Produção de mudas de eucalipto sob dois sistemas de irrigação e a ocorrência da bacteriose foliar (Xanthomonas axonopodis Vauterin)

Abstract

In Brazil, bacterial spot and defoliation caused by Xanthomonas axonopodis Vauterin is one of the most important disease of eucalyptus during the seedlings production. The infectious process depends essentially on the presence of free water on the leaf surface. Therefore, this study aimed to evaluate the effectiveness of disease control through an alternative technology of irrigation, with elimination of the presence of free water on the leaves. The results showed that the use of sub-irrigation reduced the intensity of the disease, increased development and use of seedlings compared to sprinkler irrigation system. The use of sub-irrigation technology is another alternative to integrated management of disease in eucalyptus nurseries.