Vayobel
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Vayobel® Herbicide (Beflubutamid 2.5% GR): The Ultimate Solution for Rice Weed Control
A revolutionary granular herbicide designed to protect transplanted rice from resistant grasses, sedges, and broadleaf weeds.
Rice farming in India is facing a tough challenge: "Super Weeds" that no longer die with older chemicals. Vayobel® by FMC provides a powerful answer. With its Novel Mode of Action, it tackles stubborn weeds that survive standard treatments like Bispyribac-sodium.
Vayobel® (Beflubutamid 2.5% GR) offers a complete "whole farm" solution, ensuring your paddy starts clean and stays clean during the most critical growth stage.
Why Choose This Product? Key Benefits
- ⏱️Perfect Early Start: Apply within 0–3 Days After Transplanting (DAT) to kill weeds before they emerge.
- ?️Resistance Breaker: Features a unique Group 12 chemistry that controls weeds resistant to older herbicides.
- ⏳Long-Lasting Control: Provides residual protection for 30–40 days, covering the critical crop-weed competition period.
- ?️Easy Application: A Granular (GR) formula that sinks in water—no spray pumps required. Just mix with sand and broadcast.
- ?Crop Safety: Highly selective to rice plants, ensuring no shock or yellowing when applied correctly.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Vayobel® |
| Technical Name | Beflubutamid 2.5% GR |
| IRAC MoA Code | Group 12 (PDS Inhibitor) |
| Chemical Group | Phenoxybutanamide |
| Formulation | Granule (GR) |
| Toxicity Label | Blue Triangle (Caution) |
How It Works: Mode of Action
Vayobel works by inhibiting the Phytoene Desaturase (PDS) enzyme. This unique mechanism is commonly known as the "bleaching" effect.
- Stops Protection: It blocks the weed's ability to produce carotenoids (pigments that protect chlorophyll from sunlight).
- Sunlight Attack: Without this protection, sunlight destroys the weed's chlorophyll through photo-oxidation.
- Visual Death: The emerging weeds turn white (bleached) and die due to energy starvation and cellular damage.
Note: This mode of action is completely different from ALS or ACCase inhibitors, making it effective against resistant weed biotypes.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Transplanted Rice | Barnyard Grass (Echinochloa spp.), Viper Grass |
| Transplanted Rice | Sedges (Cyperus difformis, Cyperus iria) |
| Transplanted Rice | Broadleaf Weeds (Ludwigia, Eclipta alba) |
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) | Application Method | Water Condition | PHI (Days) |
|---|---|---|---|---|
| Transplanted Rice | 4000 g (4 kg) | Mix with sand/fertilizer | Standing Water | Label / Advisory |
*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 earlier, the better.
- Mixing: Mix the 4 kg pack with 10–20 kg of dry sand or fertilizer to ensure uniform broadcasting across the field.
- Coverage (The "Lock-in"): Ensure the field has standing water (2–5 cm). Do not drain the water for 3 to 5 days after application. This creates a chemical barrier on the soil.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid use near aquaculture (fish ponds).
Frequently Asked Questions
1. Does Vayobel control weeds that Bispyribac-sodium cannot?
Yes. Vayobel uses a different mode of action (PDS Inhibition) that works against weeds that have developed resistance to ALS inhibitors like Bispyribac-sodium.
2. Do I need a spray pump to use Vayobel?
No. Vayobel comes in a granular (GR) form. You simply mix it with sand or fertilizer and broadcast it by hand, saving labor costs.
3. What is the most critical step for success?
Water management. You must maintain standing water in the field for 3 to 5 days after application to let the granules dissolve and seal the soil surface.
4. Is it safe for the rice crop?
Yes, rice plants have a natural ability to metabolize Beflubutamid, making it safe when applied according to the label instructions.
5. Can I use this in fields with fish farming?
No. Beflubutamid is toxic to aquatic life. Do not use in fields where aquaculture is practiced or where water drains directly into fish ponds.
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.
