Metiram fungicide uses are mainly related to the protection of crops against a range of fungal diseases. Metiram is a broad-spectrum, multi-site fungicide that is commonly used as a protective treatment, especially where preventive disease control is important.
It is available in different commercial formulations, including Metiram 70 WG, and is used in crop protection programs for fruits, vegetables and other agricultural crops. The exact use depends on the crop, disease target and local product registration.
For manufacturers and formulators, Metiram is also important from a formulation point of view, particularly in water-dispersible granule and other fungicide product systems.
If you are working with Metiram or other crop protection fungicides,
the
FUNGICIDE FORMULATIONS ENCYCLOPEDIA
provides practical formulation examples, raw material information and production guidance for different fungicide product types.
✅ 2. Chemical & Physical Properties
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Common Name: Metiram
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Chemical Group: Dithiocarbamate fungicide
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CAS Number: 9006-42-2
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Molecular Formula: C₈H₁₈N₄S₈Zn
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Formulation Types:
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70% WP
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75% WG
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80% WDG (depending on manufacturer)
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Appearance: Grayish-yellow powder or granules
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Solubility: Insoluble in water; dispersible with agitation
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Mode of Action:
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Multi-site inhibitor; blocks fungal enzymatic systems
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Prevents spore germination
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Strong protectant activity
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Physical Characteristics:
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Good rainfastness once dry
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Adheres well to plant surfaces
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Stable in proper storage
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✅ 3. Key Features & Benefits
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Broad-spectrum protectant fungicide
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Low resistance risk (multi-site activity)
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Excellent preventive action
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Effective against many foliar fungal diseases
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Compatible with tank mixes (depending on pH)
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Low phytotoxicity on labeled crops
✅ 4. Applications & Uses
Metiram is widely used in vegetables, fruits, cereals, nuts, and ornamentals.
🌿 A. Fruit Crops
Grapes
Controls:
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Downy mildew (Plasmopara viticola)
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Black rot
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Phomopsis cane & leaf spot
Apple / Pear
Controls:
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Scab
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Alternaria leaf blotch
Citrus
Controls:
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Citrus scab
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Melanose
🍅 B. Vegetables
Tomato, Potato
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Early blight
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Late blight (as part of a program)
Cucumber, Melon, Pumpkin
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Downy mildew
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Anthracnose
Onion & Garlic
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Purple blotch
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Downy mildew (preventive)
🌾 C. Cereals & Row Crops
Wheat, Barley
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Leaf spot complex
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Rust diseases (supportive use)
Soybean
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Anthracnose
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Downy mildew
🌰 D. Nut Crops
Walnut, Hazelnut
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Leaf spot diseases
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Brown rot
🌺 E. Ornamentals
Common uses:
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Leaf spots
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Blights
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Flower diseases
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Downy mildew
🧪 5. Mode of Application
Metiram is typically applied as:
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Foliar spray with high coverage
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Ground sprayers
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Airblast sprayers in orchards
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Used in regular preventive spray programs
Frequency of spraying usually depends on:
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Crop growth stage
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Disease pressure
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Weather conditions
🛡️ 6. Advantages in Crop Protection
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Excellent surface protection
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Multi-site mechanism → very low resistance risk
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Valuable rotation partner in IPM programs
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Effective during wet and humid conditions
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Uniform coverage and persistence
Summary
Metiram fungicide uses are mainly connected with preventive crop protection against fungal diseases. Products such as Metiram 70 WG are part of a wider group of fungicide formulations used in commercial agriculture, with the exact application depending on the crop, target disease and local registration.
For readers who want to move beyond basic product information and study practical fungicide formulations in more detail,
the
FUNGICIDE FORMULATIONS ENCYCLOPEDIA
is the natural next step.
https://makingchembooks.com/product/fungicide-formulations-encyclopedia/
