Key active ingredient classes
- Strobilurins (QoI fungicides): Active ingredients like Azoxystrobin that inhibit fungal mitochondrial respiration, offering strong preventive control and physiological plant greening effects.
- Triazoles (DMI fungicides): Active ingredients like Difenoconazole and Propiconazole that inhibit ergosterol biosynthesis, providing curative and translaminar defense.
- Phenylamides: Formulations containing Metalaxyl-M that provide systemic control against oomycete diseases like downy mildew and damping-off.
- Mandipropamid: Carboxylic acid amide chemistry specifically targeting late blight and downy mildew pathogens.
Target fungal diseases across Indian crops
These fungicide chemistries protect staples and horticulture crops from devastating outbreaks. Common targets include blast and sheath blight in paddy, yellow rust and powdery mildew in wheat, early and late blight in potatoes and tomatoes, anthracnose in chili, and purple blotch in onions.
Resistance management and label compliance
Continuous exclusive application of single-site systemic fungicides can select for resistant fungal strains. Farmers should rotate strobilurin and triazole products with multisite protectant fungicides such as mancozeb or chlorothalonil, adhere strictly to approved CIBRC dosages, and respect pre-harvest intervals.
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is the function of Azoxystrobin in fungicides?
Azoxystrobin halts fungal energy production by blocking mitochondrial respiration, preventing spore germination.
How do triazole fungicides cure fungal infections?
Triazoles stop fungal membrane formation by inhibiting ergosterol synthesis, halting existing fungal mycelial spread.
Why is rotating fungicide chemistries recommended?
Alternating different chemical groups prevents fungal populations from developing resistance to single-site systemic fungicides.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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