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Biological Control
Vol. 72, 20
14; Page: 71 - 75

Spectrum of biocontrol bacteria to control leaf, root and vascular diseases of dry bean

Bianca Obes Corrêa, Jaqueline Tavares Schafer, Andrea Bittencourt Moura

Universidade Federal de Pelotas, Departamento de Fitossanidade, Campus Universitário, Capão do Leão s/n, CP: 354, CEP 96900-010 Pelotas, RS, Brazil.


Bacterial biocontrol agents, previously selected to control bacterial blight and anthracnose, were evaluated for the control of bacterial wilt, fusarium wilt, charcoal rot and angular leaf spot of dry beans. The seeds were microbiolized with these bacteria singly or in combinations. The microbiolization resulted in reduction of severity of all four diseases, showing wide spectrum of diseases control by these bacteria. However, the severity reduction of all four diseases by combination C01 composed of isolates DFs093 and DFs769 of Bacillus cereus and DFs831 of Pseudomonas fluorescens was significantly higher than if the seeds were microbiolized by a single isolate of a biocontrol agent.

Keywords: Seed microbiolization; Curtobacterium flaccumfaciens pv. flaccumfaciensPseudocercospora griseolaMacrophomina phaseolicolaFusarium oxysporum f. sp. phaseoliPhaseolus vulgaris

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