Technical Mastery: Breaking the Fungal Resistance Cycle

Most dealers sell “bottles,” but we provide Science. To protect your crop, you must understand the formulation codes and active ingredients to avoid wasting money on ineffective sprays:

• Systemic Power (SC/WG): Ingredients like Difenoconazole and Tebuconazole are absorbed into the plant’s vascular system, protecting new growth and curing deep-seated infections.
• Contact Shield (WP): Products like Copper Oxychloride 50% WP and Sulphur create a protective barrier on the leaf surface, killing spores before they penetrate the plant tissue.
• The “Double-Action” Advantage: We specialize in mixtures like Metalaxyl + Mancozeb (for Blight) and Azoxystrobin + Chlorothalonil, which use two distinct modes of action to prevent the fungus from building resistance.

Zaraidawai Field Guide: Application & Timing

Expert Fungicide FAQs: Laboratory-Grade Answers

Q: Why did my fungicide spray fail to stop the disease?
A: This usually happens due to Poor Coverage or Resistance. If you use the same technical (e.g., only Mancozeb) every year, the fungus survives. Zaraidawai Recommendation: Rotate between a systemic (like Score) and a contact fungicide (like Copper) every 14 days.

Q: Can I mix fungicides with my NPK or Urea spray?
A: Most are compatible, but Copper-based fungicides should never be mixed with highly acidic fertilizers as it causes “Crop Burn.” Always perform a “Jar Test” first.

Q: How long must I wait after spraying before I can harvest (PHI)?
A: This is the Pre-Harvest Interval. For vegetables, it varies from 3 days (for specific leaf spot controls) to 14 days. Our agronomists provide the exact PHI for every product to ensure your produce is safe for the market.

Q: What is the best weather for spraying fungicides?
A: Avoid spraying in high wind or mid-day heat. The best time is early morning after the dew has dried, or late evening. This ensures the chemical stays on the leaf and doesn’t evaporate or wash off.