FREITAS, A. S.; http://lattes.cnpq.br/9664774309831812; FREITAS, Aurivan Soares de.
Abstract:
The cowpea (Vígna ungt//cu/afa) is an important crop used by small farmers in
the Northeast of Brazil. During cultivation, the occurrence of diseases caused by
viruses is one factor limiting the cowpea production. It stands out among the
diseases caused by viruses, severe mosaic, caused by Cowpea severo mofa/c
v/rus (CPSMV), Cowpea aph/d-come mosaic vírus (CABMV) and Cucumber
mofa/c v/rus (CMV). A survey of viruses in production fields of cowpea in Bom
Sucesso. Paulista and Pombal, in Paraíba State, was conducted during the
mouths august to december of 2009 and february to may of 2010. The
nces of CPSMV and CABMV were observed in three cities studied at
different times in single and mixed infections. Samples of leaves with golden
mosaic symptoms negative serologic test were tested by PCR and the presence
of Begomovfrt/s was confirmed. CMV was not detected in any of the regions
studied.
