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Disease Note. Cucumber Vein Yellowing Virus in Cucurbitaceae in Turkey. M. A. Yilmaz, Department of Plant Protection, Agricultural Faculty, Qukurova University, Adana, Turkey. M. Ozaslan, and D. Ozaslan. Department of Plant Protection, Agricultural Faculty, Qukurova University, Adana, Turkey. Plant Dis. 73:610. Accepted for publication 21 November 1988. Copyright 1989 The American Phytopathological Society. DOI: 10.1094/PD-73-0610A. Symptoms of vein yellowing, veinclearing, stunting, and yield
red uction were observed on Cucumis sativus L. 'Cool Green' and
C. melo L. 'Hasanbey.' The causal agent was rarely transmitted to
plants by mechanical inoculation but was easily transmitted in a
semi persistent manner by Bemisia tabaci Genn. to C. sativus, C. melo,
Cucurbita pepo L. 'Sakiz Kabagi,' and Citrullus lanatus L.
'Washington.' Chenopodium quinoa Willd., Datura stramonium L.,
Gomphrena globosa L., and Turkish tobacco (Nicotiana sp.) did not
show any symptoms, and the virus was not recovered from experimentally
inoculated plants. Rod-shaped viral particles (76(}--810 X
15-20 nm) were observed in the leaftissue of Cucumis plants by electron
microscopy (2). By means of membrane feeding (1), the virus was
transmitted by B. tabaci to Cucumis, melon, squash, and watermelon
plants. This is the first report of cucumber vein yellowing virus in
Turkey. |