Metham Sodium 42% SL (CAS 137-42-8) - High-Efficiency Soil Fumigant for Agricultural Pest Control | Professional Grade Liquid Herbicide Formulation
Product Area
Product Name: Metham Sodium 42% SL (CAS 137-42-8)
Tagline: Advanced Soil Fumigant for Comprehensive Disease and Pest Control
Key Advantages:
Rapid-acting broad-spectrum soil sterilizer against fungi, nematodes, and weeds
Ideal for pre-planting soil treatment in high-value crops
Fast degradation into non-toxic byproducts for safer residue management
Product Overview
Metham Sodium 42% SL is a liquid soil fumigant formulated to eradicate soil-borne pathogens, nematodes, and weed seeds. When applied, it hydrolyzes to release methyl isothiocyanate (MITC), a potent bioactive gas that penetrates soil pores for uniform sterilization. Designed for modern farming systems, it ensures clean, disease-free soil for sustainable crop production.
Features and Benefits
Broad-Spectrum Efficacy: Controls fungi, nematodes, weed seeds, and soil insects.
Rapid Soil Penetration: Liquid formulation ensures even distribution and deep soil reach.
Residue-Free: Degrades quickly into harmless compounds, minimizing environmental impact.
Cost-Effective: Reduces reliance on multiple pesticides, lowering input costs.
User Safety: Low-odor formulation compared to traditional fumigants.
Applications
Target Crops:
Vegetables (tomatoes, potatoes, cucumbers)
Strawberries, grapes, and fruit orchards
Nurseries and greenhouse crops
Tobacco and ornamental plants
Target Pests/Diseases:
Fungal Pathogens: Fusarium spp., Verticillium spp., Pythium spp.
Nematodes: Root-knot nematodes (Meloidogyne spp.), cyst nematodes
Weed Seeds: Suppresses germination of annual weeds
Application Methods:
Soil Injection: Pre-planting injection using specialized equipment.
Drip Irrigation: Compatible with drip systems for greenhouse use.
Water Dilution: Apply 200-500 L diluted solution per hectare, followed by soil covering.
Technical Specifications
Active Ingredient: Metham Sodium
Concentration: 42% SL (Soluble Liquid)
CAS Number: 137-42-8
Physical Properties:
Appearance: Clear to pale yellow liquid
Solubility: Fully miscible in water
pH: 8.0–9.5 (as supplied)
Usage Instructions
Application Rate:
Field Crops: 75–150 L/ha (diluted in 200–500 L water)
Greenhouses: 20–40 g/m² (post-dilution)
Steps for Application:
Prepare soil by tilling to 20–30 cm depth.
Dilute Metham Sodium 42% SL with water as directed.
Inject or drench soil uniformly.
Cover soil with gas-retentive tarps for 48–72 hours.
Aerate soil for 7–14 days before planting.
Safety Information
⚠️ Critical Precautions:
Wear PPE: chemical-resistant gloves, goggles, respirator, and coveralls.
Avoid inhalation of fumes; apply in well-ventilated areas.
Pre-Planting Interval: Minimum 14 days after application.
Storage: Keep in original container, away from heat and direct sunlight.
Disposal: Rinse containers thrice and puncture before disposal.
Product Performance
Field Trials: 90–95% reduction in root-knot nematode populations in tomato fields.
Cost-Benefit: Increases yield by 25–40% in fumigated strawberry crops.
User Testimonial: "Metham Sodium resolved our chronic Fusarium wilt issue in cucumbers within one season." – Farm Manager, Spain
FAQ
Q: Can it be used in organic farming?
A: No-Metham Sodium is a synthetic fumigant and not approved for organic systems.
Q: How long does the fumigation effect last?
A: Provides protection for 3–6 months, depending on soil type and moisture.
Q: Is it safe for subsequent crops?
A: Yes, after proper aeration. Conduct a germination bioassay before planting.
Q: What crops are sensitive to residues?
A: Avoid planting leafy greens or root crops immediately after treatment.
Related Products
Chloropicrin-Based Fumigants: For synergistic pest control.
Biofumigants: Mustard seed meal for organic systems.
Nematicides: Carbofuran alternatives for post-planting use.
Environmental & Regulatory Compliance
EPA Registered: Meets global standards for soil fumigants.
Ecological Impact: Low risk to groundwater when used as directed.
Resistance Management: Rotate with non-fumigant pesticides for long-term efficacy.
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