Vol. 54 No. 2 (2015): 9th IWGTD - Special issue on Grapevine Trunk Diseases
Research Papers

Effectiveness of composts and Trichoderma strains for control of Fusarium wilt of tomato

Yousra TAGHDI
University Abdelmalek Essaadi, Tangier
Rosa HERMOSA
University of Salamanca
Sara DOMÍNGUEZ
University of Salamanca
María Belén RUBIO
University of Salamanca
Haiat ESSALMANI
University Abdelmalek Essaadi, Tangier
Carlos NICOLÁS
University of Salamanca
Enrique MONTE
University of Salamanca

Published 2015-09-15

Keywords

  • biological control,
  • Solanum lycopersicum,
  • antagonism

How to Cite

[1]
Y. TAGHDI, “Effectiveness of composts and Trichoderma strains for control of Fusarium wilt of tomato”, Phytopathol. Mediterr., vol. 54, no. 2, pp. 232–240, Sep. 2015.

Abstract

Fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici (FOL) is a major limiting disease in tomato production in Morocco. Commercial and locally produced Moroccan composts and peat were found to reduce Fusarium wilt in tomato plants. We explored the presence of Trichoderma strains in these materials, and in six soils sampled in the North West of Morocco, where a low incidence of Fusarium wilt had been previously observed. The most abundant Trichoderma-like fungus was selected from each soil, compost or peat sample. Twelve Trichoderma strains were isolated and identified molecularly. Trichoderma asperellum CT9 and Trichoderma virens ST11 showed the greatest overall antagonistic activity against FOL, Rhizoctonia solani, Botrytis cinerea and Pythium ultimum. The three strains evaluated in in planta tests, CT9, ST11 and T. virens ST10, reduced tomato Fusarium wilt, and strain ST11  also promoted growth of tomato plants.

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