
Bavistin Fungicide
Bavistin (Carbendazim 50% WP) from Crystal Crop Protection Ltd is a trusted broad‑spectrum fungicide. It controls leaf spots, blight, powdery mildew and other fungal diseases, plus works as seed treatment for healthier crops.
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Bavistin Fungicide (Carbendazim 50% WP): Complete Guide for Farmers
The "Original" systemic hero for protecting Paddy, Wheat, and Vegetables against fungal diseases.
Bavistin (Carbendazim 50% WP) is a legendary broad-spectrum fungicide now brought to you by Crystal Crop Protection. Trusted by Indian farmers for decades, it is a "magic bullet" that works from the inside out. Whether you are dealing with Blast in paddy, Loose Smut in wheat, or fungal issues in vegetables, Bavistin offers a reliable and cost-effective solution.
It acts as both a shield (prevention) and a cure (eradication), ensuring your crop stays green and healthy.
Why Choose This Product? Key Benefits
- ⏱️Rapid Systemic Action: Absorbed quickly by roots and leaves, it moves upward (acropetally) to protect new growth.
- ?️Dual Protection Power: Works as a Preventive (stops infection before it starts) and Curative (kills fungus inside the plant).
- ⏳Long Shelf Life: Highly stable formulation that remains effective for up to 2 years under standard storage.
- ?️Weather Resistant: Sticks well to plant surfaces and becomes rainfast within 2-3 hours of application.
- ?Plant Growth Promotion: Keeps crops green and healthy ("Phytotonic effect") leading to better quality yields.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Bavistin |
| Technical Name | Carbendazim 50% WP |
| IRAC MoA Code | Group 1 (Benzimidazole) |
| Chemical Group | Benzimidazole Carbamates |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Green Label (Slightly Toxic) |
How It Works: Mode of Action
Bavistin works by targeting the cell division process of the fungus. Here is the step-by-step mechanism:
- Absorption: Upon spraying, the active ingredient (Carbendazim) is rapidly absorbed by the plant surface (leaves/stems) or roots.
- Disruption: It binds to the "tubulin" protein inside the fungal cells. This prevents the formation of microtubules, which are essential for cell division.
- Elimination: Without cell division (mitosis), the fungus cannot grow or reproduce. The infection is halted ("Mitotic Arrest"), and existing fungal threads (hyphae) die off.
Note: Because it moves systemically, it protects parts of the plant that may not have been directly sprayed.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Rice (Paddy) | Blast, Sheath Blight, Sheath Rot |
| Wheat & Barley | Loose Smut (Seed Treatment) |
| Vegetables (Tomato, Brinjal, Chilli) | Early Blight, Fruit Rot, Anthracnose, Powdery Mildew |
| Fruit Crops (Apple, Grapes) | Scab, Anthracnose, Downy Leaf Spot |
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) |
|---|---|---|---|---|
| Paddy (Rice) | 250 – 500 g | 150 – 200 L | 1.5 – 2.5 g | 30 – 60 |
| Tomato & Chilli | 150 – 300 g | 150 – 200 L | 1 – 1.5 g | 3 – 7 |
| Groundnut | 90 – 200 g | 150 – 200 L | 0.5 – 1.0 g | 14+ |
| Apple / Grapes | N/A (High Vol) | As required | 0.5 – 1.0 g | 7 – 14 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. Note: For Wheat Loose Smut, use 2g/kg as Seed Treatment.
How to Apply: Best Practices
- Timing: Apply as a preventive measure or at the very first sign of disease. For Loose Smut, apply only as a seed treatment before sowing.
- Mixing: Bavistin is a Wettable Powder (WP). Pre-mix the required quantity in a small bucket of water to form a smooth paste (slurry) before adding it to the main tank.
- Coverage: Ensure thorough coverage of the foliage. Use a hollow cone nozzle for best results.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not spray against the wind.
Frequently Asked Questions
1. Is Bavistin banned for Basmati Rice?
Yes, temporary bans often apply in Punjab and UP during the export season to meet EU norms. Always check with your local agriculture officer before using it on export-quality Basmati.
2. Can I mix Bavistin with other pesticides?
Yes, it is compatible with most insecticides like Imidacloprid and Chlorpyrifos. However, DO NOT mix with alkaline substances like Bordeaux Mixture or Lime Sulphur.
3. What is the price of a 500g pack?
The average market price for a 500g pack of Crystal Bavistin is between ₹600 and ₹900, depending on your location and retailer.
4. How long does the protection last?
Bavistin provides protection for 10–14 days. If disease pressure is high, repeat the spray after 10 days, but rotate with a different fungicide to prevent resistance.
5. Can it cure disease after it has spread?
It is effective in the early stages (incubation period) due to its curative action. However, for heavy infestation, it is best used in a tank mix with contact fungicides like Mancozeb.
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.


