槐花球蚧Eulecanium Kuwanai Kanda~(**)多年来在宁夏回族自治区的银川、中卫、灵武、青铜峡、盐池等市县,严重为害小叶杨、白榆、国槐、刺槐、旱柳、箭杆杨、复叶槭、苹果、桃、杏等林果树木。以若虫刺吸树叶和枝条的汁液,造成树木长势削弱,甚至死亡。 该虫在宁夏—年发生一代。以若虫固定在当年生枝条上群聚越冬。翌春继续为害。4月中旬老熟若虫开始雌雄分化。5月初雌雄成虫交配。6月初出现新若虫,并从树枝上转移到 For many years, Eulecanium Kuwanai Kanda ~ (**) has seriously damaged Populus simonii, Ulmus pumila, Sophora japonica, Robinia pseudoacacia, Robinia pseudoacacia, Arrow Yang, maple leaf, apple, peach, apricot and other fruit trees. Nymphs suck the leaves and branches of the juice, causing the growth of trees weakened, or even death. The insect in Ningxia - a generation occurs. Nymphs fixed in the current branches of the cluster of winter. Next spring continue to harm. Mid-April nymphs began to differentiate. Male and female adults mating in early May. New nymphs appear in early June and are transferred from the branches