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Bensulfuron-methyl is a selective systemic sulfonylurea herbicide for paddy fields. It efficiently controls barnyard grass, Chinese sprangletop, water plantain, dwarf arrowhead, and other broadleaf weeds. Available in WP and WDG formulations with high crop safety.
Ingredient Content:Bensulfuron Methyl 10% WP/20% WP/60% WDG
Product Appearance:Off-white powder or granules
Update Time:2025-08-18
Visit Volume:38
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Product Name: Bensulfuron-methyl
CAS Number: 83055-99-6
Molecular Formula: C₁₆H₁₈N₄O₇S
Molecular Weight: 410.40
Bensulfuron-methyl is a selective systemic herbicide designed for paddy fields. Belonging to the sulfonylurea class, it inhibits acetolactate synthase (ALS) in weeds, blocking branched-chain amino acid biosynthesis, which stops weed growth and leads to death.
It effectively controls annual and some perennial broadleaf weeds, including:
Grasses: Echinochloa crus-galli (barnyard grass), Leptochloa chinensis (Chinese sprangletop)
Broadleaf weeds: Sagittaria pygmaea (dwarf arrowhead), Alisma plantago-aquatica (water plantain), Rotala indica (Indian rotala)
| Product | Active Ingredient | Formulation | Packaging |
|---|---|---|---|
| Bensulfuron-methyl 10% WP | 10% | Wettable Powder (WP) | 100g / 500g |
| Bensulfuron-methyl 60% WDG | 60% | Water-Dispersible Granule (WDG) | 50g / 100g |
| Bensulfuron-methyl 20% WP | 20% | Wettable Powder (WP) | 100g / 500g |
| Crop/Scenario | Target Weeds | Dosage & Concentration | Application Method |
|---|---|---|---|
| Paddy fields | Echinochloa crus-galli, Sagittaria pygmaea, Alisma plantago-aquatica, Rotala indica, etc. | 10% WP: 150–200g/mu; 60% WDG: 25–35g/mu | Uniform broadcasting 5–10 days after transplanting |
| Farm ditches & edges | Broadleaf weeds, aquatic weeds | 50% of above dosage | Uniform spraying |
Tip: Keep a shallow water layer (3–5cm) for 3–5 days after application for optimal efficacy.
Appearance: Off-white powder or granules
pH (1% aqueous solution): 5.0–8.0
Melting Point: 165–170℃
Water Solubility: Low, easily dispersible
Stability: Stable at room temperature; decomposes in strong acids
Highly selective and safe for most crops
Rapid action with quick onset
Can be mixed with other herbicides to expand control spectrum and delay resistance
Effective against some resistant weeds
Moderately toxic to fish; prevent herbicide from entering water bodies
Store in a cool, dry, well-ventilated area, away from fire and children
Wear protective equipment to avoid inhalation or skin contact
