Pretilachlor 35% 50% 80% Ew High Concentration, Low-Odor Herbicide for Direct-Seeded Rice

• Customization: Available
• CAS No.: 51218-49-6
• Formula: C17h26clno2
• Model NO.: Pretilachlor 35% 50% 80% EW
• EINECS: 257-104-3
• Appearance: Liquid
• Method of Application: Cauline Leaf Treatment
• Usage: Selective
• Composition: Organic
• Specific Conductivity: The Herbicide Transmitting
• Colour: Milky White to Light Brown Emulsion Liquid.
• Active Ingredient: Pretilachlor 35% 50% 80% Ew
• Other Names: Stomp, Prowl, Accotab, Pendimethaline
• Target Object: Annual Grasses and Broadleaf Weeds in Rice
• Formulations/Purity: Pretilachlor 35% 50% 80% Ew
• Label: Customized
• Application: Broadleaf Weeds and Grasses in Corn Fields.
• Support for Registration: Yes
• Transport Package: 100ml, 250ml, 500ml, 1L, 5L, 10L, 20L, 200L
• Specification: Standard Specifications or Customized
• Trademark: AGROWONDERFUL
• Origin: Shanghai, China
• HS Code: 3808939190
• Production Capacity: 10000metric Tons Per Year

Product Description

Product Description

Pretilachlor 50% EC, Pretilachlor Herbicide, Rice Herbicide, Pre-Emergence Herbicide, Grass Weed Control in Rice, Chloroacetamide Herbicide, Pretilachlor Supplier, Pretilachlor Manufacturer China, CAS 51218-49-6, Herbicide for Africa, Herbicide for South America, Rice Weed Management.

Specification

Category	Herbicide
Active Ingredient	Pretilachlor 35% 50% 80% EW
Appearance	Milky white to light brown emulsion liquid.
CAS Number	51218-49-6
EINECS Number	257-104-3
Molecular Formula	C17H26ClNO2
Molecular Weight	311.85 g/mol
Density	1.07 g/cm³ (approx.)
Chemical Name	2-Chloro-N-(2,6-diethylphenyl)-N-(2-propoxyethyl)acetamide
Flash Point	>100 °C (non-flammable typical)
Concentration	35% 50% 80% EW
Shelf Life	Typically 2 years when stored properly
Other Names	Sofit, Rifit, Gowon, Solnet, Gargil
Target Object	Annual grasses and broadleaf weeds in rice (especially Echinochloa crus-galli)
Mode of Action	Inhibition of very-long-chain fatty acid (VLCFA) synthesis, disrupting cell division and seedling growth (Group K3 / 15 herbicide).
Synergistic Blending Guide	Pyrazosulfuron-ethyl, Bensulfuron-methyl, Fentrazamide, Cinmethylin, Propanil, 2,4-D, Metsulfuron-methyl
Core Principle of Blending	Broadening the weed control spectrum (grasses + sedges + broadleaves) and extending the application window.

