Ocorrência de viroses no feijão-caupi (Vigna unguiculata (L). Walp.) em municípios produtores do sertão paraibano.

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.