The paper proposes a new approach to model an insect surveillance network as synchronous network systems, systems consist of components running simultaneously. In the network, insects and surrounding environments compose a physical system of which executions proceed concurrently in synchronous rounds. This system is synchronized with a synchronous wireless sensor network, the observation network. The simulation of the case study Brown Planthoppers surveillance network in the Mekong Delta provides some useful information in managing pest insects as well as emerges the roles of wireless sensor network in monitoring environments.