Abstract
Phototactic responses of maize weevil, Sitotroga zeamais, adults to five light-emitting diodes (LEDs) were evaluated and compared with the commonly used luring lamp (BLB). Under optimal light conditions, the red LED (625 ± 10 nm) exhibited the highest attraction rate (59.8 %), followed by the yellow LED (590 ± 5 nm, 52.3 %), the infrared LED (730 nm, 51.9 %), the green LED (520 ± 5 nm, 46.7 %), the blue LED (470 ± 10 nm, 45.3 %), the ultraviolet LED (365 nm, 32.7 %), and the BLB (27.3 %). Moreover, the red LED was approximately 2.19 times more attractive than that of the BLB. These results indicate that a red LED trap may be useful to control S. zeamais adults.
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