日本龟蜡蚧是枣树的重要害虫,除刺吸果树汁液外,其排泄物并发黑煤病,导致叶片早落,枝条发育不良,影响枣树开花结果、日本龟蜡蚧一年一代,以受精雌虫在枣树1—2年生枝上越冬。每只越冬雌虫翌年可产卵2000—3000粒,卵的孵化率为80％,近年因该虫危害大枣减产60—90％。 Japan turtle scale insects jujube is an important pest, in addition to sucking fruit tree juice, the excrement and black coal disease, leading to leaf fall, branches dysplasia, jujube flowering, juvenile Japanese turtle scale generation, Female fertilizers in the jujube 1 - 2 years old branches wintering. Each wintering females can spawn 2000-3000 eggs the following year, the hatching rate of eggs is 80%, in recent years due to the pest harm jujube cut 60-90%.