VIEW ARTICLE

Etiology

Pathogenicity of Epiphytic Fusarium moniliforme var. subglutinans to Pineapple. J. C. Dianese, Associate professor, Departamento de Biologia Vegetal, Universidade de Brasília, Brasília, DF, Brasil 70.910; H. A. Bolkan(2), C. B. da Silva(3), and F. A. A. Couto(4). (2)(3)Associate professor, and research assistant, Departamento de Biologia Vegetal, Universidade de Brasília, Brasília, DF, Brasil 70.910; (3)Agronomist, EPAMIG, Uberlandia, Minas Gerais, Brazil. Phytopathology 71:1145-1149. Accepted for publication 29 January 1981. Copyright 1981 The American Phytopathological Society. DOI: 10.1094/Phyto-71-1145.

Two hundred fifteen isolates of Fusarium spp. were obtained from washings of 0.9² of symptomless leaf surface of pineapple cultivar Smooth Cayenne. Twenty-one (9.7%) of the isolates were F. moniliforme var. subglutinans. Nineteen of these isolates induced symptoms with variable degrees of disease severity on leaves, inflorescences, and/or lateral sprouts of susceptible pineapple cultivars. An epiphytic isolate of F. oxysporum and another of F. solani were both nonpathogenic. Fusarium spp. found in similar leaf washings from cultivar Perola included 26.9% of F. moniliforme var. subglutinans.