6 
C. F. H. Jenkins. 
Newman, L. J. 1934, Ibid. 2nd ser. Vol. XI., p. 203. 
Robinson, J. 1909, Journ. Dept. Agric. O'. Aiist. Vol. XVII., p. 683. 
Smith, J. H. 1945, Journ. Queensland Dept. Agric. Vol. 62, p. 341. 
Eriosoma lanigera. Hausm. (\^ ooliy Aphis). 
When this apliis reached Western Australia is not definitely known, but 
as early as 1895 (Lea 1895) it was recorded as “ widely distributed through- 
out Western Australia and one of the most serious pests which tlie apple grower 
has to contend with.” The suppression of the aphis by the wasp Aphelimis 
mali Hans, is one (^f the most outstanding local achievments in biological con- 
trol. The parasite was introduced into the state in 1923 from New Zealand 
with tlio co-operation of Dr. TiH_yanl of the Cawthron Institute. The first 
experiments were carried out in an orchard at Guildford and subsequently the 
insect was disti’ibutoil to orchardists throughout the South West. Before 
the introduction of Ajdadinus several routine spn'uy treatments failed to control 
the Woolly Aphis in the principal apple growing districts whereas now, arti- 
ficial treatments for the pest are soldotn necessary. 
Lady-birdvS (Lcis conjormis) also ]ila.ys a part in the control of this pest 
and the first colony ^yas introduced into the State from Tasmania as early as. 
1896 by Claude Fuller (Breen 1906 an<l Despeissis 1901). Further introduc- 
tions were made by Lea in 1901 (.Vnon 1901A) and Hooper in 1902. 
UTEHATl-RK. 
Anon, 1901, “ Scale Eating Lady-birds.” Journ. Dept. Agric. 11'. Ausi. Vol. IIL, p. 143. 
Anon, I901A, “ Introduction of Lady-birds," Ibid. \'ol. IV., p. 15. 
Rreen, 1). 1906, “ Lady-birds and Woolly Aphis,” Ibid. Vol. XIII., p. 447. 
Despeissis, A. 1906, ” Acting Directors Report, Vol. VI., p. 327. 
Lea, A. M. 1895, Journ. Bur. Agric. If. Vol. 2, p. 515. 
Newman, L. J. 1924, Journ. Dept. Agric. W. A ust. Ser. 2., Vol. 1, pp. 41 et 481. 
Newman, L. J. 1924, Ann. Ilept. Dept. Agric. If. dwsfi p. 21. 
Newman, L. J. 1926, Journ, Deq^t. Agric. IP. Awsfi Ser. 2, Vol. HI., p. 486. 
Toxoptera aurantii. Tons. (Black Orange Aphis). 
Althougli no economic control has been obtained, the Woolly Aphis para- 
site {Apheliuus mali Hans.) has been reared from T. aurantii. 
Unspecified species of hymenoptera were introduced by Compere from 
Algeria in 190() and from Ceylon in 1907 and 1909 against “ Black aphis ” pre- 
sumably T. aurantii. The parasites failed to become established. 
Macrosiphum rosae Reaum 
(Rose aphis.) 
Compere forwarded some unspecified species of svrphids from the Philippine 
Islands in 1907 to combat this aphis, but the predators failed to establish. 
Aphididae (unspecifi d.) 
Compere, Lea, and Fuller introduced a number of aphis parasites and 
predators concerning which little accurate detail is available. 
