Benfluralin
The melting point of flufenacet is 65 ～ 66.5℃ , vapor pressure is 0.533×10-4Pa(25℃ ), slightly soluble in water(70mg/l at 25℃ ), easily soluble in organic solvent.
Fluchlor can be used as a herbicide, weeding before bud, and controlling annual narrow-leaved and broad-leaved weeds.
Benfluralin is a pre-emergent herbicide widely used to control annual grasses and broadleaf weeds in a variety of crops, ornamental plants, and non-crop areas. It belongs to the dinitroaniline chemical family and works by inhibiting cell division in the roots of germinating weeds, preventing their establishment.
Key Features
Pre-Emergent Control: Targets weeds before they emerge from the soil.
Broad-Spectrum Activity: Effective against grasses and many broadleaf weeds.
Soil-Applied: Remains active in the soil to provide residual weed control.
Crop Safety: Compatible with many crops, including vegetables, fruits, and ornamentals.
Applications
Crops Treated
Vegetables: Carrots, onions, and beans.
Fruits: Grapes, apples, and citrus.
Ornamentals: Flower beds, shrubs, and nursery plants.
Non-Crop Areas: Industrial sites and landscape maintenance.
Weeds Controlled
Grasses: Crabgrass (Digitaria spp.), barnyard grass (Echinochloa crus-galli), and foxtails (Setaria spp.).
Broadleaf weeds: Pigweed (Amaranthus spp.), chickweed (Stellaria media), and lambsquarters (Chenopodium album).
Mechanism of Action
Benfluralin disrupts microtubule formation in weed cells, which is essential for cell division. By inhibiting this process, it prevents the development of root systems in germinating weeds, effectively stopping their growth before they can compete with crops.
Advantages
Effective Weed Prevention: Stops weeds at the germination stage, reducing competition for nutrients and water.
Long-Lasting Control: Provides residual activity in the soil for extended weed management.
Versatile Use: Applicable in a wide range of crops and non-crop areas.
Reduced Weed Pressure: Helps maintain cleaner fields and gardens.
Safety and Environmental Considerations
Handling and Storage
Wear personal protective equipment (PPE) such as gloves, goggles, and masks during application.
Store in a cool, dry place away from food, water, and feed.
Environmental Impact
Soil Persistence: Moderately persistent; follow label instructions to minimize environmental impact.
Aquatic Toxicity: Harmful to aquatic organisms; avoid application near water bodies.
Wildlife: Minimal impact on non-target organisms when used as directed.
Regulatory Compliance
Approved for use under specific guidelines in many countries. Always adhere to local regulations for application and disposal.
Limitations
Pre-Emergent Only: Ineffective against weeds that have already emerged.
Crop-Specific Use: Requires careful selection to avoid crop injury.
Environmental Sensitivity: Risk of runoff into nearby water sources if not managed properly.
Conclusion
Benfluralin is a reliable pre-emergent herbicide that provides effective weed control across a range of crops and landscapes. Its mode of action and residual soil activity make it a valuable tool for preventing weed establishment and reducing competition. Proper application and adherence to environmental precautions ensure its safe and efficient use.
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