Insecticide: nerve agent site of action. By stimulating sensory neurons and effect by the transducer into electrical signals rice growth regulator, this electrical signal is converted in the body with the junction axonal nerve cells into nerve impulses, in the form of a pulse transmitted along axons to the central nervous system . Axonal conduction in the nervous system are present, it is the site of action of DDT, pyrethrins, tetrodotoxin and other nerve agents, it is known as the second part of the class action. Pesticides Category: Press sources. Organic synthetic pesticides. Such as organochlorines like DDT, BHC, endosulfan, toxaphene Luoyang rice growth regulators, DDT Zhejiang rice growth regulators, BHC was the production of large, wide application of two pesticides, but Yi accumulate in organisms, starting banned or restricted in the early 1970s in many countries.