
| Soybean | Imazethapyr + Earthing up | 100 g | Pursuit 10% SL | 1.0 L | 15 DAS + 45 DAS |
| Metolachlor | 1.0 kg | Dual 50% EC | 2.0 L | 3 DAS |
| Pendimethalin | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS |
| Sugarcane | Atrazine + HW and earthing up | 1.0 kg | Atratop 50% WP | 2.0 kg | 3 DAP + 60 DAP |
| Sugarbeet | Pretilachlor or Metamitron | 0.50 kg or 3.50 kg | Rift 50% EC or Goltix 70 SC | 1.0 L or 5 L | 3 DAS or three splits at 2, 4-6 & 8-10 weed leaf stages |
| Tomato | Pendimethalin | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAT |
| Metribuzin + Hand weeding | 0.50 kg | Sencor 70% WP | 0.70 kg | 3 DAT + 45 DAT |
| Brinjal | Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAT + 30 DAT |
| Fluchloralin + Hand weeding | 1.0 kg | Basalin 45% EC | 2.2 L | 12 DAS + 30 DAT |
| Chillies | Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAT + 30 DAT |
| Fluchloralin + Hand weeding | 1.0 kg | Basalin 45% EC | 2.2 L | 3 DAT + 30 DAT |
| Onion | Propiquizafop | 100 g | Agil 10 EC | 1.0 L | 3 DAS |
| Oxadiargyl | 75 g | Top Star 80% WP | 90 g | 3 DAS |
| Quizalofop ethyl | 50 g | Targa super 5% EC | 1.0 L | 15 DAS |
| Bhendi | Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS + 30 DAS |
| Fluchloralin + Hand weeding | 1.0 kg | Basalin 45% EC | 2.2 L | 3 DAS + 30 DAS |
| COLE CROPS (Cabbage and Cauliflower) | Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAT + 40 DAT |
| Fluchloralin + Hand weeding | 1.0 kg | Basalin 45% EC | 2.2 L | 3 DAT + 40 DAT |
| Carrot | Fluchloralin | 1.0 kg | Basalin 45% EC | 2.2 L | 3 DAT |
| Pritilachlor | 0.50 kg | Rift 50% EC | 1.0 L | 3 DAT |
| Beans | Fluchloralin + Hand weeding | 1.0 kg | Basalin 45% EC | 2.2 L | 3 DAT + 30 DAT |
| Radish | Fluchloralin + Hand weeding | 1.0 kg | Basalin 45% EC | 2.2 L | 3 DAT + 30 DAT |
| Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAT + 30 DAT |
| Alachlor + Hand weeding | 1.5 kg | Lasso 50% EC | 3.0 L | 3 DAT + 30 DAT |
| Metolachlor | 1.0 kg | Dual 50% EC | 2.0 L | 3 DAT + 30 DAT |
| Peas | Alachlor | 1.0 kg | Lasso 50% EC | 2.0 L | 3 DAT |
| Garlic | Fluchloralin + Hand weeding | 1.0 kg | Basalin 45% EC | 2.2 L | 3 DAS + 40 DAS |
| Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS + 40 DAS |
| Cucurbits | Oxyfluorfen | 250 g | Goal 23.5% EC | 1 L | 3 DAS |
| Cumin/ Fengreek / Coriander | Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS + 40 DAS |
| Fluchloralin | 1.0 kg | Basalin 45% EC | 2.2 L | Preplant incorporation |
| Turmeric | Pendimethalin + Hand weeding | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAS + 45 DAS |
| Alachlor + Hand weeding | 1.0 kg | Lasso 50% EC | 2.0 L | 3 DAS + 45 DAS |
| Tea | Oxyfluorfen | 400 g | Goal 23.5% EC | 1.7 L | 3 DAS |
| Potato | Oxyfluorfen + Hand weeding | 400 g | Goal 23.5% EC | 1.7 L | 3 DAP + 30 DAP |
| Banana & Grapes | Glyphosate | 2.0 kg | Roundup 41% SL | 4.8 L | 25 DAP |
| Coconut | Paraquat | 1.0 kg | Gramaxone 24 % SL | 4.0 L | 2-3 leaf stage of weeds |
| Glyphosate+ Ammonium sulphate | 10 ml (Commercial product) + 20 g/lit of water | Roundup 41% SL | 10 ml (Commercial product) | pre flowering stage |
| Problematic weed management |
| a. Cynodon dactylon & Cyperus rotundus | Glyphosate+ AGF activator | 4.1 g + 2 ml/lit of water | Roundup 41% SL | 10 ml (Commercial product) | pre flowering stage |
| Under non crop situation, | Glyphosate + Ammonium sulphate | 2.05 kg + 2 % | Roundup 41% SL | 5.0 L + 2 % | pre flowering stage |
| Parasitic weed management |
| Striga management in Sugarcane | Atrazine + Hand weeding + earthing up combined + 2,4-D sodium salt + urea + trash mulch | 1.0 kg+ 5 g/litre (0.5%) + urea 20 g/litre (2%) | Atratop 50% WP + Fernoxone 80% WP | 2.0 kg + 5 g/litre (Commercial product) | 3 DAP + 45 DAP + 60 DAP + 90 DAP + 150 DAP |
| Orabanche in tobacco | Pendimethalin | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAT |
| Fluchloralin | 1.0 kg | Basalin 45% EC | 2.2 L | Pre-plant incorporation |
| Imazethapyr | 30 g | Pursuit 10% SL | 300 ml | 55 DAT |
| Neem cake | 200 kg | | 200 kg | Plant hole application at 30 DAT |
| Cuscuta | Hand removal & Paraquat | 0.80 kg | Gramoxone 24% SL | 3.3 L | 20 DAS |
| Pendiemthalin | 1.0 kg | Stomp 30% EC | 3.3 L | 3 DAT |
| Solanum elaeagnifolium | Glyphosate alone or in combination with 2-4, D Na salt | 1.75 kg +2.0 kg/ha | Roundup 41% SL + Fernoxone 80% WP | 4 L + 2.5 kg | 25 DAT |
| Glyphosate + 2,4-D + soap solution | 4.1 g + 6 g + 2 ml/lit of water | Roundup 41% SL + Fernoxone 80% WP | 10 ml + 6 g (Commercial product) + 2 ml/lit of water | 25 DAT |
| Water hyacinth | Glyphosate + Ammonium sulphate + surfactant | 4.1 g + 20 g + 1 ml/lit of water | Roundup 41% SL | 10 ml + 20 g (Commercial product) + 2 ml/lit of water | 25 DAT |
| Source: AICRP- Weed Control | | | Updated on Nov, 2014 | | |
| Department of Agronomy | | | | | |
| TNAU, Coimbatore | | | | | |
