Orthene (also known as acephate) is a kind of organophosphate foliar
insecticide which can be used for the treatment of leaf miners,
caterpillars, sawflies and thrips in crops and aphides in vegetables
and horticulture. It is one of the 10 most important organophosphate
insecticides in the 1990s, and is still being widely used today. It
takes effect through inhibiting the activity of acetylcholinesterase
(Ache) after being metabolically converted to methamidophos. Since
it can’t be converted to methamidophos, it is thought to cause no
effect on animals and human beings.