Marlett Fungicide (Mancozeb 75% WP)
The Ultimate Broad-Spectrum Shield for Disease Control & Plant Nutrition
Marlett (Mancozeb 75% WP) by Coromandel International is a trusted contact fungicide that provides dual benefits: powerful disease protection and essential crop nutrition. Unlike generic options, Marlett's superior formulation ensures better coverage and rainfastness.
Why Farmers Choose Marlett: It acts as a "chemical sledgehammer" against fungi while simultaneously supplying Zinc (Zn) and Manganese (Mn) to the plant. This results in a visible "greening effect," boosting crop health while preventing resistance buildup against systemic fungicides.
Why Choose This Product? Key Benefits
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Broad-Spectrum Control: effectively manages Rust, Blight, Leaf Spot, Downy Mildew, and Blast across a wide range of crops.
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Resistance Fighter: With a multi-site mode of action (Group M3), it prevents fungi from developing resistance, making it an ideal tank-mix partner.
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Long-Lasting Protection: Provides a residual shield on the leaf surface that remains active for 7 to 10 days.
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Superior Rainfastness: Formulated with special stickers that help the spray adhere to leaves, resisting wash-off during light rains.
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Nutritional Bonus: Supplies Zinc and Manganese to crops, correcting deficiencies and improving overall plant vigor.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Marlett |
| Technical Name | Mancozeb 75% WP |
| IRAC MoA Code | M3 (Multi-Site Contact) |
| Chemical Group | Dithiocarbamate |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Marlett is a contact fungicide that acts as a protective shield. It must be present on the leaf surface before the fungal spores arrive.
- Multi-Site Inhibition: Upon contact, it releases isothiocyanates that attack the fungus at multiple points (respiration, lipid metabolism, ATP production).
- Spore Blockade: It specifically inhibits spore germination. If a spore lands on a treated leaf, the germ tube fails to develop, stopping infection instantly.
- Resistance Management: Because it attacks multiple systems simultaneously, it is statistically improbable for the fungus to mutate and develop resistance.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Wheat & Paddy | Brown Rust, Black Rust, Blast, Leaf Blight |
| Potato & Tomato | Late Blight, Early Blight, Buckeye Rot |
| Grapes, Apple, Banana | Downy Mildew, Scab, Sigatoka Leaf Spot, Anthracnose |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (gm / Acre) | Water (L / Acre) | Dose (gm / Litre) | PHI (Days) |
|---|---|---|---|---|
| Wheat, Paddy, Maize | 600 - 800 g | 200 - 300 L | 3 - 4 g | - |
| Potato, Tomato, Chilli | 600 - 800 g | 200 - 300 L | 3 - 4 g | 3 - 7 Days |
| Grapes, Banana, Apple | 600 - 800 g | 300 - 400 L | 2 - 2.5 g | 7 - 14 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Use prophylactically (preventively) before disease appearance or immediately upon disease forecast. In humid/rainy weather, shorten spray interval to 5-7 days.
- Mixing: Premix the required quantity in a small bucket with water to make a slurry before adding to the main tank. NEVER mix with alkaline products like Bordeaux mixture.
- Coverage: Marlett is a contact fungicide. Ensure thorough and uniform coverage of the foliage for effective protection.
- Safety: Always wear PPE (gloves, mask, goggles) to prevent inhalation of dust. Wash hands thoroughly after use.
Frequently Asked Questions
1. Can Marlett cure a disease that is already present?
No, Marlett is a protectant. It prevents infection. If disease is already established, mix Marlett with a curative systemic fungicide (like Metalaxyl or Cymoxanil) for best results.
2. Does Marlett provide nutrition to the crop?
Yes! Marlett contains approximately 20% Manganese and 2.5% Zinc, which helps green up the crop and correct micronutrient deficiencies.
3. Can I mix Marlett with insecticides?
Yes, Marlett is compatible with most common insecticides (like Imidacloprid or Chlorpyrifos) and fungicides. Always perform a jar test first and avoid alkaline mixtures.
4. Is Marlett safe for bees?
Yes, it is generally considered non-toxic to bees when used as directed and once the spray has dried on the foliage.
5. What is the best time to spray for Potato Late Blight?
Start spraying before symptoms appear, especially during foggy or cloudy weather. Repeat every 5–7 days for continuous protection.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application.
