Quizalofop Ethyl 10% EC is a systemic herbicide widely used in agriculture to control grassy weeds in broadleaf crops. Farmers rely on this herbicide for its selective action against unwanted grasses, ensuring better crop growth and yield. This topic explores the uses, benefits, application methods, and precautions associated with Quizalofop Ethyl 10% EC.
What is Quizalofop Ethyl 10% EC?
Quizalofop Ethyl 10% EC is a post-emergent herbicide belonging to the aryloxyphenoxypropionate (AOPP) group. It is effective in controlling annual and perennial grassy weeds in crops such as soybean, cotton, groundnut, mustard, and pulses. This oil-based emulsifiable concentrate (EC) formulation allows for better absorption and penetration into target weeds.
Key Benefits of Quizalofop Ethyl 10% EC
- Selective Weed Control – Targets grassy weeds without harming broadleaf crops.
- Systemic Action – Absorbed by the leaves and moves throughout the plant, ensuring complete eradication.
- Post-Emergent Application – Applied after weed emergence, making it more effective than pre-emergent herbicides.
- Improved Crop Yield – Eliminates weed competition, allowing crops to utilize nutrients efficiently.
- Rainfast Property – Works effectively even after light rainfall within hours of application.
Crops Suitable for Quizalofop Ethyl 10% EC
This herbicide is used in several broadleaf crops, including:
- Soybean – Controls grassy weeds like Echinochloa and Cynodon dactylon.
- Cotton – Effective against Dinebra retroflexa and Setaria spp.
- Groundnut – Suppresses Brachiaria and Eleusine indica.
- Pulses (Lentils, Chickpeas, and Peas) – Removes Avena fatua and Panicum species.
- Mustard and Sunflower – Prevents growth of invasive grasses.
Weeds Controlled by Quizalofop Ethyl 10% EC
This herbicide is highly effective against narrow-leaved weeds, including:
- Echinochloa crus-galli (Barnyard Grass)
- Cynodon dactylon (Bermuda Grass)
- Digitaria sanguinalis (Crabgrass)
- Eleusine indica (Goosegrass)
- Brachiaria spp. (Signal Grass)
- Setaria spp. (Foxtail Grass)
How to Apply Quizalofop Ethyl 10% EC?
1. Recommended Dosage
- The standard dosage is 400-500 ml per acre (varies based on crop and weed infestation).
- Mix the herbicide with 200 liters of water per acre for even coverage.
2. Application Timing
- Apply 15-20 days after weed emergence for optimal results.
- Ensure weeds are actively growing and not under drought stress.
3. Spraying Method
- Use a knapsack sprayer with a flat fan nozzle for uniform application.
- Maintain proper leaf coverage while avoiding direct application on crops.
4. Precautions During Application
- Avoid spraying during strong winds or rainy conditions.
- Wear protective gear (gloves, masks, and goggles) to prevent skin and eye irritation.
- Do not mix with broadleaf herbicides unless recommended.
Mode of Action of Quizalofop Ethyl 10% EC
Quizalofop Ethyl inhibits acetyl-CoA carboxylase (ACCase), an enzyme essential for fatty acid synthesis in grassy weeds. Without this enzyme, the weeds stop growing, dry out, and die within 10-15 days. This selective action makes it safe for broadleaf crops.
Comparison with Other Herbicides
| Feature | Quizalofop Ethyl 10% EC | Glyphosate 41% SL | Pendimethalin 30% EC |
|---|---|---|---|
| Target Weeds | Grassy Weeds | All Weeds | Pre-Emergent Grasses |
| Selectivity | Selective for Broadleaf Crops | Non-Selective | Selective for Certain Crops |
| Application Time | Post-Emergent | Post-Emergent | Pre-Emergent |
| Crop Safety | Safe for Broadleaf Crops | Can Harm Crops | Prevents Early Weeds |
Precautions and Safety Measures
- Avoid direct contact with skin and inhalation of spray mist.
- Do not store near food or animal feed.
- Dispose of empty containers safely, as per agricultural guidelines.
- Keep away from children and pets.
Quizalofop Ethyl 10% EC is an effective, selective, and widely used herbicide for controlling grassy weeds in broadleaf crops. By following proper dosage, application methods, and safety measures, farmers can maximize their crop yield while ensuring a weed-free environment. Understanding its mode of action, benefits, and application timing helps in achieving the best agricultural outcomes.