Flufenacet

Flufenacet is an oxyacetanilide herbicide applied before crops have emerged. It was registered for use in the United States in 1998 and the European Union in 2004.

Flufenacet is an oxyacetanilide herbicide applied before crops have emerged. It was registered for use in the United States in 1998 and the European Union in 2004.

Usage

In temperate Europe, flufenacet is commonly used in cereal crops to control grass weeds such as black-grass (Alopecurus myosuroides) that have evolved resistance to other herbicides and is applied in combination with other herbicides including pendimethalin, diflufenican, flurtamone, metribuzin and aclonifen. in the United Kingdom, resistance to flufenacet had begun to be found in black-grass and rye-grass. it was the most widely applied herbicide and third most widely applied pesticide in England, being used on 2.9 million hectares.

Environmental fate

Flufenacet and its metabolites can be classified as PFAS substances, or so-called "forever chemicals". They break down to produce trifluoroacetic acid (TFA), a persistent substance that pollutes groundwater.

Toxicity

In September 2024, the European Food Safety Authority has concluded that flufenacet is an endocrine disruptor of humans and wild mammals via the thyroid (T)-modality. The active substance falls under the exclusion criteria of the Plant Protection Products Regulation. Re-authorisation of the active substance by the EU Commission is therefore no longer possible. The EU Commission will draw up a proposal for the non-authorisation of flufenacet, including withdrawal and sunset periods, which the EU member states are expected to vote on in spring 2025. In March 2025, the EU agreed to ban flufenacet, effective from June 2025, but with the option for individual states to allow use for a further year.

References

External links

Text derived from https://en.wikipedia.org/w/index.php?oldid=1369419702 under CC BY-SA 4.0; modifications have been made.