Australian bug, noun phrase

The cottony cushion-scale Icerya purchasi of the Coccoideae, which attacks plants, especially citrus trees.
Note:
This pest was introduced from Australia in the late nineteenth century.
1877 Alice Times 11 MayThe Australian Bug is not likely to have in the Colony either a long life or a merry one. Its new-found enemy the ‘Lady Bird’ is multiplying exceedingly, it is said.
1887 E.A. Ormerod (title)Notes on the Australian Bug.
1889 E.A. Ormerod Notes & Descr. of Injurious Farm & Fruit Insects 70The soft, cushiony, white-ribbed Scale insects, commonly known as the Australian Bug (the Cottony Cushion Scale of North America), ranks amongst the most destructive of the insect pests hurtful to trees and shrubs in S. Africa, although little more than fifteen years have elapsed since this pest was first observed in the Colony.
1892 W.L. Distant Naturalist in Tvl 88High veld..arboriculture is in danger by the arrival of the Coccid, or so-called ‘Australian Bug’ (Icerya purchasi), which has ruined many trees and shrubs.
1918 S.H. Skaife Animal Life in S. Afr. 154The Australian bug was a very serious pest here at one time, and threatened the whole of the citrus-growing industry.
1937 Handbk for Farmers (Dept of Agric. & Forestry) 992Australian Bug,..Icerya purchasi, Mask. Mature females pouch-like, stationary, about ¼ inch long.
1967 E. Rosenthal Encycl. of Sn Afr. 156Dorthesia, Insect pest, also known as Australian Bug, introduced into Cape Colony in 1873, where it did immense damage to trees.
1973 B. Smit in Std Encycl. of Sn Afr. IX. 505The Australian bug spread to all countries where citrus was being grown, but everywhere it was brought under control by the ladybird beetle.
1990 Weekend Post 23 June (Leisure) 7Many of the suckling insects like Australian bug, scale and mealy bug seem to zero in on plants which are under stress due to having dust-clogged pores.
The cottony cushion-scale Icerya purchasi of the Coccoideae, which attacks plants, especially citrus trees.
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