Phototactic behavior 9: phototactic behavioral response of Tribolium castaneum (Herbst) to light-emitting diodes of seven different wavelengths

The phototactic behavioral responses of Tribolium castaneum adults to light-emitting diodes (LEDs) of seven different wavelengths were determined under various conditions (light exposure times, light sources, and luminance intensities) and compared with those of a black light bulb (BLB) under laboratory conditions. Based on the attractive rate (%) of T. castaneum adults under optimal conditions (50 lx and an 48 h exposure time) in the dark, red LED (625±10 nm) exhibited the highest potential attractive rate (97.8 %), followed by yellow (590±5 nm, 68.9 %), green (520±5 nm, 55.6 %), infrared (IR) (730 nm, 54.4 %), white (450−620 nm, 41.1 %), blue (470±10 nm, 34.4 %), and ultraviolet (UV) (365 nm, 0.06 %) LEDs. In comparison, red LED (97.8 %) was approximately 3.4 times more attractive to T. castaneum adults than the BLB (28.9 %). These results indicate that a red LED trap could be useful to control T. castaneum adults. KCI Citation Count: 2