Active Ingredient Chemistry and Dual Mode of Action
Swadhin combines systemic internal defense with surface contact and vapor activity.
Key biochemical attributes:
- Tebuconazole (10%): Demethylation inhibitor (DMI triazole) that blocks fungal ergosterol biosynthesis, halting pathogen cell membrane development.
- Sulphur (65%): Multi-site contact protectant that enters fungal spore cells to disrupt respiration in the electron transport chain.
- Acaricidal action: Sulphur vapor action suppresses phytophagous spider mites, preventing concurrent pest flare-ups.
- Phytotonic nutrition: Supplies bio-available sulphur, promoting chlorophyll synthesis, oil formation in oilseeds, and vigorous greening.
Target Crops and Disease Complex Controlled
Swadhin is registered under CIBRC guidelines across key commercial oilseeds, spices, and horticulture crops.
Major registered crop uses:
- Soybean: Manages Asian soybean rust (Phakopsora pachyrhizi) and Cercospora leaf spot, preserving leaf canopy during pod fill.
- Chilli: Highly effective against powdery mildew (Leveillula taurica) and fruit rot anthracnose dieback on pods.
- Groundnut: Controls early leaf spot (Cercospora arachidicola), late leaf spot (Phaeoisariopsis personata), and rust.
- Grapes and Mango: Suppresses powdery mildew on young leaves, inflorescence panicles, and developing berry clusters.
Application Guidelines and Spray Safety
Applying the fungicide at approved developmental stages maximizes disease suppression.
Safe handling guidelines:
- Label dose compliance: Measure accurately according to official manufacturer package directions; mix thoroughly in clean water.
- Temperature precaution: Avoid spraying sulphur formulations under extreme midday heat (above 35 degrees Celsius) to prevent leaf scorch.
- Protective equipment: Wear chemical-resistant gloves, goggles, and face masks during spray preparation.
- Harvest intervals: Observe specified pre-harvest intervals to ensure harvested produce remains free of unacceptable residues.
Official source
Check the latest rules, benefits and forms here. KisanPe is an independent platform and is not a government website.
Directorate of Plant Protection, Quarantine & Storage ↗Related on KisanPe
Common questions
What active ingredients are present in Swadhin fungicide?
Swadhin contains Tebuconazole 10% (systemic triazole) and Sulphur 65% (contact protectant) in water-dispersible granules (WG).
What dual benefit does the sulphur in Swadhin provide?
Sulphur provides multi-site fungal protection and mite suppression while simultaneously acting as an essential secondary plant nutrient.
Which major diseases are controlled by Swadhin in soybean and chilli?
It controls Asian rust and leaf spot in soybean, and powdery mildew and anthracnose fruit rot in chilli crops.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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