oa Journal of the Entomological Society of Southern Africa - Notes on the population dynamics of aphids on potatoes and the spread of the leaf roll virus in South Africa



One of the most important diseases found in South African potatoes is the leaf roll disease, caused by the leaf roll virus, Solanum virus 14, Smith. For a profitable return in the main table potato growing areas of the country new stock must constantly be introduced. The leaf roll virus is transmitted by certain aphid species, mainly Myzus persicae (Sulz.) (Smith and Brierley, 1956). A better understanding of the epidemiology of the disease in a certain area can be obtained when the population dynamics of the potato aphids are carefully investigated.


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