Oxyfluorfen
Description
Oxyfluorfen is a highly effective active ingredient belonging to the diphenyl ether chemical class. It acts as a selective contact herbicide, widely utilized in global agriculture to provide robust control against a broad spectrum of broad-leaved weeds and certain grasses that compete with primary crops.
The herbicidal mechanism of action involves the inhibition of the protoporphyrinogen oxidase enzyme. This disruption triggers a metabolic cascade that leads to the accumulation of toxic compounds within the plant cells, subsequently resulting in the rapid destruction of cellular membranes and the total desiccation of susceptible weed species upon contact.
Oxyfluorfen is primarily applied in crops such as sunflowers, onions, garlic, cabbage, vineyards, and various orchards. It is recognized for its ability to create a persistent residual barrier on the soil surface, which effectively prevents the germination and emergence of new weed flushes for an extended period after the initial application.
The efficacy of this herbicide is significantly influenced by environmental factors, particularly sunlight intensity, which accelerates the herbicidal activity. Farmers must ensure precise application techniques to avoid drift onto emerging crop foliage, as accidental contact may cause phytotoxic symptoms, even though the compound is highly selective when used correctly.
- Excellent control of key broad-leaved weed species.
- Long-lasting residual soil activity.
- Enhanced efficacy in high-light conditions.
- Versatility in pre-emergence and post-emergence weed management strategies.
Operators handling oxyfluorfen must follow strict safety protocols, including the use of appropriate personal protective equipment (PPE). Given its chemical properties, it is essential to prevent environmental contamination, particularly in aquatic ecosystems, and to follow all regional guidelines regarding pesticide storage, handling, and application procedures.
Status in the European Union
Approved in the EU
- CAS number
- 42874-03-3
- Category (EU)
- HB - Herbicide
- Approved from
- 01.01.2012
- Approval until
- 31.05.2027
- ADI
- 0.003 mg/kg bw/day
- ARfD
- 0.3 mg/kg bw
- AOEL
- 0.013 mg/kg bw/day
Regulatory status data: EU Pesticides Database © European Union, CC BY 4.0. EU status is for reference only and does not replace national registration in your country.