Active composition and dual mode of action
- Active ingredients: Metalaxyl 8% (systemic phenylamide, FRAC Group 4) + Mancozeb 64% WP (contact dithiocarbamate, FRAC Group M03).
- Metalaxyl systemic action: Absorbed rapidly by green foliage and stems, moving acropetally to arrest internal fungal mycelial growth.
- Mancozeb contact shield: Forms a multi-site protective barrier on plant surfaces that inactivates fungal spores upon contact.
- Resistance management: Combining a single-site systemic with a multi-site contact fungicide prevents the development of resistant fungal strains.
Target diseases and approved crop spectrum
- Potato and Tomato: Benchmark control against Late Blight (Phytophthora infestans) and damping-off.
- Grapes: Provides industry-standard control of Downy Mildew (Plasmopara viticola) on leaves and clusters.
- Black Pepper: Protects against devastating foot rot (Quick wilt / Phytophthora capsici).
- Mustard: Controls white rust (Albugo candida) and downy mildew.
- Cucurbits: Prevents downy mildew and damping-off in nursery beds.
Spraying protocol, equipment, and precautions
- Application timing: Best applied preventively prior to disease appearance or at the earliest sign of blight-favorable weather.
- Spray equipment: Use knapsack or motorized sprayers with hollow cone nozzles, ensuring thorough foliage wetting.
- Water volume: Use 150 to 200 litres of clean water per acre for field crops and 400 to 500 litres per acre for vineyards.
- Pre-harvest interval: Strictly adhere to CIB&RC approved waiting periods before harvesting edible produce.
Official source
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Central Insecticides Board & Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is the chemical composition of Tata Master fungicide?
Tata Master contains Metalaxyl 8% + Mancozeb 64% WP, combining systemic and contact fungicides.
Which major disease does Tata Master control in potato?
It provides exceptional control against Late Blight (Phytophthora infestans) in potato.
How does Metalaxyl work inside the plant?
Metalaxyl translocates systemically through the plant sap and inhibits fungal RNA synthesis curatively.
Can Tata Master be used for downy mildew in grapes?
Yes, it is highly recommended for preventive and curative control of downy mildew in grapes.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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