Transmission of Cassava Mosaic Virus by Bemisia tabaci. A. A. Seif, Research Plant Pathologist, Ministry of Agriculture, Coast Agricultural Research Station, Kikambala, Kenya. Plant Dis. 65:606-607. Copyright 1981 American Phytopathological Society. DOI: 10.1094/PD-65-606.

Four cassava cultivars from different sources were evaluated in the screenhouse for resistance to cassava mosaic virus. Test plants were exposed to 1–15 viruliferous whiteflies (Bemisia tabaci). The virus was transmitted by single whiteflies, but percent transmission increased with the number of insects per plant. The cultivars from South America were highly susceptible to the disease. A technique for quick screening of cassava for mosaic resistance is suggested.