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Em setembro de 2003, em Manaus, Amazonas, foram observadas manchas foliares, muito semelhantes àquelas de sigatoka-negra causada por Mycosphaerella fijiensis em folhas de Heliconia psittacorum. Efetuou-se o isolamento do patógeno e, para o teste de patogenicidade, foi utilizada a técnica de inoculação cruzada com os isolados de H. psittacorum e de bananeira (Musa spp.) da cv. Prata Anã. Em ambas as espécies o teste foi positivo. Com o auxílio do microscópio óptico, da literatura disponível e dos testes de patogenicidade, confirmou-se que H. psittacorum é hospedeira de M. fijiensis, sendo este o primeiro relato da ocorrência de M. fijiensis em helicônias. In Manaus Amazon, Brazil, in September 2003, spots on leaves of Heliconia psittacorum were observed that were very similar to those of black sigatoka caused by Mycosphaerella fijiensis on Musa spp. The pathogen was isolated and a pathogenicity test was done. An isolate from H. psittacorum and other from banana (Musa spp.) cv. Prata Anã were inoculated on H. psittacorum as well as on banana cv. Prata Anã. In both species the tests were positive. Microscopic observations and the results of pathogenicity tests showed that H. psittacorum is another host of M. fijiensis. This is the first report of M. fijiensis on H. psittacorum

Heliconia psittacorum: hospedeira de Mycosphaerella fijiensis, agente causal da sigatoka-negra da bananeira