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Prosulfocarb Herbicide: Premium Pre-Emergence Weed Control for Cereals

Prosulfocarb (CAS No. 52888-80-9) is a selective thiocarbamate herbicide designed for pre-emergence and early post-emergence control of annual grassy weeds and some broadleaf weeds in cereals (wheat, barley, rye), potatoes, and onions. As a lipid synthesis inhibitor, it disrupts fatty acid biosynthesis in germinating weed seedlings, preventing root and shoot development. The 800g/L EC formulation offers high efficacy with reduced application volumes, trusted by commercial growers in Australia, Turkey, and Canada.

Technical Specifications

  • Active Ingredient: Prosulfocarb
  • Molecular Formula: C₁₄H₂₁NOS
  • Mode of Action: Inhibits lipid/fatty acid synthesis in germinating weeds
  • Formulation: 800g/L Emulsifiable Concentrate (EC)
  • Physical State: Light yellow to amber liquid
  • Solubility: 200 ppm in water; soluble in organic solvents
  • Vapor Pressure: 1.2×10⁻⁵ mmHg at 25°C
  • pH Range: 5.0–8.0 (stable in neutral conditions)

Mode of Action

  1. Selective Uptake: Absorbed by weed roots and coleoptiles during germination.
  2. Lipid Synthesis Blockade: Inhibits acetyl-CoA carboxylase, preventing very-long-chain fatty acid (VLCFA) formation.
  3. Developmental Arrest: Disrupts cell membrane formation, leading to seedling death before emergence.
  4. Crop Safety: Cereals metabolize prosulfocarb via glutathione conjugation, while weeds lack this detoxification pathway.

Application Guide

Crop Target Weeds Rate (L/ha) Application Method Key Comments
Wheat/Barley Annual ryegrass, wild oats 2.0–2.5 Pre-emergence spray (IBS) Apply to moist seedbed 0–7 days before sowing; requires 10 mm rainfall/irrigation to activate.
Wheat Ryegrass + broadleaf weeds 2.5 + 1.5 Tank mix with Trifluralin For ALS-resistant biotypes; use 1.5 L/ha Trifluralin 480 EC for expanded spectrum.
Potatoes Blackgrass, chickweed 3.0–4.0 Pre-plant incorporated Incorporate into top 5 cm soil before planting; ideal for sandy loam soils.
Application Best Practices
  • Soil Moisture: Apply when seedbed moisture is 15–25% (field capacity).
  • Incorporation: Use Incorporated-By-Sowing (IBS) or shallow tillage (2–5 cm) for optimal placement.
  • Tank Mixes: Compatible with diflufenican, pendimethalin, and metribuzin; jar-test before use.
  • Spray Parameters: Use 200–300 L/ha water volume; medium droplet size (250–350 μm).

Key Advantages

  1. Broad-Spectrum Grass Control: Effective against blackgrass, wild oats, and annual ryegrass.
  2. Early-Season Residual: 2–3 weeks of soil activity, matching cereal establishment.
  3. Tank Mix Flexibility: Enhances control when mixed with ALS inhibitors or PPO inhibitors.
  4. Crop Selectivity: Safe for wheat, barley, and rye when applied below seed zone.
  5. Low Environmental Impact: Soil half-life 14–21 days; minimal groundwater risk in clay soils.

Safety & Environmental Notes

  • Toxicity:
    • Low mammalian toxicity (LD₅₀ > 2000 mg/kg for rats).
    • Toxic to fish (LC₅₀ 0.5 mg/L); maintain 100 m buffer from water bodies.
  • Storage: Store at 5–30°C; protect from freezing or direct sunlight.
  • PPE Requirements: Wear chemical-resistant gloves, goggles, and long sleeves.

Packaging & OEM Services

  • Retail Packs: 1L, 5L HDPE bottles with child-resistant caps.
  • Bulk Packs: 20L drums, 1000L IBC totes for commercial growers.
  • Custom Solutions:
    • Private labeling with multilingual labels (English, Turkish, Chinese).
    • Formulation customization (EC, micro-encapsulated) for regional needs.
    • Regulatory support (MSDS, COA, MRL compliance).

FAQ for Professional Buyers

  1. Can Prosulfocarb control herbicide-resistant weeds?
    Yes, particularly against ALS-resistant ryegrass when tank-mixed with Group 3 herbicides (e.g., trifluralin).
  2. What is the pre-harvest interval (PHI)?
    PHI is 7–14 days for cereals; always check local regulations for crop-specific limits.
  3. Is Prosulfocarb compatible with no-till systems?
    Best in conventional tillage or reduced tillage; requires soil incorporation for efficacy in no-till.
  4. How to handle accidental spills?
    Absorb with inert material, place in sealed containers, and dispose per local hazardous waste regulations.
  5. Does Shengmao offer sample testing?
    Yes, free 1L samples available for field trials; contact sales for trial protocols.

Why Choose Shengmao Prosulfocarb?

  • High-Concentration Formulation: 800g/L EC reduces application costs by 20% vs. lower-rate products.
  • Global Registration Support: Expertise in EU, EPA, and APAC regulatory submissions.
  • Sustainable Manufacturing: ISO 9001-certified facility with reduced solvent emissions.

 

Contact us for bulk pricing, technical data sheets, or custom formulation inquiries – tailored solutions for distributors, co-ops, and large-scale agricultural operations.
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