Pheromone traps have been used in many food-plants, tobacco plants and their storage. The traps are usually designed under experimental conditions on the basis of biological information for each insect. They are used as a monitoring tool to reveal seasonal prevalence, distribution and source of infestation in the plant and storage. To this end, an interval of replacement, trap location from floor, adult ages of males captured, expiry date and time sequence of capturing efficiency is important information. The present study, therefore, was conducted to obtain information on the "New Sorrico^®" trap for the tobacco beetle, Lasioderma serricorne. Unmated males were captured on the 2^nd to 10^th days after emergence. However, unmated males at the ages of 3 to 8 days showed higher activity than other age groups. Few unmated males and mated males were captured on the 1^stand 2^nddays after emergence. Males that had mated on the 3^rd day after emergence were also captured on the 1^st to 9^th days after mating. The numbers of unmated males released within 6 meters from the trap were much higher than those of the unmated males released at the distance of 7.5 meters. The same result was obtained on the mated males. When the pheromone trap was located at 1.5 m from the floor, 40% of the males were captured by the trap. On the other hand, 35 and 25 % were captured at the heights of 3 meters and 0 meters, respectively. Capturing efficiency decreased gradually and linearly until the 5^th week after placement of the trap. For on-going use, traps are located 1.5 m high from floor and at an interval of 10 meters with an expiry date set at one month.