EPN Making Plant

Abstract

Organophosphorus insecticide is a synthetic farm chemical which has been continuously developed since 1937 when Bayer of Germany first developed it. This insecticide has outstanding properties and performance; strong power of killing harmful insects, a wide variety of applications, contact, stomach and gas poisoning effect, and excellent permeability and osmosis. It thus has an unparalleled effect against insects harmful to rice, fruits and other agricultural crops which insects can hardly be destroyed by other insecticides, thereby contributing greatly to farm production increases. EPN is a variety of organophosphorus insecticide first developed in the United States in 1949. It is the most widely used agricultural chemical, only next to parathion, in the world today. Its direct insect killing effect is somewhat weaker than parathion, but its remaining effect is longer because of its relative stability against hydrolysis. Thus its actual killing effect on insects is almost similar to that of parathion, though its osmosis in a plant is relatively weak.