![san jose scale san jose scale](https://www.tekportal.net/wp-content/uploads/2018/11/san-jose-scale.jpg)
noun
- a scale insect, Aspidiotus perniciosus, that is highly destructive to fruit trees and shrubs throughout the U.S.
noun
- 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