Rukawat Herbicide (Quizalofop-P-Ethyl 5% EC) by Coromandel
The Specialist Solution for Grassy Weeds in Soybean, Cotton, and Pulses.
Rukawat is a premium post-emergence herbicide manufactured by Coromandel International Limited. It is specifically engineered to target and eliminate aggressive grassy weeds (monocots) without harming your broadleaf crops.
Best For: Farmers facing yield losses of 25% to 50% due to tough 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, making it safe to use even during erratic monsoon weather.
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High Selectivity: Completely safe for broadleaf crops like Soybean and Cotton. It attacks the weed's enzymes, not the crop's.
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Systemic Action: It travels from the leaves down to the roots and rhizomes, ensuring the weed does not grow back.
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Weather Proof: The ethyl ester formulation ensures the chemical penetrates the waxy coating of grass leaves quickly.
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Complete Control: Effective against annual and perennial grasses, including "Makra" (Crowfoot grass) and Volunteer Rice.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Rukawat |
| Technical Name | Quizalofop-P-Ethyl 5% EC |
| IRAC MoA Code | Group 1 (ACCase Inhibitor) |
| Chemical Group | Aryloxyphenoxypropionate ("Fop") |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Class III (Slightly Hazardous) |
How It Works: Mode of Action
Rukawat works by starving the weed of lipids (fats) necessary for cell growth. It is highly mobile within the plant.
- Absorption: The spray lands on the leaves and penetrates the waxy surface within 60 minutes.
- Translocation: The active ingredient moves through the plant's vascular system to the "growing points" (roots and shoot tips).
- Elimination: It blocks the ACCase enzyme, stopping cell division. Weeds stop growing within 24 hours, turn purple/red in 5-8 days, and die completely in 10-15 days.
Note: Because it moves to the roots, it prevents perennial weeds from resprouting.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Soybean | Barnyard grass (Sanwa), Jungle rice, Love grass |
| Cotton | Barnyard grass, Viper grass, Crabgrass |
| Groundnut & Pulses | Jungle rice, Viper grass, Crowfoot grass (Makra) |
| Onion | Crabgrass, Goosegrass, Crowfoot grass |
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 (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Soybean | 300 - 400 ml | 200 L | 1.5 - 2 ml | 95 Days |
| Cotton | 400 ml | 200 L | 2 ml | Harvest Safe |
| Black Gram | 300 - 400 ml | 200 L | 1.5 - 2 ml | 52 Days |
| Onion | 300 - 400 ml | 200 L | 1.5 - 2 ml | 30 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply when weeds are in the 2 to 4 leaf stage. Spraying late (when weeds are flowering) reduces effectiveness.
- Mixing: Do not mix with highly alkaline substances like Bordeaux mixture, as it breaks down the chemical.
- Coverage: Use a Flat Fan or Flood Jet nozzle. Ensure proper coverage of the weed foliage.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Rukawat kill broadleaf weeds?
No. Rukawat is a selective herbicide for grassy weeds only. It will not control broadleaf weeds like Parthenium or Dudhi.
2. Can I use it in paddy (rice) fields?
No. Paddy is a grass crop. Rukawat will kill the paddy along with the weeds. It is toxic to fish, so avoid use near aquaculture.
3. How quickly does it work?
Weeds stop competing for nutrients within 24 hours. Visual symptoms (reddening) appear in 5-8 days, and complete death occurs in 10-15 days.
4. What if it rains after spraying?
Rukawat is rainfast in 1 hour. If it rains one hour after application, you do not need to re-spray.
5. What is the difference between Rukawat and Rukawat X?
Rukawat is a 5% concentration, while Rukawat X is a 10% concentration. Rukawat X requires a lower dose (150-180 ml/acre) but the mode of action is the same.
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. Toxic to fish and aquatic invertebrates.
