Technical Abstract: The demand for brown stink bug, Euschistus servus (Say) (Heteroptera: Pentatomidae) management in corn and other crops is increasing in recent years. To identify the most effective time during a day for insecticide application, diurnal movement of stink bugs at its first peak inside and near the corn fields (at flowering time) was monitored. The stink bug movement was monitored using mark-release-recapture, and pheromone trap capture data. While mark-release-recapture method was not effective, the pheromone trapping technique was effective in monitoring diurnal movements near and in the corn fields. The number of stink bugs captured in pheromone traps indicated two active periods of moving throughout a day; they are in the mornings and evenings, respectively. The ramification of the findings in pest management will also be discussed.