【目的】 分析油松毛虫Dendrolimus tabulaeformis Tsai et Liu对不同波长LED灯的趋向性，评价其诱捕效果，为合理应用LED灯监测和防治油松毛虫提供科学依据。【方法】 通过野外诱捕和室内趋性试验分析不同波长LED灯（365、380、420、470 nm）对油松毛虫的诱集效果，分析油松毛虫上灯节律。比较野外灯诱组和室内对照组雌虫产卵量。【结果】 野外诱捕结果表明，紫外光区365 nm、380 nm LED灯的诱虫量显著高于蓝光区420 nm、470 nm的LED灯；雌、雄虫上灯高峰期为23:30—1:00。室内趋光性试验结果显示，油松毛虫对紫外光365 nm和380 nm LED灯有明显的趋向性。室内对照组的平均产卵量（550±89）粒/头与野外灯诱组的平均产卵量（263±88）粒/头差异极显著，前者约为后者的2倍，诱捕到的雌虫在林间仍有一半卵未被产出。【结论】 在夜间2:30之前利用紫外光波段的LED灯对油松毛虫有良好的诱捕效果；灯诱能减少油松毛虫雌虫在林间产卵，从而降低林间下一代虫口数量，可用于野外监测和防治。本研究为合理使用LED灯监测和防治油松毛虫提供参考。

[Objectives]  To evaluate the effectiveness of trapping Dendrolimus tabulaeformis with different wavelength LED lamps and thereby identify the best wavelength of LED lamp for monitoring and controlling this pest. [Methods]  The attractiveness of four different wavelengths of LED lamps (365, 380, 420, 470 nm) to D. tabulaeformis was measured by trapping in the field and conducting phototaxis selection experiments in a laboratory. The activity rhythm of D. tabulaeformis was analyzed and the fecundity of females light-trapped in the field was compared with that of an indoor control group. [Results]  Significantly different numbers of D. tabulaeformis were trapped using 365 nm and 380 nm lights in the UV region and 420 nm and 470 nm lamps in the blue region. Males and females were trapped mainly between 23:30 and 1:00. The average fecundity of females light-trapped in the field (550 ± 89) eggs/adult was significantly higher than that of an indoor control group (263 ± 88) eggs/adult. About half the eggs of light-trapped females had not been laid. [Conclusion]  UV light-traps caught most D. tabulaeformis before 2:30 at night. Light-trapping reduced the amount of eggs laid, thereby decreasing the abundance of the subsequent generation in the forest. These results provide a useful reference for using LED lights to monitor and control D. tabulaeformis.