Vayobel® Herbicide (Beflubutamid 2.5% GR): The Ultimate Solution for Weed Control in Paddy
Stop resistant weeds in their tracks with FMC's advanced "Bleaching" technology.
Rice farming in India is facing a tough challenge: "Super Weeds." Old herbicides are no longer working effectively against stubborn grasses and sedges. Enter Vayobel® by FMC Corporation. Designed specifically for Transplanted Rice, this powerful granular herbicide introduces a novel chemical (Beflubutamid) that weeds have never faced before. It provides a clean, weed-free start to your crop, ensuring that your fertilizer feeds your rice, not the weeds.
Don't let weeds steal your yield. Switch to the new standard in paddy protection.
Why Choose This Product? Key Benefits
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Early Action: Applied within 0-3 days of transplanting, it kills weeds before they even emerge, giving your paddy a head start.
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Breaks Resistance: Excellent against tough weeds like Barnyard Grass and Sedges that survive other common sprays (ALS inhibitors).
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Long-Lasting Control: Provides a protective chemical barrier on the soil for 30-40 days, covering the most critical growth period.
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Easy Granular Application: No need for spray pumps. The specialized granules sink through standing water and spread evenly across the soil.
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Crop Safe & Yield Boosting: Highly safe for rice plants when used as directed, helping maximize tillering by removing weed competition.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Vayobel® |
| Technical Name | Beflubutamid 2.5% GR |
| IRAC MoA Code | Group 12 (PDS Inhibitor) |
| Chemical Group | Phenoxybutanamide |
| Formulation | GR (Granule) |
| Toxicity Label | Blue/Green (Caution) |
How It Works: Mode of Action
Vayobel® works differently from traditional herbicides. It targets the Phytoene Desaturase (PDS) enzyme. Here is the simple 3-step process:
- Absorption: Upon application, the granules dissolve in the paddy water, and the chemical is absorbed by the roots and shoots of germinating weeds.
- Blockade: It stops the weed from producing carotenoids (protective pigments that act like "sunscreen" for plants).
- Bleaching & Death: Without this protection, sunlight destroys the weed's chlorophyll. The weed turns white (bleached) and dies shortly after emerging.
Because this mechanism is unique, it easily kills weeds that have developed immunity to other common chemicals.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Transplanted Rice (Paddy) | Barnyard Grass (Echinochloa crus-galli) [Image of Echinochloa crus-galli barnyard grass] |
| Transplanted Rice (Paddy) | Sedges (Cyperus difformis, Cyperus iria) |
| Transplanted Rice (Paddy) | Broadleaf Weeds (Ludwigia, Eclipta) |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Since this is a granule, manual broadcasting is the method.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Transplanted Rice | 4,000 g (4 kg) | Apply in standing water (2-5 cm) | N/A (Granules) | As per Label |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply strictly between 0 to 3 Days After Transplanting (DAT). The field must be weed-free at the time of application.
- Mixing: Mix the 4kg pack with 10-20kg of dry sand or fertilizer to ensure you can spread it evenly across the whole acre.
- Coverage: Broadcast uniformly by hand. Avoid leaving any strips of land untreated.
- Water Management: Ensure there is 2-5 cm of standing water in the field. Keep this water locked in for 3-5 days. Do not drain or irrigate during this time to let the chemical set.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Vayobel kill weeds that are already big?
No. Vayobel is a pre-emergent herbicide. It is best used to prevent weeds from growing. Apply it within 3 days of transplanting for best results.
2. Can I use Vayobel in Direct Seeded Rice (DSR)?
Currently, it is specifically recommended for Transplanted Rice. Please consult an agronomist for DSR usage.
3. What happens if I drain the water immediately after application?
Draining the water will wash away the herbicide, drastically reducing its effectiveness. You must hold the water for at least 3 to 5 days.
4. Is it safe for my rice crop?
Yes, rice plants have a natural ability to break down Beflubutamid, making it safe for the crop while deadly to weeds.
5. Can I use it for fish farming (aquaculture)?
No. This product is toxic to fish. Do not use it in fields where fish farming is practiced or near water bodies used for aquaculture.
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.
