prickly pear

The most famous successful example was the introduction of the gray moth, Cactoblastis cactorum, into Australia to control the prickly pear, Opuntia inermis, which was overrunning vast tracts of land.

这其中最例子就是把一种灰色子-仙人掌螟Cactoblastiscactorum引入澳大利制那里曾经泛滥一时一种仙人掌Opuntiainermis。