Amistar Top is a broad-spectrum fungicide with systemic properties, manufactured by Syngenta.1 It combines two powerful active ingredients: Azoxystrobin 18.2% (a strobilurin fungicide) and Difenoconazole 11.4% (a triazole fungicide).2 This combination offers excellent disease control and helps manage resistance development.3
Key Features and Benefits:
Broad-spectrum activity: Controls a wide range of fungal diseases, including powdery mildew, rusts, leaf spots, blights, and sheath blight.4
Dual mode of action:
Azoxystrobin: Inhibits mitochondrial respiration in fungi, preventing energy production and halting fungal growth.5
Difenoconazole: Inhibits ergosterol biosynthesis, disrupting cell membrane formation in fungi.6
Systemic movement: Absorbed by the plant and translocated upwards, providing protection to new growth.7
Protective, curative, and eradicative action: Prevents infection, controls existing infections, and helps eradicate established diseases.8
Long-lasting control: Offers extended protection against diseases, reducing the need for frequent applications.9
Resistance management: The combination of two different modes of action helps prevent the development of fungicide resistance.
Enhanced plant health: Improves plant vigor and stress tolerance, leading to healthier plants and better yields.10
Rainfastness: Resists wash-off by rain, ensuring continued protection.
Target Crops and Diseases:
Amistar Top is registered for use on a variety of crops, including:
Cereals: Wheat (rust, leaf blotch), Rice (sheath blight, blast), Corn (leaf blight, rust)11
Oilseeds: Soybean (rust, frogeye leaf spot)
Pulses: Chickpea (blight)
Vegetables: Tomato (early blight, late blight), Potato (late blight), Chilli (anthracnose, powdery mildew), Onion (purple blotch), Cucurbits (downy mildew, powdery mildew)12
Fruits: Grapes (powdery mildew, downy mildew), Banana (sigatoka)13
Plantation crops: Tea (blister blight)
Recommended Dosage:
The dosage of Amistar Top varies depending on the crop and disease.14 It's generally recommended to use 0.5 - 1 ml per liter of water. However, always refer to the product label or consult a qualified agricultural expert for specific recommendations.
Application Method:
Foliar spray: Apply Amistar Top as a foliar spray, ensuring thorough coverage of the entire plant.
Apply at the first sign of disease or as a preventive measure.
Repeat applications as needed, based on disease pressure and recommendations.
Safety Precautions:
Always wear protective clothing, including gloves, masks, and eye protection, when handling and applying Amistar Top.
Avoid contact with skin and eyes.
Do not inhale the spray mist.
Keep out of reach of children and animals.
Store in a cool, dry place away from direct sunlight and heat.
Note: Amistar Top is a pesticide.15 Always follow the instructions on the product label carefully and take all necessary safety precautions.
