摘  要  【目的】 筛选出诱捕番茄潜叶蛾Tuta absoluta 的高效光谱，研发番茄潜叶蛾灯光诱控技术。【方法】 利用昆虫趋光行为测定装置筛选出番茄潜叶蛾趋性高的光谱，并利用研制的LED灯光诱捕器比较不同光谱和光强组合对番茄潜叶蛾的田间诱捕效果。【结果】 番茄潜叶蛾对光谱趋光反应率较高的波段依次为：380-385 nm > 410-420 nm > 390-395 nm > 430-435 nm > 420-425 nm > 365-370 nm。雌蛾对410-420 nm的趋光率最高，其次为380-385 nm，雄蛾对380-385 nm趋光率最高，其次为420-425 nm。在相同波段下，雌蛾的趋光率普遍高于雄蛾。室内行为试验显示，番茄潜叶蛾的趋光性随光照强度的增加先增大后降低。在番茄日光温室中，不同功率（12、16和20 W）的LED灯光诱捕器在385 nm对番茄潜叶蛾均有优异的诱捕效果。【结论】 番茄潜叶蛾成虫对380-385 nm紫光趋性最高，雌虫的趋光性高于雄虫，并随着光照强度增强先增大后降低。研制的紫光LED灯诱捕器能够有效减少日光温室内番茄潜叶蛾的种群数量。

Abstract  [Aim]  To identify the best light wave-lengths for trapping the tomato leaf miner Tuta absoluta. [Methods]   Wave-lengths that attracted the tomato leaf miner were identified using an insect phototaxis measurement device. The effectiveness of different wave-length and light intensity combinations were then compared using a specially developed LED light trap. [Results]  The light wave-lengths tested could be ranked in order of attractiveness as follows: 380-385 nm > 410-420 nm > 390-395 nm > 430-435 nm > 420-425 nm > 365-370 nm. The more attractive wave-lengths were concentrated in the purple region of the spectrum. The most attractive wave-length to female moths was by 410-420 nm, followed by 380-385 nm. Male moths were most attracted by 380-385 nm, followed by 420-425 nm. Female moths had a stronger phototactic response than male moths to the same light wave-length. After external light interference was excluded, phototaxis first increased, then decreased, with increasing light intensity. Different intensities (12, 16, and 20 W) of 385 nm LED light traps were found to be the best for trapping tomato leaf miner moths in a greenhouse. [Conclusion]  Adult tomato leaf miner moths, and especially adult females, are strongly attracted to 380-385 nm purple light. Phototaxis of the tomato leaf miner first increases, then decreases, with increasing light intensity. The use of purple LED light traps can effectively reduce the population of tomato leaf miner moths in greenhouses.