梨圆蚧又称梨枝圆盾蚧，俗称红眼圈。近两年来，在山东省德州市的苹果、梨等果树上大发生。据调查，一般果园虫果率 30％～ 40％，重者可达 70％～ 80％，严重影响了果品的产量和质量。 　　梨圆蚧以雌成虫及若虫寄生于枝干、叶片及果实表面，吸取养分。苹果受害后，在果实表面 Pear scale also known as Pei branch round shield scale, commonly known as the red eye. In the past two years, apples, pears and other fruit trees have taken place in Dezhou, Shandong Province. According to the survey, fruit orchard fruit rate of 30% to 40% in general, up to 70% to 80%, seriously affecting the yield and quality of fruit. Pest on insects and nymphs pest insects on the branches, leaves and fruit surface, absorb nutrients. After the apple is harmed, the surface of the fruit