大球蚧(Eulecanium Sp.)系同翅目介壳虫总科蜡蚧科(Coccidae)的昆虫。为我市行道树上的一种重要害虫。它的寄主范围广,为害重。据调查:本市的城关、七里河、西固和安宁近郊四区均有分布,为害杨、柳、榆、槐、槭等十五个树种。西固区庄浪路中国槐行道树虫株率达90.7％,刺槐的虫株率高达92.6％,有的造成枝枯,受害严重的中国槐植株,其枯梢率达33.6％,提早落叶,影响树木的茁壮成长,有碍市容的观瞻。 Eulecanium Sp. Is a Homoptera insects belonging to the family Coccidae. An important pest on the tree in our city. Its host a wide range of damage. According to the survey, the city’s Chengguan, Qilihe, Xigu and suburb of the four suburbs are distributed, damage Yang, Liu, Yu, Huai, maple and other fifteen species. In Zhuanglang Road, Xigu District, China, the rate of tree pest was 90.7% and that of black locust was as high as 92.6%. Some of the locust plants that caused branch blight and severe damage had a rate of blight of 33.6% Trees thrive, hinder the appearance of the cityscape.