First report of Rhizoctonia solani AG 4 HG-II attacking castor bean plants (Ricinus communis) in Brazil and evaluation of two castor bean cultivars for resistance to damping-off

M. A. Basseto; H. A. Chagas; D. D. Rosa; M. D. Zanotto; E. L. Furtado

doi:10.1071/DN08048

RESEARCH ARTICLE

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First report of Rhizoctonia solani AG 4 HG-II attacking castor bean plants (Ricinus communis) in Brazil and evaluation of two castor bean cultivars for resistance to damping-off

M. A. Basseto ^A , H. A. Chagas ^A , D. D. Rosa ^A ^B ^C , M. D. Zanotto ^A and E. L. Furtado ^A ^B

+ Author Affiliations

- Author Affiliations

^A São Paulo State University, UNESP, College of Agronomic Science, FCA, Department of Plant Production, Plant Health Protection Sector, PO Box 237, Botucatu, SP 18610-307, Brazil.

^B Researchship of the National Counsel of Technological and Scientific Development.

^C Corresponding author. Email: ddrosa@fca.unesp.br

Australasian Plant Disease Notes 3(1) 121-123 https://doi.org/10.1071/DN08048
Submitted: 9 June 2008 Accepted: 3 September 2008 Published: 18 September 2008

Abstract

In 2006 stem rot, root rot and death of castor bean plants was widespread in parts of the São Paulo State, in Brazil. Rhizoctonia solani AG HG-II was identified as the causal agent. Two extensively grown cultivars (BRS Nordestina variety and Sara hybrid) were highly susceptible to this pathogen.

Acknowledgements

The authors wish to thank Dr J. B. Sinclair (University of Illinois, Urbana-Champaign, USA), Dr A. Ogoshi (Hokkaido University, Sapporo, Japan), Dr L. J. Herr (Ohio State University, Wooster, USA), Dr S. Naito (Tohoku National Agricultural Experiment Station, Morioka, Japan) and Dr M.A. Cubeta (Duke University, North Carolina, USA) for supplying the tester strains of R. solani.

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