-47- 
1938 
Ballard, E. (239) 
Report of the chief of plant protection officer for the year ended 
31st March 1938. Palestine and Forests Dept. Agr. Rpt., 
1937-38, 71-73. 
Aphelinus mali was introduced into Palestine from Egypt in 1937. 
de Nardo, A. (240) 
Annual report of the working of the department of agriculture 
(Malta) during 1936-37. 77 pp. 
Eriosoma lanigerum was well controlled in all apple orchards 
by Aphelinus mali . 
Dumbleton, L. J., and Jeffreys, F. J. (241) 
The control of the woolly aphis by Aphelinus mali. New Zeal. 
Jour. Sci. and Technol. 20(3): 183A-190A~ 
Discusses the percentages of parasitism in the field by A. 
mali , and gives biological notes on factors influencing control 
of woolly apple aphids. 
Evans, J. W. (242) 
Aphides and their control. Tasmanian Jour. Agr. 9(1): 20-23. 
Eriosoma lanigerum is now of little importance owing to the 
establishment of Aphelinus mali . 
Meier, N. F. (243) 
^The biological method of controlling injurious insects and the 
results of its application in the USSR. (With the addition of 
material on the races of Trichogramma.]j Zool. Zhur. 
17(5): 905-932. /Tn RussianJ 
Reports the results of work in the Russian Union since 1930, 
including the successful establishment of Aphelinus mali . 
Discusses the effect of temperatures on the activities of the 
parasite. 
Morris, H. M. (244) 
Annual report of the entomologist for 1937. Cyprus Dept. Agr. 
Rpt., 1937: 42-47. 
Aphelinus mali, introduced into Cyprus in 1936, was present 
in one apple orchard in 1937. 
