Dual Active Chemistry and Synergistic Mode of Action
Haru combines two distinct modes of action: Tebuconazole is a broad-spectrum systemic triazole (FRAC Group 3 - DMI), which inhibits C-14 demethylation in fungal ergosterol synthesis. It is absorbed rapidly by green foliage and translocated acropetally via the xylem.
Sulphur acts as an inorganic multisite contact protectant (FRAC Group M02), interfering with fungal respiratory electron transport through hydrogen sulphide formation. This combination provides both internal curative healing and external preventive surface defense.
- Systemic & Contact Synergy: Delivers internal therapeutic control alongside an external protective foliar shield.
- Multisite Resistance Barrier: The high sulphur component prevents fungal strains from developing resistance to triazole chemistry.
- Water Dispersible Granules (WG): Dust-free granules that dissolve rapidly in water without settling or nozzle blockages.
Target Fungal Pathogens and Major Crops
Haru is officially registered under CIBRC standards for managing critical fungal complexes in chilli, soybean, groundnut, mango, and grapes. It is widely applied for powdery mildew (Erysiphe and Oidium species) and fruit rot / anthracnose (Colletotrichum capsici).
In oilseeds, it protects soybean against rust (Phakopsora pachyrhizi) and groundnut against tikka leaf spot (Cercospora arachidicola), while providing secondary sulphur nutrition that promotes oil synthesis.
- Chilli Protection: Controls powdery mildew and fruit rot / dieback in commercial chilli fields.
- Soybean Rust: Manages soybean rust during vegetative and reproductive pod filling.
- Nutritional Bonus: High sulphur content (65%) acts as a vital secondary nutrient, enhancing protein and oil content.
Application Guidelines and Spray Timing
Apply Haru at the first sign of disease symptoms or during weather conditions conducive to fungal proliferation (warm days with cool, humid nights). Ensure uniform foliar coverage using hollow cone nozzles on knapsack sprayers.
Do not apply Haru in high temperatures (above 35°C) or mix with oil-based crop sprays, as elemental sulphur can cause leaf phytotoxicity under extreme heat.
- Optimal Timing: Spray at early vegetative or bloom onset before fungal colonies cover leaves.
- Temperature Caution: Avoid spraying during intense midday heat to prevent sulphur-induced foliage scorch.
- Pre-Harvest Interval (PHI): Observe recommended harvest waiting windows as prescribed on the product label.
Official source
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Central Insecticides Board & Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is the technical composition of Haru fungicide?
Haru contains Tebuconazole 10% + Sulphur 65% WG (Water Dispersible Granules), manufactured by Sumitomo Chemical India.
Does Haru provide nutritional benefits to crops?
Yes, containing 65% elemental sulphur, Haru provides an essential secondary plant nutrient that promotes protein synthesis and oil accumulation.
Which major chilli diseases does Haru control?
Haru manages powdery mildew and fruit rot (dieback / anthracnose) in chilli crops.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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