Product Form	Concentration	Application Method	Target Use	Recommended Mix Partners
Wettable Powder	Pretilachlor40% WP,Pretilachlor33%+Pyrazosulfuron-ethyl2% WP	Spray application after mixing with water	Pre-emergence control of annual grasses and broadleaf weeds in direct-seeded and transplanted rice.	Pyrazosulfuron-ethyl 10% WP (1:1); Bensulfuron-methyl 0.5% WP (1:0.02)
Wettable Powder	Pretilachlor36%+Bensulfuron-methyl4% WP,Pretilachlor24%+Bensulfuron-methyl4%+Clomazone10% WP	Spray application after mixing with water	Broad-spectrum control of grasses, sedges and broadleaf weeds in rice fields.	Oxadiazon 50% WP (1:1); Butachlor 50% WP (1:1.2)
Capsule Suspensions	Pretilachlor30%+Oxadiargyl5% CS,Pretilachlor30.8%+Penoxsulam1.2% CS	Direct spray or tank mixing	Extended control of grasses and hard-to-control weeds in rice.	Oxadiargyl 20% SC (1:1); Fentrazamide 40% SC (1:1)
Capsule Suspensions	Pretilachlor35.3%+Bensulfuron-methyl4.7% CS,Pretilachlor40%+Oxaziclomefone20% CS	Direct spray or tank mixing	Full-season control of complex weed spectrum in rice.	Pyrazosulfuron-ethyl 10% WG (1:0.5); Penoxsulam 2.5% OD (1:0.1)
Granule	Pretilachlor5% GR,Pretilachlor4.9%+Penoxsulam0.1% GR	Direct broadcasting into paddy water	Pre-emergence control of weeds in flooded rice fields.	Pyrazosulfuron-ethyl 0.5% GR (1:0.1); Butachlor 5% GR (1:1)
Granule	Pretilachlor5.4%+Pyrazosulfuron-ethyl0.6% GR,Pretilachlor4.4%+Mesotrione0.6% GR	Direct broadcasting into paddy water	Control of grasses, sedges and broadleaf weeds in rice.	Bensulfuron-methyl 0.5% GR (1:0.1); Oxadiazon 5% GR (1:1)
Granule	Pretilachlor0.54%+Penoxsulam0.04%+Pyrazosulfuron-ethyl0.02% GR	Direct broadcasting into paddy water	Full-season control of complex weed spectra in rice.	Butachlor 5% GR (1:2); Oxadiargyl 2% GR (1:1)
Microemulsion	Pretilachlor85% ME,Pretilachlor31%+Oxyfluorfen9% ME,Pretilachlor30%+Oxadiazon10% ME	Spray application after dilution in water	Pre-emergence control of weeds in rice with high efficacy.	Oxadiazon 25% EC (1:1); Oxyfluorfen 25% EC (1:1)
Microemulsion	Pretilachlor15%+Oxadiazon7%+Oxyfluorfen12% ME,Pretilachlor30%+Clomazone12%+Oxadiazon12% ME	Spray application after dilution	Broad-spectrum control of grasses and broadleaf weeds in rice and field crops.	Pyrazosulfuron-ethyl 10% WG (1:0.5); Bensulfuron-methyl 0.5% WP (1:0.05)
Emulsion in Water	Pretilachlor50% EW,Pretilachlor27.5%+Oxadiargyl5%+Oxyfluorfen7% EW	Spray application after dilution	Control of grasses and broadleaf weeds in rice and field crops.	Clomazone 50% EC (1:1.5); Pyrazosulfuron-ethyl 10% WG (1:0.3)
Emulsion in Water	Pretilachlor45%+Oxadiazon15% EW,Pretilachlor33%+Pyraclonil3% EW	Spray application after dilution in water, applied at the pre-emergence to early post-emergence stage in rice fields.	Enhanced control of annual weeds, particularly effective on Echinochloa crus-galli, in rice.	Penoxsulam 2.5% OD (1:0.1); Butachlor 50% EC (1:1)
Emulsifiable Concentrate	Pretilachlor30% EC,Pretilachlor500g/l EC	Spray application after dilution	Pre-emergence control of annual grasses and broadleaf weeds in rice.	Clomazone 50% EC (1:1); Oxadiargyl 20% SC (1:1)
Emulsifiable Concentrate	Pretilachlor30%+Clomazone12%+Oxadiargyl6% EC,Pretilachlor32%+Oxadiazon11%+Oxyfluorfen9% EC	Spray application after dilution	Broad-spectrum control of complex weed flora in rice.	Pyrazosulfuron-ethyl 10% WG (1:0.5); Bensulfuron-methyl 0.5% WP (1:0.05)
Emulsifiable Concentrate	Pretilachlor36%+Clomazone24.5%+Flumioxazin1.5% EC,Pretilachlor15%+Metamifop12%+Cyhalofop-butyl18% EC	Spray application after dilution	Extended residual control of weeds in rice and other crops.	Oxadiazon 50% WP (1:1); Oxyfluorfen 25% EC (1:1)
Emulsifiable Concentrate	Pretilachlor20%+Oxyfluorfen8%+Simetryn12% EC,Pretilachlor32%+Oxadiazon11%+Oxyfluorfen9% EC	Spray application after dilution	Broad-spectrum control of weeds in rice and field crops.	Pyrazosulfuron-ethyl 10% WG (1:0.5); Butachlor 50% EC (1:1)
Oil Dispersion	Pretilachlor60% OD,Pretilachlor21%+Pyriminobac-methyl1.5%+Oxyfluorfen7.5% OD	Spray application after dilution	Control of grasses, sedges and broadleaf weeds with enhanced efficacy.	Pyriminobac-methyl 5% OD (1:0.25); Penoxsulam 2.5% OD (1:0.05)
Oil Dispersion	Pretilachlor35%+Pyriminobac-methyl3% OD,Pretilachlor36%+Bensulfuron-methyl4% OD	Spray application after dilution	Broad-spectrum control of weeds in rice, including resistant biotypes.	Oxadiazon 50% WP (1:1); Butachlor 50% EC (1:1)
Oil Dispersion	Pretilachlor40%+Penoxsulam2% OD,Pretilachlor20%+Atrazine20%+Nicosulfuron2% OD	Spray application after dilution	Control of weeds in rice and corn with multiple modes of action.	Atrazine 50% WP (1:1); Nicosulfuron 4% OD (1:0.5)
Technical Material	Pretilachlor95% TC,Pretilachlor98% TC	For manufacturing use only	Serves as a technical concentrate for producing various end-use formulations.	Pyrazosulfuron-ethyl 95% TC (1:1); Bensulfuron-methyl 96% TC (1:0.1)

