近年来,园林上介壳虫发生较为普遍,其中以白蜡介(又名日本龟蜡介)为害尤甚。一、寄主:白蜡介食性较杂,寄主主要有女贞、水腊、海桐、石榴、花桃、梅花、月季、桂花等。二、症状:该虫主要以若虫和雌成虫在枝梢上吸吮汁液为害,常致使寄主枝叶干枯。此外,白蜡介还可引致煤污病的发生,复合感染严重时,可导致寄主整株枯死。三、发生现律:该虫一年发生一代。以受精雌成虫在枝干上越冬。翌春3月底开始孕卵,5月大量产卵,6月上旬至7月中旬为孵化盛期。幼虫孵出后爬至叶上为害。8月,雄若虫在叶上化蛹、羽化,交尾后即死;雌若虫则由叶部转至枝干为害,直至越冬。近几年,在江淮地区、女贞行道树和水腊篱上白蜡介大量发生,以致一些城市的园林部门发出了“向介壳虫宣战”的口号。究其原因,这可能与近几年夏季持续高温干旱以 In recent years, the garden scale insects occurred more common, of which white wax mediated (also known as turtle wax mediated) particularly harmful. First, the host: white wax more complex diet, the main host privet, water wax, Pittosporum, pomegranate, Peach, plum, rose, osmanthus and so on. Second, the symptoms: The insects mainly to nymphs and female adults sucking on the shoot damage, often lead to the host branch leaves dry. In addition, ash can also lead to the occurrence of coal pollution, complex infection can lead to the death of the entire host dead. Third, the occurrence of the current law: the pest occurred a year. Fertilized female adults on the branches of the winter. The end of March next spring start pregnancy eggs, a large number of spawning in May, early June to mid July for the incubation period. After larvae hatch to leaf damage. In August, the male nymphs pupate on the leaves, eclosion, dead after mating; female nymphs from leaves to branch damage, until winter. In recent years, in the Jianghuai region, the tree wax on the virginity road and the white wax on the water fence have taken place so much that some of the city’s garden authorities have issued the slogan “Declaring war on scale insects”. The reason, which may be sustained with the recent high temperature and drought in summer