Mechanism of resistance to fenoxaprop in Japanese foxtail (Alopecurus japonicus) from China

- Alopecurus japonicus evolves high-level resistance to fenoxaprop-P-ethyl.
- This is the first report of Trp-2027-Cys substitution in A. japonicas.
- A. japonicas confers resistance to APPs and DEN, but not to CHDs.