Detailed Pictures

Pretilachlor 80% EW represents the next generation of this essential rice herbicide. The advanced EW (Emulsion, Oil in Water) formulation combines high efficacy with significantly improved user and environmental safety, making it the superior choice for modern, professional rice farming.

Value Proposition for Importers & Commercial Farms:

High Concentration for Maximum Efficiency: At 80% active ingredient, it offers one of the highest loads available. This drastically reduces the volume needed per hectare, slashing shipping, storage, and handling costs.

EW Formulation: Safer & More Advanced: As a water-based emulsion, it contains far less organic solvent than traditional ECs. This means low odor, reduced risk of eye/skin irritation for operators, lower environmental impact, and improved tank mix compatibility.
Built-in Safener for Crop Security: Formulated with a dedicated safener, it provides enhanced safety for rice seedlings, especially critical in vulnerable direct-seeded rice systems, giving farmers greater peace of mind.
Superior Early-Season Control: Creates a potent, persistent barrier in the soil, stopping grass and sedge weeds as they germinate for 4-6 weeks, protecting the crop during its most competitive phase.
Market Differentiation: Supplying the EW formulation positions you as a provider of modern, responsible agrotechnology, appealing to buyers with higher safety and environmental standards.

Mixing, Dosage & Critical Usage Instructions

Dosage Rate: 0.625 - 0.9375 L/ha (equivalent to 500-750 g a.i./ha). Always follow locally registered label rates. Lower volume per hectare due to high concentration.

Critical Application Timing:

Direct-Seeded Rice: Apply pre-emergence (0-3 days after sowing) on well-prepared, moist soil.
Transplanted Rice: Apply within 2-5 days after transplanting.
Water Management is KEY to Success:

Ensure field is well-puddled and leveled.
Apply to saturated soil or into 2-3 cm of standing water.
Maintain 3-5 cm of standing water for at least 3-5 days after application. Do not drain.

Application Scenarios

FAQ

Q1: What is the main difference between EW and EC formulations?
A: EC is an emulsifiable concentrate dissolved in organic solvents. EW is an oil-in-water emulsion, meaning the active ingredient is dispersed in tiny oil droplets within a water-based continuous phase. This makes EW lower in odor, less irritating, and more environmentally friendly while maintaining high efficacy.

Q2: Is the safener included in the 80% concentration?
A: Yes. The stated 80% concentration is for the active ingredient Pretilachlor. The formulation includes a separate, effective dose of a safener (such as Fenclorim). This is a critical component for crop safety and is always included in our commercial product.

Q3: Why choose the 80% EW over a standard 50% EC?
A: Three reasons: 1) Cost-Efficiency: 80% concentration means ~35% less volume to ship, store, and handle per hectare. 2) Enhanced Safety: EW is a safer, more modern formulation for users and the environment. 3) Market Preference: Progressive markets and large farms increasingly prefer advanced formulations like EW.

Q4: Can this be used in rice-fish co-culture systems?
A: ABSOLUTELY NOT. Pretilachlor is highly toxic to fish. It must never be used in fields or water systems containing fish, shrimp, or other aquatic life. This is a critical label restriction.

Q5: What is the MOQ and typical lead time?
A: Standard MOQ is one 20-foot container. Lead time is 25-35 days after order confirmation. We provide FOB/CIF quotes to all major ports and handle all export documentation.