ACTION
Active ingredient
TARGA component, Quizalofop-ethyl is a racemate with an asymmetric carbon atom at the α-position of the propionic acid moetiy. The active isomer is the R enantiomer, which is known as Quizalofop-P-ethyl.

Mode of action
Quizalofop-P-ethyl is hydrolyzed in plant to Quizalofop-P (acid form of Quizalofop-P-ethyl), which was proven to be an inhibitor of fatty acids synthesis through acetyl-CoA carboxylase (ACCase) inhibition.

Selectivity
Quizalofop-P-ethyl selectively controls only grass weeds from other plants. While Quizalofop-P (active form of Quizalofop-P-ethyl) inhibits the ACCase from grass family (gramineous) plant, it does not affect the ACCase from other than the grass family plant, so it is highly safe for non-gramineous crops.
