The C-DAIS pheromene insect-trapping system has been designed in accordance with the behavior of noctuid moths and convenience of usage. The system per se is manufactured with no connecting parts with facility at two points in the box to prevent the escape of trapped moths. A plastic bottle can be connected to the bottom of the box to enlarge the space for trapped insects. Compared with the standard insect-trapping system, the C-DAIS system exhibited 41% and 440% more capturing capacity for Spodoptera litura and Spodoptera exigua, respectively. The installation and dismantle of C-DAIS system and changing of bait are convenient and easy for efficient as well as economical field operations. A patent for this system has been granted by the Central Standard Bureau, Ministry of Economics.