Insecticides: insecticides on maize regulators nerve agents, which means that special modifiers Luoyang corn, the main effect of these pesticides insect nervous system, thus making it poisoning and death. Nerve agent site of action: Some nerve agents such as Neem and other antifeedants sensory neurons can act on this, the site of action known as the first class action site. Pesticides Category: Press sources. Botanical insecticide. About 1,000 kinds of plants around the world have more or less on the insect virulence. There are a wide range of applications pyrethrum, rotenone and tobacco. In addition, some plants also contains similar juvenile hormone, Precocene, molting hormone active substances. An isolated from the root bark acuminata, bark or fruit camptothecin SPP.AND has a strong role in infertility.