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By K. Harris

ISBN-10: 0123275504

ISBN-13: 9780123275509

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Path. 23: 165-166. Blackman, R. L. (1976). Biological approaches to the control of aphids. Phil Trans. R. Soc. Lond. B. 274: 473488. Borner, C. (1952). Europae centralis Aphides. Mitt, thuring. bot. Ges. 4 (3) 2: 260-484. Ch. 1 IMPORTANCE OF APHIDS AS VIRUS VECTORS 45 Broadbent, L. (1965). The importance of alate aphids in virus spread within crops. Proc. int. congr. Ent. 12: 523-524. Callahan, P. S. (1975). Insect antennae with special reference to the mechanism of scent detection and evolution of the sensilla.

There is an old aphid fauna on Podocarpus on the mountains of Asia, Africa, Australasia and South America, and on Nothofagus in the Andes, Tasmania and New Zealand. 5 Political and Economic Boundaries Political boundaries and economic ties affect the movement of agricul­ tural produce, including planting material, quarantine legislation, and perhaps more importantly the application of the legislation. Political boundaries affect the method of production of virus free stock. For instance, England obtains most of its seed potatoes from wet and windy Scotland, Wales, and Ireland.

Aphiden an Moosen. Ent. Abhandl. 39: 205-242. Orlob, G. B. (1966). The role of subterranean aphids in the epidemiology of barley yellow dwarf virus. Entom. exp. appi 9: 85-94. Paik, W. H. (1972). Aphidoidea. Illustrated Encyclopaedia of Fauna and Flora of Korea, vol. 13, Insecta: 5, 751 pp. [ in Korea]. Patch, E. M. (1938). Food-plant Catalogue of the Aphids of the World. Bull. Me agric. Exp. Stn. 4 3 5 : 4 3 1 p p . Pintera, A. (1960). Attempts to transmit spruce virosis through aphids (Aphidoidea).

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Aphids As Virus Vectors by K. Harris

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