柏大蚜Cinara tujafilina(Del Guercio)属同翅目,蚜虫科,主要为害侧柏,常群集于侧柏的嫩枝和幼干上,连年受害树的抽枝量明显减少,受害严重时枝梢枯萎;受害树皮表面留有一层黑色分泌物,严重影响侧柏生长,并降低其观赏价值。国内尚未见关于柏大蚜研究的报道,笔者于1984～1985年对该史进行了观察研究,现初报如下。 Cinara tujafilina (Del Guercio) is a Homoptera, aphididae, mainly harmful to oriental arborvitae, often clustered in the arborvitae shoots and young stems, successive years of victimization of the tree significantly reduced the number of shoots, severely damaged branches Withered; victim bark left a layer of black secretions on the surface, seriously affecting the growth of oriental arborvitae, and reduce its ornamental value. There have been no reports about the research on the great aphids in China. The author observed and studied the history from 1984 to 1985, and the initial report is as follows.