-51 - 
1940 
Anonymous (260) 
Some common insect pests of fruit trees and vines in South 
Australia. Part II. Sucking insects. So. Austral. Dept. 
Agr. Jour. 43(9): 633-646. 
Recommends that Aphelinus mali be introduced into woolly 
apple aphid infested orchards to control this pest on the parts 
of the trees above ground. 
_^____ (261) 
Review of the year 1939. Plant Protection. Palestine Monthly 
Agr. Bui., Jan. 1940: 64-65. 
Chemical measures were required to supplement the control 
of the woolly apple aphid by Aphelinus mali . 
Clausen, C. P. (262) 
Entomophagous insects. 688 pp., illus. McGraw-Hill, New York. 
Aphelinus mali , p. 157, 159, 166, and 168. 
Ehrenhardt, H. (263) 
Untersuchungen uber den Einfluss der Zehrwespe Aphelinus mali 
auf den Massenwechsel der Blutlaus unter Berucksichtigung 
der biologischen Bekampfung der Blutlaus. Arb. uber Physiol, 
u. Angew. Ent. 7: 1-41. (Abs. in Ztschr. f. Pflanzenkrank. 
52(11): 524-525.) 
Reports the introduction and spread of A. mali in orchards in 
the Lower Elbe. Discusses biological data and the probable 
means as to its rapid spread over great distances. 
Faes, H. (264) 
Station federale d'essais viticoles et arboricoles a Lausanne et 
Domaine de Pully. Rap. Ann., 1938. Landw. Jahrb. des 
Schweiz 54(1): 1-26. 
Eriosoma lanigerum on apple was eliminated in the autumn by 
Aphelinus mali in the Domaine de Pully. 
