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African black beetle (Heteronychus arator), is native to southern Africa. It has been present in Western Australia since the 1930s and occurs in the wetter coastal regions.
The olive lace bug, Froggattia olivinia, is native to eastern Australia. It has become established in the olive growing regions of Western Australia.
Black scale (Saissetia oleae) is a major pest of Australian olives, reducing tree vigour, yield and the quality of fruit and oil.