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Alternative Hosts for Fusarium spp. Causing Crown and Root Rot of Asparagus in Spain

Authors

  • Leire Molinero-Ruiz,

    1. Authors’ addresses: Crop Protection, IFAPA Las Torres-Tomejil, CAP (Junta de Andalucía), Apdo. oficial, 41200 Alcalá del Río (Sevilla), Spain
    2. Present address: Institute for Sustainable Agriculture, CSIC, Apdo. 4084, 14080 Córdoba, Spain (correspondence to M. L. Molinero-Ruiz. E-mail: lmolinero@ias.csic.es)
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  • Encarnación Rubio-Pérez,

    1. Authors’ addresses: Crop Protection, IFAPA Las Torres-Tomejil, CAP (Junta de Andalucía), Apdo. oficial, 41200 Alcalá del Río (Sevilla), Spain
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  • Elisa González-Domínguez,

    1. Authors’ addresses: Crop Protection, IFAPA Las Torres-Tomejil, CAP (Junta de Andalucía), Apdo. oficial, 41200 Alcalá del Río (Sevilla), Spain
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  • María José Basallote-Ureba

    1. Authors’ addresses: Crop Protection, IFAPA Las Torres-Tomejil, CAP (Junta de Andalucía), Apdo. oficial, 41200 Alcalá del Río (Sevilla), Spain
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IFAPA Las Torres-Tomejil, CAP (Junta de Andalucía), Alcalá del Río (Sevilla), Spain

Abstract

Asparagus crown and root rot caused by Fusarium oxysporum f.sp. asparagi (Foa), F. proliferatum (Fp) and F. solani (Fs) result in early decline and loss of crop production. The role of several crop species on the survival of the Fusarium spp. was investigated. The root symptoms and plant weight of seven crop species were evaluated after inoculation with each of the three Fusarium spp. The number of colony-forming units of the Fusarium spp. from root tissues was also determined. Garlic was shown to be a symptomatic host for Foa, Fp and Fs; Fs was also pathogenic to onion. Root colonization of garlic, onion, maize, wheat, potato and sunflower suggested that they are reservoirs of Foa, Fp and Fs from asparagus and demonstrated the importance of crop rotation on the development of this asparagus disease.

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