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Thiophanate-Methyl 70% WP Fungicide

Thiophanate-methyl is a powerful systemic fungicide belonging to the benzimidazole class, widely used for both preventive and curative control of a broad range of fungal diseases. Its strong efficacy and systemic action make it an essential tool in modern agriculture, particularly for high-value crops such as fruit trees, vegetables, rice, wheat, peanuts, and cotton.

At Shengmao, we offer premium-grade Thiophanate-methyl in multiple formulations—70% WP, 50% WP, and 97% TC—with full OEM & ODM support

Product Overview

Feature Description
Product Name Thiophanate-methyl Fungicide
Active Ingredient Thiophanate-methyl
Chemical Class Benzimidazole
CAS Number 23564-05-8
Molecular Formula C₁₂H₁₄N₄O₄S₂
Formulations 70% WP, 50% WP, 97% TC
Application Methods Foliar spray, seed treatment
Target Diseases Sheath blight, rice blast, scab, powdery mildew, black spot, leaf mold
Applicable Crops Rice, wheat, cotton, peanuts, tomatoes, melons, apple, pear, sweet potato
Shelf Life 2 years (under proper storage)
Regulatory Documents COA, MSDS, ISO, SGS available

Mode of Action & Biological Efficacy

Thiophanate-methyl is metabolized into methyl benzimidazole carbamate (MBC) inside plants. This metabolite inhibits fungal mitosis by disrupting spindle formation during cell division, preventing the spread of fungal spores and stopping active infections.

Key Benefits:

  • Systemic Movement: Translocates via xylem and adjacent tissues to protect new growth.

  • Preventive & Curative: Controls surface infections and internal mycelium development.

  • Broad-Spectrum Activity: Effective against ascomycetes, basidiomycetes, and deuteromycetes.

  • Resistance Management: Acts on multiple pathways, reducing resistance risk.

Application & Recommended Dosage

Crop Target Disease Dosage Application Method
Rice Sheath blight, rice blast 1500–2145 g/ha Foliar spray
Wheat Scab 1065–1500 g/ha Foliar spray
Pear Scab 1600–2000 times dilution Foliar spray
Apple Ring disease 1000 times dilution Foliar spray
Tomato Leaf mold 540–810 g/ha Foliar spray
Melon Powdery mildew 480–720 g/ha Foliar spray
Sweet Potato Black spot 1600–2000 times dilution Seed soaking

Application Timing:

  • Begin application at early crop stages or first disease symptoms.

  • Repeat every 7–14 days depending on disease pressure.

Best Practices:

  • Ensure complete leaf and canopy coverage.

  • Avoid spraying under intense sunlight or right before rainfall.

  • Follow local PHIs (Pre-Harvest Intervals): typically 7–14 days.

Advantages & Technical Highlights

1. Broad-Spectrum Control

Controls a wide array of fungal pathogens, including:

  • Rice: Sheath blight, rice blast

  • Fruits: Scab, ring disease

  • Vegetables: Leaf mold, powdery mildew

  • Wheat & Peanuts: Fusarium diseases

2. Systemic, Long-Lasting Protection

Moves inside plant tissues to protect both treated and newly emerging parts.

3. Dual Action – Preventive & Curative

Mitotic disruption ensures both early intervention and control of active infections.

4. Resistance Management

Multi-site activity helps delay resistance buildup in pathogen populations.

5. Wide Crop Compatibility

Suitable for cereals, fruits, vegetables, and root crops.

6. Crop Vigor Enhancement

Promotes healthy foliage and improved yield by protecting critical growth stages.

Formulations, Packaging & OEM Services

Formulation Types:

  • 70% WP (Wettable Powder): Ideal for foliar spraying on fruits and vegetables.

  • 50% WP: Economical option for moderate disease pressure.

  • 97% TC (Technical Concentrate): For bulk formulation, industrial processing.

Packaging Options:

Packaging Type Size Options
Bags 100g, 250g, 500g, 1kg, 5kg
Drums 10kg, 25kg
Bottles (SL/SC) 100ml to 1L
Bulk Up to 1000kg

Custom packaging with your logo, brand, language, and design is available to support regional market needs.

OEM / ODM & Regulatory Support

We offer complete private label and contract manufacturing support, including:

  • Custom formulation and concentration

  • Label design and multi-language packaging

  • COA, MSDS, TDS, and regulatory registration support

  • Assistance with local market entry and compliance

Whether you are a distributor, importer, or agrochemical brand, Shengmao is your trusted partner for high-quality fungicides.

Usage Precautions & Environmental Safety

Safety Guidelines:

  • Use gloves, goggles, long sleeves, and masks during application.

