Rice plants released complex volatiles that were considered as signal molecules respond to insects. Methyl jasmonate (MeJA)

Methyl salicylate (MeSA) and Linalool (Lin) were three of the most important. They can induce chemical defenses of the plants directly or indirectly. In order to understand the effects of rice volatiles on the community structure and olfactory behavior of arthropods in the rice field

the effects of three volatiles on the arthropods population and community in the fields were studied in this paper; and the electroantennogram responses of three volatiles were the other focus in this paper The results showed that MeSA can influenced the density of insects marked. In the later paddy field

the insect density of MeSA treated group was significant more than other groups. The higher the concentrations of Linalool and MeJA are

the more scopes of the Parasitoids EAG changed. The EAG changes of the Parasitoids stimulated by 1/50 MeJA and Linalool were much more higher than the EAG changes when stimulated by 1/5000.