Abstract: Effectiveness of color of the board, and hanging height, location, facing direction, and time of day in setting the traps for attracting leafhoppers, Cicadella viridis, in a cotton field was studied. It was found that yellow captured significant more of the adult insects than other colors. The height and orientation in hanging the traps did not alter the color preference of the insects. More leafhoppers were caught in the yellow traps placed 1 m from edges or at the center of the field than those placed on the ridge between two fields. Most adult leafhoppers were captured between the hours of 19:00 to 07:00 in a day. The results obtained would be useful for the establishment of an integrated management program on the cotton fields for the pest control.