Phototactic behavior 4: Attractive effects of Trialeurodes vaporariorum adults to light-emitting diodes under laboratory conditions

The phototactic action of the greenhouse whitefly, Trialeurodes vaporariorum (Hemiptera: Aleyrodidae), adults to light-emitting diodes (LEDs) at various luminous intensities and light exposure times was investigated in a Y-maze bioassay chamber, and was compared with a standard luring lamp, which is used in commercial electric traps. Blue LED (97.3%) exhibited the highest potential attraction rate, followed by green LED (96.6%), white LED (93.7%), red LED (93.0%), UV LED (90.3%), yellow LED (89.3%), and IR LED (7.7%). Based on the relative efficiency values, the blue LED was approximately 1.2 times more effective than the luring lamp (84.3%). These results suggest that the blue LED was the most useful for monitoring of T. vaporariorum adults under optimal conditions.