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Efficacy of biofungicides Supresivit and Polyversum against Phytophthora root pathogens on European chestnut (Castanea sativa Mill.)

Author

Listed:
  • G. Juhásová

    (Institute of Forest Ecology, Slovak Academy of Sciences Zvolen, Branch of Woody Plants Biology, Nitra, Slovak Republic)

  • S. Bernadovičová

    (Institute of Forest Ecology, Slovak Academy of Sciences Zvolen, Branch of Woody Plants Biology, Nitra, Slovak Republic)

Abstract

The effect of two commercially produced biopreparations on the originators of chestnut ink disease in Slovakia - soil fungi Phytophthora cambivora and Phytophthora cinnamomi was tested in laboratory conditions. Investigations of interrelations between Trichoderma harzianum (Pythium oligandrum) and isolates of Phytophthora sp. obtained from infected tissues of Castanea sativa Mill. proved more important inhibitive effects for Pythium oligandrum (biopreparation Polyversum) efficiency 25.3% (Ph. cambivora) and 26.2% (Ph. cinnamomi). Biopreparation Supresivit (Trichoderma harzianum) reached the efficiency 9.1% for Ph. cambivora isolates and 9.2% for Ph. cinnamomi isolates. Significant effect of the used bioformulas for inhibition of mycelial growth of both Phytophthora sp. and significant difference in the efficacy of two different bioformulas were confirmed statistically.

Suggested Citation

  • G. Juhásová & S. Bernadovičová, 2004. "Efficacy of biofungicides Supresivit and Polyversum against Phytophthora root pathogens on European chestnut (Castanea sativa Mill.)," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 31(3), pages 109-114.
    • Handle: RePEc:caa:jnlhor:v:31:y:2004:i:3:id:3802-hortsci
    DOI: 10.17221/3802-HORTSCI
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