The major route of degradation of Quizalofop-P-tefuryl under aerobic conditions proceeds via hydrolysis to form its corresponding acid, Quizalofop-acid (QUIZ) and alcohol, tetrahydrofurfuryl alcohol (THFA). Further degradation, under non-sterile conditions, proceeds by hydrolysis and hydroxylation to form 4-(6-chloroquinoxalin-2-yloxy)phenol (CQOP), 6-chloro-2-hydroxyquinoxaline (CHQ), 2-[4-(6-chloro-3-hydroxyquinoxalin-2-yl)oxy]phenoxypropionic acid (QUIZ-OH), 2,3-dihydroxy-6-chloroquinoxaline (CHHQ) and tetrahydrofuroic acid (THFAC). Ultimately, Quizalofop- P-tefuryl is mineralised to carbon dioxide. In addition a significant part of disappearance is caused by conversion into binding compounds (bound residues).