On-line version ISSN 1678-4677
ALMEIDA, Fernandes A. et al. Diagnostic and quantification of barbados cherry diseases in the State of Paraíba, Brazil. Fitopatol. bras. [online]. 2003, vol.28, n.2, pp. 176-179. ISSN 1678-4677. http://dx.doi.org/10.1590/S0100-41582003000200010.
This work was aimed at diagnosing and quantificating barbados cherry (Malpighia emarginata) fungal diseases in different micro-regions of Paraíba. Black mould, anthracnose and alternaria leaf spot were observed in the plant material sampled caused, respectivelly, by Cercospora sp., Fusarium oxysporum, Capnodium sp., Colletotrichum gloeosporioides and Alternaria sp. The pathogenicity test performed showed the development of round lesions and the drying and falling of punctured leaves inoculated with a fungus of genus Pestalotiopsis isolated from material naturally infected. The greates and least number of diseases were observed in the micro-regions of Brejo and Curimatau, respectively. Cercospora leaf spot occurred in all localities. Anthracnose and black mould were observed in Brejo and Litoral micro-regions, and the fusarium wilt occurried in Sertão and Curimatau micro-regions. Alternaria occurred in the Sertão and pestalotia leaf spot occurred in Brejo. The higher values of incidence and severity for anthracnose, black mould and pestalotia leaf spot were associated with increased rainfall. For anthracnose, the presence of sucker insects was also higher.
Keywords : Malpighia emarginata; incidência e severidade de doenças.