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Crop Protection & Pesticides

Sulphur Mills Ltd: WDG Fertilizers & Crop Protection

Sulphur Mills Limited is an Indian agrochemical manufacturer recognized globally for pioneering water-dispersible granule (WDG) technologies in sulfur fertilizers and crop protection formulations. Its micronized sulfur products deliver dual benefits as essential plant nutrients and contact fungicides.

Last reviewed: 11 November 2026

Pioneering Micronized WDG Formulation Technology

Sulphur Mills pioneered the development of fine dry-flowable granules that disperse instantly upon contact with water.

Its specialized micronized sulfur technology reduces chemical particle sizes to micro-levels, ensuring superior suspension, foliar coverage, and rain tenacity.

These formulations eliminate dust hazards during application while maximizing bioavailability for plants.

  • Fertis WG: High-analysis elemental sulfur fertilizer providing sustained oxidation into plant-available sulphate
  • Sulfex / Cosavet: Micro-dispersed wettable sulfur acting as a protective contact fungicide and acaricide
  • Dual-action synergy: Supplies vital secondary sulfur nutrition while suppressing powdery mildew and phytophagous mites

Crop Protection Range and Combination Chemistry

Beyond pure sulfur, the company formulates broad-spectrum combination insecticides, fungicides, and herbicides.

These products are registered across cash crops, oilseeds, cereals, and vegetables to manage complex agricultural pests.

  • Foliar fungicides: Effective against powdery mildew, scab, and rust in grapes, mango, and apples
  • Acaricidal action: Broad-spectrum contact suppression of red spider mites and yellow mites
  • Combination inputs: Formulations blending sulfur with systemic triazoles or synthetic pyrethroids

Application Guidelines, Soil Moisture, and Safety

When applying sulfur fertilizers, ensure adequate soil moisture to facilitate microbial oxidation by Thiobacillus bacteria.

For foliar sprays, avoid applications when ambient temperatures exceed twenty-eight degrees Celsius to prevent sulfur scorching.

Wear protective rubber gloves and dust masks during handling and spraying.

  • Temperature caution: Never apply foliar sulfur during intense midday heat exceeding twenty-eight degrees Celsius
  • Tank agitation: Ensure gentle agitation in the sprayer tank to maintain uniform granule dispersion
  • Safety apparel: Wear protective clothing, rubber gloves, and an approved dust respirator during mixing

Official source

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Central Insecticides Board & Registration Committee ↗

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Common questions

What is Sulphur Mills known for in Indian agriculture?

Sulphur Mills is recognized for developing micronized water-dispersible granule (WDG) sulfur fertilizers and crop protection formulations.

Does elemental sulfur fertilizer have fungicidal properties?

Yes, sulfur releases mild sulfur vapors that disrupt fungal respiration, suppressing powdery mildew and surface mites.

Why should foliar sulfur not be sprayed during high temperatures?

Spraying sulfur when temperatures exceed 28°C causes rapid vaporization that can scorch tender foliage and fruit surfaces.

General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.

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