Fenitrothion is a selective acaricide and contact insecticide of low ovicidal properties. It is a brown to yellow liquid with a characteristic odour. Fenitrothion belongs to the organophosphate family of insecticides. It acts by inhibiting cholinesterase, thus it is an effective pesticide against a wide range of pests such as chewing, penetrating, and sucking insect pests. These pests include locusts, coffee leaf miners, wheat bugs, rice stem borers, grain weevils, and grain beetles on orchard fruits, cereals, cotton, forests, and vegetables. Fenitrothion is also an effective household insecticide as well as vector control agent for malaria.