枣龟蜡蚧,俗名枣虱子,又名日本蜡蚧,在我国河北、河南、山东、山西、陕西等枣产区普遍发生。以成虫和若虫刺吸1～2年生枝条和叶片的汁液,使树势衰弱;另一方面,排泄物布满全树枝叶,雨季易引起大量霉污菌寄生,使枝叶表层、果实表面布满黑霉,影响光合作用和果实生长,造成早期落叶、幼果脱落,枣树减产,严重时可使枣树整枝或整株枯死。发生规律一年发生一代。受精雌成虫密集在一、二年生小枝上越冬,以当年生枣头最多。第二年4月底5月初枣树萌芽时,越冬雌成虫恢复吸食并开始发育,虫体增大;5月下旬或6月上旬 Jujube Wattle wax scale, common name jujube louse, also known as Japan wax scale, in our country Hebei, Henan, Shandong, Shanxi, Shaanxi and other jujube producing areas generally occur. In adults and nymphs sucking 1 to 2 years of branches and leaves of the juice, so that the weakness of the tree; the other hand, full of tree feces covered leaves, the rainy season can easily cause a large number of moldy parasites, so that branches and leaves the surface covered with fruit Black mold, affecting photosynthesis and fruit growth, resulting in early deciduous, young fruit off, cut jujube, jujube can cause serious pruning or whole plant dead. Occurrence occurs a generation a year. Fertilized female adults dense in one or two years on the branchlets overwinter, with the largest number of jujube head. The second year in early April at the beginning of May jujube sprout, overwintering female adults resume smoking and begin to develop, parasites increased; late May or early June