Active ingredients and dual mode of action
The combination of two distinct chemical classes delivers broad protection while mitigating fungicide resistance. Azoxystrobin inhibits mitochondrial respiration by blocking electron transport at the Qo site (Group 11), halting fungal spore germination. Difenoconazole is a demethylation inhibitor (DMI, Group 3) that disrupts fungal cell membrane ergosterol biosynthesis, arresting mycelial expansion.
- Azoxystrobin 18.2% SC: Strobilurin fungicide providing preventive action and crop greening effect.
- Difenoconazole 11.4% SC: Systemic triazole fungicide providing strong curative and eradicant action.
- Systemic mobility: Absorbed rapidly by green foliage and translocated acropetally.
Target crop diseases
- Paddy: Sheath blight (Rhizoctonia solani) and blast disease (Pyricularia oryzae).
- Chili: Anthracnose fruit rot (Colletotrichum capsici) and powdery mildew (Leveillula taurica).
- Tomato: Early blight (Alternaria solani).
- Maize: Maydis leaf blight and banded leaf and sheath blight.
Safe handling and spray instructions
Apply as a foliar spray at the initial appearance of disease symptoms using clean water and calibrated knapsack or power sprayers. Do not apply under high winds or impending rain. Always adhere strictly to CIBRC label-recommended dosages and safety instructions, wear protective gear, and observe the prescribed pre-harvest interval.
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What are the active ingredients in Amistar Top?
It contains Azoxystrobin 18.2% and Difenoconazole 11.4% in a suspension concentrate (SC) formulation.
Which diseases does it control in paddy?
It controls sheath blight and blast diseases in paddy crops effectively.
Can Amistar Top cure existing fungal infections?
Yes, its systemic triazole component (difenoconazole) provides curative action against newly established fungal mycelia.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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