Its chemical name is (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionic acid ethyl ester, and it is a highly selective, novel herbicide for foliar treatment in upland fields. Quizalofop-P-ethyl is absorbed through the leaves and stems of weeds, and is then bidirectionally conducted both upwards and downwards within the plant, accumulating in the apical and intercalary meristems, where it inhibits cellular fatty acid synthesis, leading to necrosis of the weeds. It acts rapidly, has stable efficacy, and is not easily affected by environmental conditions such as rainfall, temperature, and humidity. It is suitable for use on a variety of crops including soybeans, sugar beets, rapeseed, potatoes, flax, peas, broad beans, tobacco, watermelons, apples, grapes, cotton, peanuts, broad-leaved vegetables, as well as in fruit orchards, forestry nurseries, and young forest management.