Abstract:
【Objective】
Cydia pomonella and
Grapholitha molesta are important fruit borers in fragrant pear orchard in Southern Xinjiang region, which have the latent threat to fragrant pear industry on account of some adaptable characteristics such as hidden habitat, boring damage, strong stress resistance to adversity and mixing co-occurrence on the same host plants. Chemical pesticides are used frequently, but their control effect is low, so it is particularly urgent and important to explore their new control approaches. 【Method】In this study, we compared the number of
C. pomonella and
G. molesta in different trap types, different traps color, different heights and azimuth, and different number of sex lures; and discussed occurrence dynamics and key technology of sex pheromone luring
C. pomonella and
G. molesta in Fragnant Pear Orchard. 【Result】The results showed that there were 4 generations in
C. pomonella and
G. molesta 5 generations a year in the orchard. Several traps had a certain effect on
C. pomonella and
G. molesta, in which the ship type plate adhesive trap had the best effect, the total amount of
G. molesta was 1,832, the total amount of
C. pomonella was 581, the second was the basin trap, but green and blue basin traps were not significant. When the trap was set at a height of 1.5 m, the trapping effect of
C. pomonella and
G. molesta was the best. However, the effect of setting up a height of 1.5 and 2.0 m for
C. pomonella and
G. molesta were not significant, but they were significantly better than the trap’s height of 1.0 m, and the effect of the western and northern bit set
C. pomonella and
G. molesta were significantly better than that in the east and the south, and the largest number of
G. molesta and
C. pomonella appeared in the northern and in the western azimuth respectively. The largest number of sex lure cores had the best effect on
C. pomonella and
G. molesta, but the lure cores between 1 and 2 were no significantly different. 【Conclusion】In fragrant pear orchard, two kinds of fruit borers can be effectively controlled by using sex trapping techniques of
C. pomonella and
G. molesta correctly and reasonably.