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为了解梨小食心虫在转移寄主过程中选择性及转移性的特点,选择梨小食心虫主要被害寄主——桃树、梨树,分析梨小食心虫的危害习性。结果表明:梨小食心虫在桃园、梨园诱蛾峰数、诱蛾量均有差异,在果树生长前期(7月1日以前),桃园诱蛾量明显高于梨园,7月1日以后梨园诱蛾量明显高于桃园;果实膨大期和成熟期,梨园梨小食心虫数量显著高于桃园。不同管理模式下,8月不套袋梨园日平均诱蛾量显著多于套袋梨园,分别为131.25、70.75头。在新梢期,桃树蛀梢率显著高于梨树,达11.13%;果实成熟期,桃蛀果率显著低于梨。
In order to understand the characteristics of selective and metastatic Pear Mungbean in the process of host transfer, we selected pests and pears as the main victims of Pest, and analyzed the harmful habits of Pest. The results showed that there were significant differences in the number of moths and the number of moths in Pear Orchard, and the amount of moths in peach garden was significantly higher than that in pear orchards at the early stage of fruit tree growth (before July 1) The amount of moths was significantly higher than that of Taoyuan. The number of borer moths in pear orchard was significantly higher than that in Taoyuan during the period of fruit enlargement and maturity. Under different management modes, the daily average number of moths in bagging without pearls in August was significantly more than that of bagged pear orchards, 131.25 and 70.75 respectively. In shoot stage, peach shoot rate was significantly higher than pear tree, up to 11.13%; fruit maturity, peach fruit rate was significantly lower than pear.