Print version ISSN 0006-8705
COSTA, A. S. and FORSTER, R.. Identidade do virus de vira-cabeça e sua inclusão no grupo do virus do "spotted wilt". Bragantia [online]. 1941, vol.1, n.7, pp.491-516. ISSN 0006-8705. http://dx.doi.org/10.1590/S0006-87051941000700001.
The physical properties, vectors, differential hosts and host range of the "vira-cabeça" virus, were compared with those of the following viruses : spotted wilt virus, tomato tip-blight virus, kromneck virus, "corcova" virus and the virus described by Azevedo (3). As a result of this comparison it is pointed out that these viruses are alike or at least closely related to each other.