四川攀西地区榴绒蚧的发生与生物学特性研究  

Occurrence and Biological Characteristics of Eriococcus lagerostroemiae Kuwana in Panxi District

作　　者：马金华[1] 

机构地区：[1]西昌学院,西昌615013

出　　处：《中国南方果树》2011年第5期12-14,共3页South China Fruits

基　　金：四川省科技厅重点攻关项目(03NG020-007);凉山州科技局重点项目(2001-02)资助

摘　　要：榴绒蚧Eriococcus lagerstroemiae Kuwana在攀西地区1年发生3~4代,以4代为主,有明显的世代重叠。大多以末龄若虫越冬,少数以卵越冬。树龄8~12年的石榴树被害严重,多以若虫、雌成虫群集于树干、枝条、果柄等部位为害,一般不为害叶片和果实。该虫在攀西地区的主要捕食性天敌是红点唇瓢虫Chilocorus kuwanae Silvestri,红点唇瓢虫对榴绒蚧种群数量的增加具有十分显著的抑制作用。Eriococcus lagerostroemiae Kuwana occurs 3~4 generations a year,with over-lapping generations,in the Panzhihua-Xichang area.Most of them overwinter as full-grown nymphae and a few as eggs.8~12 years old pomegranate trees are damaged seriously as their stems,branches and peduncles are usually flocked with the nymphae and adult females of the scale.Leaves and fruit are not damaged.The scale＇s main predator in the Panzhihua-Xichang area is Chilocorus kuwanae Silvestri,which has a significant inhibitory effect on the population growth of Eriococcus lagerostroemiae Kuwana.

关 键 词：榴绒蚧 形态特征 年生活史 为害特点 攀西地区 

分 类 号：S436.65[农业科学—农业昆虫与害虫防治]