Quinzel Herbicide (Pyrithiobac Sodium 6% + Quizalofop Ethyl 4% MEC) by Nichino India
The Ultimate "One-Shot" Post-Emergence Solution for Grassy and Broadleaf Weeds in Cotton.
Cotton farming faces a massive challenge: weeds like Carpet Weed and Jungle Rice steal nutrients during the critical crop stages (15–60 days), potentially reducing yields by up to 85%. Manual weeding is becoming too expensive and labor is hard to find.
Quinzel by Nichino India solves this by combining two powerful active ingredients in a revolutionary Micro Emulsion Concentrate (MEC) formulation. It offers broad-spectrum control, superior rainfastness, and keeps your fields clean so your cotton can thrive.
Why Choose This Product? Key Benefits
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Advanced MEC Technology:
Unlike old milky emulsions, Quinzel is a transparent Micro Emulsion with nano-sized droplets for instant leaf penetration and superior results. -
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Dual-Action Control:
A single spray targets both Grassy Weeds (using Quizalofop) and Broadleaf Weeds (using Pyrithiobac), eliminating the need for tank mixing. -
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Cost-Effective:
Offers a high Benefit-Cost ratio (approx. 2:1) compared to manual weeding, saving you thousands of rupees per acre in labor costs. -
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Excellent Rainfastness:
Thanks to the MEC formulation, the product is rain-safe within just 2 hours of application. -
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Crop Safety & Recovery:
While temporary yellowing may occur, the cotton plant rapidly detoxifies the chemical and recovers fully within 10–14 days with no yield loss.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Quinzel |
| Technical Name | Pyrithiobac Sodium 6.0% + Quizalofop Ethyl 4.0% MEC |
| IRAC MoA Code | Group 2 (ALS Inhibitor) + Group 1 (ACCase Inhibitor) |
| Chemical Group | Pyrimidinylthiobenzoate + Aryloxyphenoxypropionate |
| Formulation | Micro Emulsion Concentrate (MEC) |
| Toxicity Label | Blue / Green (Low Toxicity - Refer to Label) |
How It Works: Mode of Action
Quinzel employs a systemic, dual-mode attack to ensure no weed is left standing.
- Broadleaf Attack (Pyrithiobac): Inhibits the ALS enzyme, starving the weed of essential amino acids (proteins). Weeds stop growing immediately and die within 14–21 days.
- Grass Attack (Quizalofop): Inhibits the ACCase enzyme, stopping fatty acid synthesis. This destroys cell membranes in growing grasses, causing "dead heart" symptoms.
- Systemic Translocation: The herbicide is absorbed by leaves and moves down to the roots and rhizomes, preventing regrowth.
Note: Cotton plants naturally produce enzymes that detoxify Quinzel, keeping the crop safe while the weeds perish.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Broadleaf Weeds: carpet Weed (Trianthema portulacastrum), False Amaranth (Digera arvensis), Slender Amaranth (Amaranthus viridis), Carrot Grass (Parthenium). |
| Cotton | Grassy Weeds: Jungle Rice (Echinochloa colona), Viper Grass (Dinebra retroflexa), Crowfoot Grass (Dactyloctenium aegyptium), Bermuda Grass (Cynodon dactylon - suppression). |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" and ensure high water volume (150+ Liters) for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Cotton | 400 - 500 ml | 150 - 200 L | 2.0 - 2.5 ml | Refer to Label |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. *Note: Use Flat Fan or Flood Jet nozzles for best coverage.
How to Apply: Best Practices
- Timing: Apply at the 2 to 4 leaf stage of weeds (typically 20–25 Days After Sowing). Do not spray on weeds larger than 5 leaves as efficacy drops.
- Mixing: Use a Flat Fan nozzle. Do not use cone nozzles as they cause drift. Ensure thorough coverage of the weed foliage.
- Coverage: The soil must be moist (field capacity) at the time of application. Weeds under moisture stress will not absorb the herbicide well.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. IMPORTANT: Do not mix with Organophosphate insecticides (like Monocrotophos) as this causes severe crop damage.
Frequently Asked Questions
1. Is it normal for my cotton to turn yellow after spraying?
Yes, mild yellowing or bronzing is a common temporary effect. The crop metabolizes the herbicide and will recover fully within 10–14 days without any yield loss.
2. Does Quinzel control Motha (Sedges)?
No, Quinzel is designed for grasses and broadleaf weeds. It may offer slight suppression of Purple Nutsedge (*Cyperus rotundus*), but it is not a dedicated sedge killer.
3. Can I mix Quinzel with other pesticides?
You should strictly AVOID mixing it with Organophosphate insecticides (e.g., Profenofos, Monocrotophos). This combination stops the cotton plant from detoxifying the herbicide and can kill the crop.
4. What if it rains after spraying?
Due to the advanced Micro Emulsion Concentrate (MEC) formulation, Quinzel is rainfast within 2 hours. If it rains after 2 hours, re-spraying is usually not required.
5. Can I grow wheat after cotton if I use this?
Yes, wheat is generally safe to grow 6 months after application. However, avoid sensitive crops like Spinach, Beetroot, or Mustard immediately after the cotton cycle.
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.
