Abstract: The American white moth is an alien invasive species originating from North America. It has three characteristics of“phototaxis”,“taste”and“appetite”. It is sensitive to odors,especially to fishy, fragrant, and stinky odors. Generally,the trees around the toilets,livestock houses and stinky water pits with poor sanitary conditions are prone to epidemic. This paper analyzes the synergistic effects of different plant volatiles on the sex pheromone of the American white moth,the trapping effect of LED lights at different wavelengths on the American white moth and the diurnal activity characteristics of the American white moth. The results show that：(1) The mixture of 6-methyl-5-hepten-2-one and β-ocimene at a ratio of 7:3 can significantly increase the trapping effect of the sex pheromone of the American white moth, with a relative trapping rate of 28.33%;(2) The relative trapping rate of LED lamp in 355-360 nm band is 60.33%,which is the best among all experimental bands;(3) The American white moth is nocturnal from 02:00 to 04:00, and the relative trapping rate is 28.02%.

Key words: American white moth, sex pheromone, trapping