Colorless non-bromine solid. Melting point 212-213.5°C, non-volatile, sublimation at 13.33Pa and 140°C. Solubility in water at 25°C is 50mg/l. Stable and non-corrosive.
The drug can be absorbed by the leaves, inhibiting photosynthesis, respiration and protein synthesis. It can prevent and eliminate broadleaf weeds such as Fuzzy Witch, Brahmi, Field Spinach Field Mustard and so on.
Ioxynil is a selective post-emergent herbicide widely used in agriculture to control broadleaf weeds in cereal crops, including wheat, barley, and oats. It belongs to the nitrile chemical family and is often combined with other herbicides to enhance its effectiveness. Ioxynil is particularly valued for its rapid action and reliability in controlling tough weeds.
Key Features
Selective Herbicide: Targets broadleaf weeds while sparing cereal crops.
Post-Emergent Action: Effective against actively growing weeds.
Rapid Results: Visible effects on weeds within a few days of application.
Broad Compatibility: Often used in combination with other herbicides for broader weed control.
Applications
Crops Treated
Cereal Crops: Wheat, barley, rye, and oats.
Non-Crop Areas: Sometimes used for weed management in non-agricultural areas.
Weeds Controlled
Common chickweed (Stellaria media).
Shepherd’s purse (Capsella bursa-pastoris).
Wild radish (Raphanus raphanistrum).
Cornflower (Centaurea cyanus).
Mechanism of Action
Ioxynil disrupts the photosynthesis process in weeds by inhibiting the electron transport chain in chloroplasts. This leads to a rapid cessation of weed growth, followed by visible symptoms like yellowing and wilting. The herbicide is absorbed through the leaves and acts systemically, making it highly effective against actively growing weeds.
Advantages
Effective Weed Control: Ensures crops have better access to nutrients, water, and sunlight.
Fast-Acting: Quick results reduce competition between crops and weeds.
Selective Action: Protects cereal crops while eliminating problematic weeds.
Tank-Mix Flexibility: Can be mixed with other herbicides for customized weed control solutions.
Safety and Environmental Considerations
Handling and Storage
Always wear personal protective equipment (PPE) such as gloves, goggles, and masks when handling.
Store in a cool, dry place, away from food and animal feed.
Environmental Impact
Toxicity: Harmful to aquatic organisms; avoid application near water bodies.
Persistence: Breaks down relatively quickly in soil, reducing long-term environmental risks.
Regulatory Compliance
Limitations
Conclusion
Ioxynil is a reliable and efficient herbicide for controlling broadleaf weeds in cereal crops. Its selective action, rapid results, and compatibility with other herbicides make it a valuable tool in modern weed management. Proper application and adherence to safety protocols ensure its effectiveness while minimizing environmental risks.
