|
Disease Note Tomato Spotted Wilt Virus in Stephanotis in an Oregon Greenhouse. J. L. Green, Department of Horticulture, Oregon State University, Corvallis 97331. T. C. Allen, and S. Fischer. Department of Botany and Plant Pathology, Oregon State University, Corvallis 97331. Plant Dis. 72:912. Accepted for publication 4 August 1988. Copyright 1988 The American Phytopathological Society. DOI: 10.1094/PD-72-0912E.
Plants of Stephanotis floribunda Brongn. in a commercial
greenhouse planting established 20 yr ago in Oregon began showing
disease symptoms in 1987, i.e., wilting and dieback of terminal growth,
leaf spots, leaf mottling and chlorosis, and necrotic lesions on flowers.
Fungal and bacterial pathogens were not detected. However, bioassay
on Chenopodium quinoa Willd., Gomphrena globosa L., cucumber,
and tomato; electron microscopy of extracts and sections; and doubleantibody
sandwich enzyme-linked immunosorbent assay (antiserum
provided by D. Gonsalves, New York State Agricultural Experiment
Station, Geneva) confirmed the presence of tomato spotted wilt virus
(TSWV) in all symptomatic S. floribunda samples. TSWVappears to
be spreading rapidly in greenhouse ornamentals (1,2) but has not
previously been noted on S.floribunda, a woody perennial shrub of the
Asclepiadaceae family. |