Ryusei Herbicide (Quizalofop-p-ethyl 5% EC) – The Specialist for Grassy Weeds
Stop losing 30-70% of your yield to grassy weeds. Ryusei is the Japanese-quality solution for precision weed control in Soybean, Cotton, and Groundnut.
Ryusei (Quizalofop-p-ethyl 5% EC) is a systemic, post-emergence herbicide brought to you by IFFCO-MC. It is specifically designed to kill tough annual and perennial grasses without harming your broadleaf crops. By stopping the production of lipids in weeds, it ensures your crop gets 100% of the nutrition, sunlight, and water it deserves. It is the perfect labor-saving alternative to manual weeding, reducing costs by nearly 80%.
Best For: Farmers facing labor shortages and heavy infestation of weeds like Barnyard grass and Viper grass.
Why Choose This Product? Key Benefits
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Rapid Rainfastness: Absorbs into the leaf within 1 hour. Even if it rains 60 minutes after spraying, the product remains effective.
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100% Crop Safety: Highly selective chemistry. It kills grasses but leaves broadleaf crops (Soybean, Cotton, Pulses) completely unharmed.
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Systemic Action: It doesn't just burn the leaves; it translocates to the roots and rhizomes, preventing weed regrowth.
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Cost Efficient: At ₹500–₹600 per acre, it is significantly cheaper than manual labor (which costs ₹2000–₹3000 per acre).
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Broad Spectrum: effectively controls stubborn weeds like Echinochloa, Dinebra, and volunteer paddy.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Ryusei |
| Technical Name | Quizalofop-p-ethyl 5% EC |
| IRAC MoA Code | Group A (ACCase Inhibitor) |
| Chemical Group | Aryloxyphenoxypropionate ("Fops") |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Blue / Green Triangle (Moderately Toxic) |
How It Works: Mode of Action
Ryusei works by targeting the specific enzyme (ACCase) found only in grasses, which is responsible for lipid (fat) synthesis.
- Absorption: The active ingredient (Ethyl ester) rapidly penetrates the waxy leaf cuticle of the weed.
- Translocation: It moves through the phloem to the growing tips (meristems) of the shoot and roots.
- Inhibition: It stops the production of new cells. The weed stops growing within 2 days, turns yellow/purple in 5-8 days, and completely dies in 10-20 days.
Note: Because it is systemic, you may not see visible results for the first 48 hours, but the weed has already stopped competing with your crop.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Soybean | Barnyard Grass (Echinochloa), Viper Grass (Dinebra), Crabgrass |
| Cotton | Viper Grass, Barnyard Grass, Volunteer Jowar |
| Groundnut & Onion | Crowfoot Grass (Dactyloctenium), Goose Grass, Crabgrass |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Do not rely solely on "ml per tank" as tank sizes vary.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Soybean | 300 – 400 ml | 150 – 160 L | 2.0 – 2.5 ml | 90 – 100 |
| Cotton | 400 ml | 150 – 160 L | 2.5 ml | 94 |
| Onion / Black Gram | 300 – 400 ml | 150 – 160 L | 2.0 – 2.5 ml | 7 – 52* |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. *For Onion, PHI varies based on harvest type (Green vs Bulb).
How to Apply: Best Practices
- Timing: Spray when weeds are at the 2 to 4 leaf stage. This is typically 20–25 days after sowing (DAS). Weeds larger than 4 leaves are harder to kill.
- Mixing: Do NOT mix with broadleaf herbicides (like Imazethapyr) in the same tank, as this reduces efficacy. If needed, spray Ryusei 3 days apart.
- Coverage: Use 150–160 Liters of water per acre. Low water volume is the #1 cause of failure because grass leaves are narrow and hard to hit. Use a Flat Fan or Flood Jet nozzle.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not wash spray tanks near fish ponds (Toxic to fish).
Frequently Asked Questions
1. Can I use Ryusei on Maize (Corn) or Sugarcane?
No. Maize, Sugarcane, and Rice are grasses (Monocots). Ryusei will kill or severely damage these crops. It is only for broadleaf crops.
2. Will it kill broadleaf weeds like Parthenium?
No. Ryusei is a specific "graminicide" (grass killer). It does not affect broadleaf weeds or sedges (Motha).
3. How long does it take to see results?
You will see yellowing of leaves in 5–7 days. Complete death of the weed happens in 15–20 days.
4. What happens if it rains after spraying?
Ryusei is rainfast in 1 hour. If it rains 60 minutes after application, you do not need to re-spray.
5. What is the shelf life of the product?
When stored in a cool, dry place, the product is stable for 2 years from the date of manufacture.
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. This product is toxic to aquatic organisms; avoid contamination of water bodies.
