一、前言 近几年来,在我区桂西南部咖啡植区调查,发现为害小粒种咖啡(Coffea arbica)的蚧虫种类很多。经初步鉴定有:绿蚧(Coccus viridis Green)、绿绵蚧(Pulvi-naria psidii Mask)、褐盔蚧(Saisstia nigra Nietn)、土字盔蚧(Saisstiu oleae Bern)、吹绵蚧(Icerya sp)、粉蚧(Pseudococcus sp.)、咖啡根粉蚧(planococcus lilacinus C.)等7种。它们主要寄生在咖啡的嫩梢、芽、叶背、果柄和根等部位。其中特别值得注意的是为害根部的根粉蚧,发生较普遍而严重,是一种带毁灭性的害虫。本文系作者1959—1960年对该虫调查和防治试 I. Preface In recent years, a large number of scale insects have been found in Coffea arbica in a coffee plantation survey in the southwestern part of Guangxi Province. The preliminary identification was made of Coccus viridis Green, Pulvi-naria psidii Mask, Saisstia nigra Nietn, Saisstiu oleae Bern, Icerya sp, , Pseudococcus sp., Planococcus lilacinus C. They are mainly parasitic in coffee tender shoots, buds, leaves back, stalks and roots and other parts. Of particular note is the damage to the root of the root mealybugs, the more common and serious, is a devastating pest. This article is the author of the 1959-1960 survey of the insects and prevention test