Along with the rapid increase of motor vehicles, bicycle is used decreasingly when people go out, however it is an important ...

Any of various homopterous insects, especially of the family Pseudococcidae, some of which are destructive to citrus trees and other plants., 粉蚧， 水腊虫粉蚧科同翅类昆虫中的一种，其中有些对柑橘属果树和其他植物有毁灭性危害。