n.small east Asian insect naturalized in the United States that damages fruit trees
同义词：Aspidiotus perniciosus
英汉双解大词典
San Jose scale
1.
N（名词）
a small E Asian homopterous insect, Quadraspidiotus perniciosus, introduced into the US and other countries, where it has become a serious pest of fruit trees: family Diaspididae 梨圆蚧