Bromoxynil octanoate

Light yellow low volatile waxy solid, melting point 45 ～ 46℃ . Sublimation at 90℃ /13.33Pa, vapor pressure is 1.9×10-1mPa(25℃ ). Industrial product has slight odor of oil ester, melts above 40 ～ 44℃ . Insoluble in water. solubility at 25℃ : 3mg/L in water, 800g/L in chloroform, 700g/L in xylene, dimethylformamide, 620g/L in ethyl ester, 550g/L in cyclohexanone, 500g/L in carbon tetrachloride, 120g/L in isopropanol, 100g/L in acetone, methanol, ethanol. stable to light and under melting point, hydrolyzed to bromobenzonitrile at pH>9.

It is mainly used for post_x005f emergence control of broadleaf weeds in grasses, flax, garlic, corn, onions, sorghum and newly sown sod. Mixed with other herbicides, it can expand the herbicidal spectrum.

Bromoxynil Octanoate is a selective, contact herbicide used to control broadleaf weeds in various cereal crops, corn, and pastures. As an ester formulation of bromoxynil, it offers improved solubility and compatibility with other agrochemicals. This herbicide is particularly effective against weeds in their early growth stages and is widely used in integrated weed management programs.

Key Features

1. Selective Herbicide: Targets broadleaf weeds while sparing cereal and grass crops.

2. Contact Action: Rapidly affects the foliage of susceptible weeds.

3. Improved Solubility: Ester formulation ensures better performance under field conditions.

4. Tank-Mix Compatible: Can be combined with other herbicides for broader weed control.

Applications

Crops Treated

• Cereals: Wheat, barley, oats, and rye.

• Corn

• Pastures and Grasslands

Weeds Controlled

• Lamb’s Quarters (Chenopodium album)

• Pigweed (Amaranthus spp.)

• Thistle (Cirsium spp.)

• Mustard (Brassica spp.)

• Cocklebur (Xanthium spp.)

Mechanism of Action

Bromoxynil Octanoate inhibits photosynthesis in susceptible weeds by disrupting the electron transport chain in the chloroplasts. This causes oxidative stress, leading to cellular damage and rapid desiccation of the weed tissue.

Advantages

1. Fast Action: Visible effects on weeds within hours of application.

2. Crop Safety: Selective for key cereal and grass crops when applied as directed.

3. Weather Resilience: Performs well under a range of environmental conditions.

4. Resistance Management: Effective rotation partner in herbicide programs.

Safety and Environmental Considerations

Handling and Storage

• Wear appropriate personal protective equipment (PPE), including gloves, goggles, and masks.

• Store in a cool, dry place away from food, feed, and water sources.

Environmental Impact

• Aquatic Safety: Avoid application near water bodies to prevent contamination.

• Soil Binding: Tends to bind to soil particles, reducing leaching potential.

• Non-Target Safety: Can be harmful to non-target broadleaf plants; use with care.

Regulatory Compliance

• Follow local regulations and label recommendations for safe and effective use.

Limitations

• Contact-Only Action: Does not affect weed roots, so regrowth is possible.

• Application Timing: Most effective on young, actively growing weeds.

• Resistance Potential: Over-reliance may lead to resistant weed populations.

Conclusion

Bromoxynil Octanoate is a powerful tool for managing broadleaf weeds in cereals, corn, and pastures. Its rapid action, selectivity, and compatibility with tank mixes make it a versatile choice for farmers. To maximize efficacy and minimize environmental risks, follow recommended application practices and integrate it into a comprehensive weed management program.