Product Name: Metiram

Product Name: Metiram

Chemical Name: Polymeric zinc manganese ethylene bis(dithiocarbamate)
CAS Number: 9006-42-2
Molecular Formula: (C4H6MnN2S4)x(Zn)y
Chemical Family: Dithiocarbamate fungicide
Formulation Types: Wettable Powder (WP), Water-Dispersible Granules (WG), Suspension Concentrate (SC)

🧪 Product Overview:

Metiram is a broad-spectrum, contact fungicide belonging to the ethylene bis(dithiocarbamate) (EBDC) group. It is primarily used to prevent and control a wide range of fungal diseases in crops such as grapes, potatoes, tomatoes, apples, citrus, and many other fruits and vegetables.

Metiram is often used as a protectant fungicide, forming a protective barrier on the surface of the plant that prevents fungal spores from germinating and penetrating plant tissue. It contains zinc and manganese, which can also act as micronutrient supplements, contributing to plant health.

🌿 Key Features & Benefits:

• ✅ Broad-spectrum control against major fungal diseases

• ✅ Acts as a protective barrier on plant surfaces

• ✅ Provides zinc and manganese – essential micronutrients

• ✅ Compatible with other fungicides (e.g., systemic products for resistance management)

• ✅ Low systemic movement – reduces resistance risk

• ✅ Ideal for use in rotational and integrated pest management (IPM) programs

🌾 Target Crops:

• Fruits: Grapes, apples, pears, bananas, citrus

• Vegetables: Tomatoes, potatoes, cucumbers, onions

• Field Crops: Sugar beet, tobacco, ornamental plants

🦠 Target Diseases:

• Downy mildew (Plasmopara viticola, Peronospora spp.)

• Early blight (Alternaria solani)

• Late blight (Phytophthora infestans)

• Scab (Venturia inaequalis)

• Anthracnose (Colletotrichum spp.)

• Black spot, leaf spot, and rust diseases

⚙️ Mode of Action:

Metiram acts as a multi-site inhibitor, targeting several enzyme systems within fungal spores. It disrupts vital processes like respiration and cell division, ultimately preventing spore germination and infection.

• FRAC Code: M3

• Type: Non-systemic, contact fungicide

• Mode of Action: Multi-site; interferes with sulfhydryl (–SH) group-containing enzymes in fungi

Because of its multi-site activity, Metiram carries low risk of resistance development, making it a key tool in sustainable disease management programs.

📋 Application Guidelines:

• Application Rate:

  • Typically 1.5 – 2.5 kg/ha depending on crop, formulation, and disease pressure

• Timing:

  • Apply preventively, before signs of disease appear

  • Repeat at 7–14 day intervals, especially in wet or humid conditions

• Method:

  • Foliar spray using conventional ground or aerial sprayers

• Compatibility:

  • Compatible with many systemic fungicides (consult compatibility charts before mixing)

⚠️ Safety & Handling:

• Toxicity:

  • Low to moderate toxicity to mammals; always use protective gear

  • Not safe for aquatic life – avoid contamination of water bodies

• Re-entry Interval (REI): Typically 12–24 hours

• Pre-harvest Interval (PHI): Varies by crop (usually 7–21 days)

• Protective Equipment:

  • Gloves, goggles, mask, and protective clothing during handling and application

• Storage:

  • Store in original packaging in a cool, dry, well-ventilated place away from food or animal feed

• Shelf Life: 2–3 years if stored properly

🌐 Regulatory & Usage Notes:

• Registered for agricultural use in many countries

• Observe maximum residue limits (MRLs) and label restrictions

• Not recommended for home garden use

• Use within integrated disease management programs to prevent fungicide overuse

✅ Conclusion:

Metiram is a reliable, cost-effective protectant fungicide offering broad-spectrum disease control in many crops. Its multi-site activity, combined with added micronutrient benefits, makes it an excellent option for preventative applications in high-value crop protection. When used as part of a well-managed spray program, Metiram contributes to healthier plants, better yields, and stronger disease resistance management.

🌱 Metiram – Proven Protection, Healthier Harvests.

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