Blue Copper Fungicide
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Crystal Blue Copper Fungicide (Copper Oxychloride 50% WP)
The Ultimate Shield Against Fungal and Bacterial Crop Diseases
Crystal Blue Copper is a powerful, broad-spectrum contact fungicide and bactericide. It acts as a protective barrier on your plants, stopping diseases before they can enter the leaf surface. Whether you are battling Downy Mildew, Blights, or Bacterial Cankers, Blue Copper provides the reliable defense modern farmers need.
Best For: Grapes, Potatoes, Tomatoes, Citrus, Pomegranate, and plantation crops.
Why Choose This Product? Key Benefits
- ⏱️Immediate Protection: Creates a toxic barrier on the leaf surface that kills fungi and bacteria immediately upon contact.
- ?️Dual Action Power: Unlike most fungicides, Blue Copper effectively controls both fungal diseases and bacterial infections simultaneously.
- ⏳Long-Lasting Stickiness: The fine particle size ensures excellent adhesion to leaves, providing protection for days or even weeks.
- ?️Rain Fastness: Formulated to resist washing off during light rains, making it ideal for monsoon disease management.
- ?Resistance Fighter: Its multi-site mode of action prevents pathogens from developing resistance, making it a perfect partner for tank mixes.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Crystal Blue Copper |
| Technical Name | Copper Oxychloride 50% WP |
| IRAC MoA Code | M1 (Multi-Site Contact) |
| Chemical Group | Inorganic Copper |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Blue/Green Triangle (Harmful) |
How It Works: Mode of Action
Blue Copper works as a Multi-Site Contact Fungicide. It remains on the leaf surface and releases copper ions when moisture is present.
- Contact & Release: The powder sticks to the plant. When fungal spores or bacteria release moisture (acids), they trigger the release of Copper ions ($Cu^{2+}$).
- Absorption: The pathogen unknowingly absorbs these toxic copper ions.
- Destruction: The copper disrupts the pathogen's proteins and enzymes, suffocating the cell and causing the membrane to leak, leading to rapid death.
Because it attacks multiple parts of the cell at once, it is very difficult for diseases to become resistant to Blue Copper.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Grapes & Fruits | Downy Mildew, Anthracnose |
| Tomato & Potato | Early Blight, Late Blight, Bacterial Spot |
| Citrus & Pomegranate | Canker, Bacterial Blight (Oily Spot), Fruit Rot |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Vegetables (Tomato/Chilli) | 500g - 1kg | 200 - 400 L | 2.5g | 7 - 10 |
| Orchards (Citrus/Pomegranate) | Variable (Tree Size) | 500 - 1000 L | 3.0g | Variable |
| Grapes | Variable | Variable | 2.0g - 2.5g | 21 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply preventively (before disease is seen) or immediately upon weather forecasts predicting rain or fog.
- Mixing: Do not dump powder directly into the tank. Mix it with a little water in a bucket first to make a smooth "cream," then add to the tank.
- Coverage: Ensure full coverage, especially on the underside of leaves where blight often starts. Use a hollow cone nozzle for fine misting.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Can I mix Blue Copper with antibiotics?
Yes. For crops like Pomegranate and Citrus, mixing Blue Copper with Streptocycline enhances control against bacterial diseases.
2. Is it safe to mix with all fertilizers?
No. Never mix with acidic products (like Phosphoric acid) or Aliette. Acidic mixtures cause the copper to release too fast, which will burn your leaves.
3. Can I use this in organic farming?
Yes, Copper Oxychloride is generally permitted in organic farming as a restricted input, but always check your specific certification standards.
4. Why is the powder blue/green?
The color acts as a visual marker. It helps you see exactly where you have sprayed, ensuring you don't miss any spots on the foliage.
5. Will it cure a disease that is already bad?
Blue Copper is primarily a "protectant." It works best to prevent spread. For established infections, mix it with a curative systemic fungicide.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application.