桃蚜是桃树早春发生的主要害虫.初春为害嫩叶和花,展叶后成蚜和若蚜在叶背刺吸汁液,受害的叶片卷缩变黄,果实萎蔫,最后均脱落.该害虫在我区桃园普遍发生猖獗,一年发生 Myzus persicae is the main pest in peach trees in early spring, which affects the young leaves and flowers in early spring, the aphids and the nymphs on the leaves of the leaves after the leaves are disassembled, the affected leaves are curled and yellowed, the fruit wilting and finally falling off. In my district Taoyuan rampant occurred a year