Properties of a Tombusvirus that infects cocona (Solanum sessiliflorum) in the Peruvian jungle von Melgarejo, T.A, Fribourg, C.E. (Universidad Agraria La Molina, Lima (Peru). Dept. of Entomology and Phytopathology), Russo, M. (Bari Univ. (Italy). Dipartimento di Protezione delle Piante e Microbiologia Applicata)

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Evaluation of various species demarcation criteria in attempts to classify ten new tombusvirus isolates von Koenig, R, Verhoeven, J.T. J, Fribourg, C.E, Pfeilstetter, E, Lesemann, D.E

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Characterization of a new potyvirus from potato [Peru] von FRIBOURG, C. E, NAKASHIMA, J

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Andean potato calico strain of tobacco ringspot virus [Peru] von Fribourg, C.E

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A new tobamovirus from Passiflora edulis in Peru von Fribourg, C.E, Koenig, R, Lesemann, D.E

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Host plant reactions, some properties, and serology of Peru tomato virus von Fribourg, C. E.

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improved latex agglutination test for routine detection of potato viruses [Andean potato latent, Andean potato mottle] von Fribourg, C.E, Nakashima, J

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Symptomatological, serological, and electrophoretic diversity of isolates of Andean potato latent virus from different regions of the Andes [Colombia, Ecuador, Peru, Bolivia] von Koenig, R, Fribourg, C.E, Jones, R.A.C

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A previously undescribed nepovirus isolated from potato in Peru [Solanum spp., virus cultured in Nicotiana spp.] von Jones R.A.C, Fribourg C.E, Koenig R

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Andean potato mottle, a new member of the cowpea mosaic virus group von Fribourg C.E, Jones R.A. C, Koenig R

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Host plant reactions some properties, and serology of wild potato mosaic virus [isolated from Solanum chancayense growing in the Peruvian coastal desert] von Jones, R.A.C, Fribourg, C.E

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