Metiram 55% + Pyraclostrobin 5% WG Fungicide Uses

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    Metiram 55% + Pyraclostrobin 5% WG is a combination fungicide that pairs metiram, a multi-site contact fungicide of the dithiocarbamate group, with pyraclostrobin, a strobilurin (QoI) fungicide. It is registered for use in India under the Insecticides Act, 1968, and is formulated as water-dispersible granules (WG) for foliar spraying. It is registered on 15 crops, including early blight in tomato, late blight in potato, downy mildew in grape, cucumber and bitter gourd, anthracnose in chilli, purple blotch in onion, leaf spots in cotton, pulses and groundnut (tikka), Sigatoka in banana, fruit spot in pomegranate, Alternaria blight and powdery mildew in cumin, and premature leaf fall and Alternaria leaf spot/blight in apple. This page lists its mode of action, key benefits and the recommended dosage as per the Central Insecticides Board & Registration Committee (CIB&RC) official list of approved fungicide uses (Government of India).

    Which Problem Is This For? (Symptom Guide)

    Not sure whether what you're seeing in the field matches this fungicide's use case? This guide helps match symptoms to this fungicide's approved crop-wise uses.

    Crop Other Names What You'll See in the Field
    Tomato — Early blight अगेती झुलसा रोग Dark brown spots with concentric rings ("target board" pattern) on older, lower leaves, often with a yellow halo; leaves yellow and drop, and dark sunken patches may form near the fruit stalk.
    Potato — Late blight पछेती झुलसा रोग Irregular, water-soaked, pale-green to brownish-black patches on leaf tips and edges that spread fast in cool, humid weather, with white fungal growth on the underside in the morning; the crop can collapse within days and tubers show reddish-brown dry rot.
    Grape — Downy mildew मृदु रोमिल आसिता (डाउनी मिल्ड्यू) Pale-yellow, oily patches on the upper leaf surface with white, downy growth beneath; young bunches and berries turn brown, shrivel and drop.
    Chilli — Anthracnose एन्थ्रेक्नोज़ / फल सड़न Sunken, dark, circular spots with concentric rings on ripening fruit, which may rot; twigs can dry back from the tip (die-back).
    Onion — Purple blotch बैंगनी धब्बा रोग (पर्पल ब्लॉच) Small, whitish, sunken spots on leaves and flower stalks that enlarge into purplish-brown patches with yellow margins; leaves droop and dry from the tip.
    Cotton — Alternaria leaf spot अल्टरनेरिया पत्ती धब्बा Small, brown, round to irregular spots with concentric rings on leaves, often with a yellow border; heavily spotted leaves dry and fall early.
    Apple — Premature leaf fall, Alternaria leaf spot & blight अकाल पतझड़, अल्टरनेरिया पत्ती धब्बा Dark brown blotches on leaves that turn yellow and fall well before the normal season (premature leaf fall); small, round, brown to purplish spots that enlarge and merge into blighted patches (Alternaria).
    Pomegranate — Fruit spot फल धब्बा रोग Small, brown to black spots on the fruit skin that enlarge and may become sunken; spots may also appear on leaves.
    Black gram — Leaf spot पत्ती धब्बा रोग Round to angular brown spots with greyish centres and reddish-brown margins on leaves; severe spotting causes leaves to yellow and drop.
    Cumin — Alternaria blight, Powdery mildew झुलसा रोग, भभूतिया रोग (छाछ्या) Blight: small purplish to brown-black spots on leaves and stems; tips droop and plants dry up quickly, especially after cloudy, humid weather at flowering. Powdery mildew: white powdery coating on leaves, stems and seeds.
    Green gram — Cercospora leaf spot सर्कोस्पोरा पत्ती धब्बा Circular to irregular brown spots with grey centres and reddish-brown borders on leaves; leaves yellow and fall in severe infection.
    Groundnut — Tikka disease टिक्का रोग Round, dark brown to black spots on leaves, sometimes with a yellow halo; heavily affected leaves drop, leaving bare stems.
    Banana — Sigatoka leaf spot सिगाटोका पत्ती धब्बा Small yellowish streaks on leaves that turn into elongated brown to black spots with grey centres; leaves dry from the edges, reducing bunch size.
    Cucumber, Bitter gourd — Downy mildew मृदु रोमिल आसिता (डाउनी मिल्ड्यू) Angular yellow patches on the upper leaf surface bounded by veins, with grey-purple downy growth beneath in humid weather; leaves turn brown and dry.

    Mode of Action

    This product combines two fungicides with different modes of action. Metiram is a dithiocarbamate — FRAC Group M03 (multi-site contact activity). It acts on many enzymes and processes inside the fungal cell at once, preventing spore germination on the plant surface; its multi-site action carries a low risk of resistance. Pyraclostrobin is a strobilurin (QoI, quinone outside inhibitor) — FRAC Group 11. It binds to the Qo site of the cytochrome bc1 complex in fungal mitochondria, blocking respiration and energy (ATP) supply, and it has translaminar movement within the leaf. The combination is used because the protective multi-site partner (metiram) helps guard the single-site strobilurin against resistance, while the two actives together cover a broad range of leaf spot, blight, mildew and anthracnose diseases.

