The object of this study is to observe the attraction of specific wavelengths against Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae). The attractive effects was examined by the high power light-emitting diodes (HPLEDs) in the dark room at 27±0.5°C and 60±0.5% relative humidity. Evaluated specific wavelengths were blue (470±10 nm), green (520±5 nm), yellow (590±5 nm) and red (625±10 nm) HPLEDs. When a light exposure time was fixed at 60 min and tested with various illuminance intensity at 20, 40, 60, 80, and 100 lux, the attraction rate of the green HPLED at 80 lux was the most effective (94.4%) to B. tabaci, followed by yellow HPLED of 20 lux (78.9%), blue HPLED of 60 lux (71.1%), and red HPLED of 20 lux (60.0%), respectively. According to the change of light exposure time (10, 20, 30, 40, 50, and 60 min), green HPLED showed the potential attractive effects under the 40 min and 50 min. These results suggest that it is possible to develop a green HPLED trap for attracting, monitoring, and lighting system against B. tabaci.

• Hoi-Seon Lee(Department of Agricultural Chemistry, Chonbuk National University)