Syngenta Amistar Top Fungicide Azoxystrobin 18.2% + Difenoconazole 11.4% SC

Syngenta Amistar Top is a broad-spectrum systemic fungicide combining two complementary active ingredients — Azoxystrobin and Difenoconazole — that target a wide range of fungal diseases across multiple crops. It inhibits fungal respiration (FRAC Group 11) and disrupts sterol biosynthesis (FRAC Group 3), providing both preventive and curative protection with long-lasting residual activity.

Amistar Top is versatile and ideal for crops like tomato, paddy, maize, chilli, cotton, sugarcane, turmeric, onion and other vegetables. Its systemic action ensures translocation throughout the plant, protecting both treated and untreated plant parts.

Amistar Top Fungicide Technical Name

Azoxystrobin 18.2% + Difenoconazole 11.4% SC (Suspension Concentrate)

Key Features and Benefits

• Dual Mode of Action: Azoxystrobin inhibits fungal mitochondrial respiration; Difenoconazole disrupts ergosterol biosynthesis. Together they deliver broad-spectrum control with reduced resistance risk.
• Preventive and Curative: Effective both before disease onset and after early symptoms appear, making it highly versatile across spray schedules.
• Systemic Translocation: Moves acropetally through the plant, protecting new growth and untreated tissue.
• Broad-Spectrum Coverage: Effective against blight, blast, anthracnose, powdery mildew, downy mildew, leaf blotch, purple blotch, rust and more.
• High Compatibility: Compatible with most insecticides and fertilizers, enabling tank-mix programmes.
• Long-Lasting Residual: Reduces the number of applications required per season.

Mode of Action

• Azoxystrobin (FRAC Group 11 — QoI): Inhibits mitochondrial respiration at Complex III, blocking energy production in fungal cells.
• Difenoconazole (FRAC Group 3 — DMI Triazole): Inhibits ergosterol biosynthesis, disrupting fungal cell membrane integrity and stopping growth.

Target Diseases

Amistar Top is effective against early blight, late blight, blast, sheath blight, anthracnose, powdery mildew, downy mildew, leaf blotch, purple blotch, red rot, smut, rust, leaf spot, and grey mildew.

Crops and Recommended Dosage

How To Use Syngenta Amistar Top

1. Measure 200 ml of Amistar Top per acre for foliar spray application.
2. Mix with a small quantity of water first, then dilute to 150–200 litres of water per acre and stir well.
3. Spray uniformly over the entire crop canopy — ensure thorough coverage of upper and lower leaf surfaces.
4. Apply at the early stage of disease appearance or preventively during high-risk weather conditions (humid, warm weather favourable for fungal development).
5. Spray during early morning or late evening to improve absorption and reduce evaporation.
6. Do not spray if rain is expected within 3–4 hours of application.
7. Always wear gloves, a mask, and full-sleeve clothing while spraying.
8. Rinse the sprayer thoroughly with clean water after every use.

Product Specifications

Frequently Asked Questions (FAQ)

Q1. What is Syngenta Amistar Top and which diseases does it control?
Syngenta Amistar Top is a broad-spectrum systemic fungicide containing Azoxystrobin 18.2% + Difenoconazole 11.4% SC. It controls a wide range of fungal diseases including early blight, late blight, blast, sheath blight, anthracnose, powdery mildew, downy mildew, purple blotch, leaf blotch, rust, red rot and grey mildew across multiple crops.

Q2. What is the recommended dose of Amistar Top and how should it be applied?
The recommended dose is 200 ml per acre as a foliar spray. Mix with a small quantity of water first, then dilute to 150–200 litres of water per acre. Spray uniformly over the entire crop canopy, covering both upper and lower leaf surfaces. Apply during early morning or late evening for best results.

Q3. Can Amistar Top be used as both a preventive and curative fungicide?
Yes. Amistar Top is effective both preventively — applied before disease onset during high-risk weather conditions — and curatively, when applied at the early stage of disease appearance. Its dual active ingredients target different stages of fungal development, making it effective across a wide spray window.

Q4. Which crops can Amistar Top be used on?
Amistar Top is suitable for a wide range of crops including tomato, paddy, maize, chilli, onion, turmeric, sugarcane, cotton and other vegetables. It provides broad-spectrum disease control across both field crops and horticultural crops, making it a versatile choice for integrated disease management programmes.