First report of Soybean dwarf virus on soybean in Wisconsin

Soybean dwarf virus (SbDV) causes widespread economic losses on soybeans (Glycine max (L.) Merr.) in Japan and has been reported on soybeans in Virginia. In 2003, 286 soybean fields in the R2-R4 growth stage were surveyed for SbDV in Wisconsin. Plants from five fields in four Wisconsin counties (Col...

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Bibliographic Details
Published inPhytopathology Vol. 94; no. 6
Main Authors Phibbs, A, Barta, A, Domier, L L
Format Journal Article
LanguageEnglish
Published 01.06.2004
Subjects
Aphis glycines
Glycine max
Soybean dwarf virus
USA, Wisconsin
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Summary:Soybean dwarf virus (SbDV) causes widespread economic losses on soybeans (Glycine max (L.) Merr.) in Japan and has been reported on soybeans in Virginia. In 2003, 286 soybean fields in the R2-R4 growth stage were surveyed for SbDV in Wisconsin. Plants from five fields in four Wisconsin counties (Columbia, Lafayette, Sauk and Waushara) tested positive for SbDV by double antibody sandwich enzyme-linked immunosorbent assay (DAS ELISA). The presence of SbDV was confirmed and strain identity was inferred by reverse transcriptase polymerase chain reaction (RT PCR). The size of the RT-PCR products (110 bp) was consistent with the dwarfing strain of SbDV. All locations that tested positive for SbDV had soybean aphids (Aphis glycines Matsumura) on 100% of soybean plants. Although aphids were present, vector relations in the Wisconsin infections are unclear at this time. This is the first report of SbDV infecting soybean in Wisconsin.
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ISSN:0031-949X