    Features & Benefits

    • Two modes of action — multi-site contact (FRAC M03) plus strobilurin (FRAC Group 11) — which supports resistance management.
    • Registered on 15 crops across vegetables, fruits, pulses, oilseeds, cotton and spices.
    • Protective action from metiram combined with translaminar action from pyraclostrobin.
    • Water-dispersible granule (WG) formulation that is easy to measure and disperses well in water with little dust.

    Recommended Usage of Metiram 55% + Pyraclostrobin 5% WG Fungicide

    The table below gives the recommended dose, water volume and waiting period per acre, converted from the CIB&RC-registered per-hectare rate — see the note below the table for conversion details. Always confirm against the current product label before use.

    Crop Target Disease Dose per Acre Water Volume per Acre Waiting Period (PHI)
    Tomato Early blight ~600–700 g ~200 litres 5 days
    Potato Late blight ~600–700 g ~200 litres 15 days
    Grape Downy mildew ~600–700 g ~300 litres 34 days
    Chilli Anthracnose ~600–700 g ~200 litres 5 days
    Onion Purple blotch ~600–700 g ~200 litres 16 days
    Cotton Alternaria leaf spot ~600–700 g ~200 litres 45 days
    Apple Premature leaf fall, Alternaria leaf spot & blight ~700 g (mix 100 g per 100 litres of water*) As per tree size* 12 days
    Pomegranate Fruit spot ~600–700 g ~200 litres 67 days
    Black gram Leaf spot ~600–700 g ~200 litres 32 days
    Cumin Alternaria blight, Powdery mildew ~600–700 g ~200 litres 20 days
    Green gram Cercospora leaf spot ~600–700 g ~200 litres 18 days
    Groundnut Tikka disease ~600–700 g ~200 litres 42 days
    Banana Sigatoka leaf spot ~600–700 g ~200 litres 85 days
    Cucumber Downy mildew ~600–700 g ~200 litres 5 days
    Bitter gourd Downy mildew ~600–700 g ~200 litres 5 days

    Figures above are converted from the CIB&RC-registered per-hectare rate (1 ha ≈ 2.47 acres): 900–1050 g a.i./ha, 1500–1750 g formulation/ha and 500 L water/ha for all crops except grape (750 L water/ha) and apple; waiting periods as shown in the table. *For apple, CIB&RC lists 1050 g a.i./ha and 1750 g formulation/ha with a mixing rate of 100 g per 100 litres of water instead of a fixed water volume — this is a fixed mixing concentration, and the total spray volume depends on the size of the tree. Always confirm the current dose on your specific product's label before use.

    How to Use

    1. Identify your crop and disease from the symptom guide above and confirm the dose and water volume from the table.
    2. Weigh the required quantity of granules, pre-mix them in a bucket of water until fully dispersed, then add to the half-filled spray tank and top up to the full volume while stirring.
    3. Spray uniformly over the whole canopy, covering both upper and lower leaf surfaces.
    4. As the product is mainly protective, begin spraying at the first appearance of disease, or preventively when cool, humid or cloudy weather favours disease.
    5. For apple trees, keep the mixing rate of 100 g per 100 litres of water and adjust the total spray volume to the size of the tree.
    6. If a repeat spray is needed, follow the interval advised on the product label or by your local agricultural extension office, and rotate with fungicides from other FRAC groups.

    Precautions & Safety

    • Wear appropriate PPE — mask/respirator, gloves, goggles and full-sleeved clothing — while mixing and spraying, and avoid inhaling dust or spray mist.
    • Do not exceed the recommended dose; avoid repeated back-to-back sprays of strobilurin (FRAC Group 11) products on the same crop.
    • Respect the waiting period (PHI) for each crop given in the table above before harvest — it ranges from 5 days (tomato, chilli, cucumber, bitter gourd) to 85 days (banana).
    • Do not let spray wash or field water reach ponds, fish tanks, streams or drinking-water sources.
    • Store in the original, tightly closed container in a cool, dry place away from direct sunlight, food and feed, and out of reach of children and livestock.
    • Wash hands, face and any exposed skin thoroughly with soap and water after spraying, and change out of contaminated clothing before eating, drinking or smoking.

    Brand names mentioned on this page are registered trademarks of their respective owners and are referenced here for identification purposes only; FarmMate is not affiliated with or endorsed by these brands. This page is for general information only — always consult your local agricultural extension office and confirm the current product label before use.

    Disclaimer

    The dosage and usage information on this page is based on the Central Insecticides Board & Registration Committee (CIB&RC), Government of India, document "Major Uses of Pesticides" (registered under the Insecticides Act, 1968; updated up to 31.03.2026). As stated in that document, it has been compiled on the basis of available information for guidance and not for legal purposes. Likewise, this page is for general information and guidance only; it is not intended for any legal purpose and has no legal validity.

    Before using any product, always read and follow the instructions on its label and leaflet. If in doubt, consult your local agricultural extension officer.

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