  • Avoid inhalation and skin/eye contact.

  • Do not spray during strong wind, extreme heat, or rain.

Environmental Impact:

  • Aquatic Risk: Keep away from water bodies and irrigation zones.

  • Pollinator Safety: Avoid spraying during flowering seasons.

Storage & Disposal:

  • Store in a cool, dry, and ventilated area.

  • Keep away from children and animals.

  • Triple-rinse containers; dispose of per local regulations.

Why Choose Shengmao as Your Thiophanate-Methyl Supplier?

  • ISO-Certified Manufacturing

  • Global Export Experience

  • Custom OEM/ODM Solutions

  • Reliable Bulk Supply & Logistics

  • Regulatory Support Documents (COA, MSDS, SGS)

We empower agricultural brands and distributors with quality-assured, high-performance fungicides tailored for your market.

FAQ: Comprehensive Guide to Thiophanate Methyl

1. What is Thiophanate Methyl?

Thiophanate Methyl is a broad-spectrum systemic fungicide belonging to the benzimidazole group. It is widely used in agriculture and horticulture to control various fungal diseases in crops, turfgrass, and ornamental plants. Upon application, it is absorbed and translocated within the plant, providing both protective and curative actions.

2. What is Thiophanate Methyl Used For?

Thiophanate Methyl is primarily used to treat and prevent fungal diseases such as:

  • Powdery mildew

  • Gray mold (Botrytis)

  • Anthracnose

  • Fusarium wilt

  • Leaf spot

  • Brown patch
    It is effective on crops like vegetables, fruits, cereals, ornamentals, and turfgrass.

3. How Does Thiophanate Methyl Work (Mode of Action)?

Thiophanate Methyl works by inhibiting fungal cell division. Once inside the plant, it is converted into carbendazim, which disrupts mitosis in the fungus by interfering with microtubule formation. This halts fungal growth and reproduction, providing systemic protection throughout the plant.

4. Thiophanate Methyl Uses and Fungicide Applications

Common applications include:

  • Field crops: soybeans, wheat, peanuts, and cotton

  • Fruits and vegetables: strawberries, tomatoes, cucumbers, grapes

  • Ornamentals and flowers: roses, chrysanthemums, geraniums

  • Turf management: golf courses, athletic fields, and lawns
    It can be applied as a foliar spray, seed treatment, or soil drench, depending on the crop and fungal issue.

5. Thiophanate Methyl Fungicide in Combination with Other Fungicides

To prevent resistance and enhance spectrum, Thiophanate Methyl is often mixed with fungicides like:

  • Chlorothalonil (contact fungicide)

  • Mancozeb

  • Copper-based fungicides
    Such combinations improve disease control and provide both systemic and contact protection.

6. Thiophanate Methyl vs. Other Fungicides (Azoxystrobin, Propiconazole, Myclobutanil)

Fungicide Mode of Action Best For Resistance Risk Systemic?
Thiophanate Methyl Cell division inhibition Broad fungal control Medium (use in rotation) Yes
Azoxystrobin Mitochondrial respiration inhibition Downy mildew, rusts Medium to High Yes
Propiconazole Sterol biosynthesis inhibitor Rusts, leaf spots Medium Yes
Myclobutanil Demethylation inhibitor (DMI) Powdery mildew, scab Low to Medium Yes

Thiophanate Methyl is best used as part of an integrated fungicide program to prevent resistance and maintain efficacy.

7. Where to Buy Thiophanate Methyl?

Thiophanate Methyl fungicide is available from:

  • Agrochemical suppliers and distributors

  • Online agricultural retailers (e.g., Amazon, Alibaba, CropLife stores)

  • Local farm supply stores
    Always ensure the product is registered and labeled for your region and crop.

8. Thiophanate Methyl 70 WP Price

Prices vary by quantity, brand, and region. On average:

  • 1 kg of Thiophanate Methyl 70% WP ranges from $10 to $25
    Bulk orders or generic brands may offer discounts. Check multiple suppliers for competitive pricing.

9. Chlorothalonil and Thiophanate Methyl-Based Fungicides

Combining Chlorothalonil (a contact fungicide) with Thiophanate Methyl offers:

  • Dual modes of action (systemic + contact)

  • Enhanced disease spectrum

  • Resistance management
    These combinations are popular in turf care and crop protection for diseases like leaf spot, dollar spot, and brown patch.

10. Fungicides Containing Thiophanate Methyl and Chlorothalonil

Some common formulations include:

  • Spectro 90WDG

  • Cleary’s 3336 Plus

  • Fungo Flo
    These products are widely used on lawns, golf courses, ornamental plants, and field crops, offering robust and lasting fungal control.

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