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桃树谢花后,果枝上接种不同数量的桃蚜[Myzuspersicae(Sulzer)],结果得出不同蚜虫数量均能引起桃树枝叶明显受害,并且随着虫量增加受害程度加重;每果枝蚜量达20～60头时,导致果品产量明显损失;各接虫量都未引起果品糖度显著差异。研究结果说明,桃树谢花后为桃蚜防治的关键时期,每果枝蚜量20头可以作为防治参考指标。
After peach tree Xiehua, fruit trees were inoculated with different numbers of Myzus persicae [Myzuspersicae (Sulzer)], the results showed that the number of different aphids can cause obvious damage to peach branches and leaves, and with the increase in the amount of pests increased victimization; Reaching 20 ~ 60 head, resulting in significant loss of fruit production; the amount of pick-up did not cause significant differences in fruit sugar content. The results show that Peach Xie flowers after the peach aphid control of the critical period, the amount of fruiting aphids per fruit 20 can be used as a reference marker for control.