Vol. 60 No. 2 (2023): including 12th Special issue on Grapevine Trunk Diseases
Research papers - 12th Special Issue on Grapevine Trunk Diseases

Phenolic compounds inhibit viability and infectivity of the grapevine pathogens Diplodia seriata, Eutypa lata, Fomitiporia mediterranea, and Neofusicoccum parvum

1Mendeleum – Institute of Genetics, Mendel University in Brno, Valtická 334, 691 44, Lednice, Czech Republic
Unité Résistance Induite et Bioprotection des Plantes USC INRAE 1488, Université de Reims Champagne–Ardenne, Moulin de la Housse, Bâtiment 18, Reims, France
Mendeleum – Institute of Genetics, Mendel University in Brno, Valtická 334, 691 44, Lednice, Czech Republic
Mendeleum – Institute of Genetics, Mendel University in Brno, Valtická 334, 691 44, Lednice, Czech Republic
Unité Résistance Induite et Bioprotection des Plantes USC INRAE 1488, Université de Reims Champagne–Ardenne, Moulin de la Housse, Bâtiment 18, Reims
Mendeleum – Institute of Genetics, Mendel University in Brno, Valtická 334, 691 44, Lednice, Czech Republic

Published 2023-09-15


  • Grapevine trunk diseases,
  • thymol,
  • eugenol,
  • epigallocatechin-3-O-gallate,
  • mycelium growth,
  • spore germination,
  • wound protection
  • ...More

How to Cite

ŠTŮSKOVÁ K., V. MONDELLO, HAKALOVÁ E., D. TEKIELSKA, F. FONTAINE, and A. EICHMEIER, “Phenolic compounds inhibit viability and infectivity of the grapevine pathogens Diplodia seriata, Eutypa lata, Fomitiporia mediterranea, and Neofusicoccum parvum”, Phytopathol. Mediterr., vol. 60, no. 2, pp. 307–319, Sep. 2023.


Many fungal pathogens are associated with grapevine trunk diseases (GTDs), which cause important yield and economic losses in grape production. There are no effective control methods against GTDs once plants are infected, so research is aimed at preventive measures to avoid infections in nurseries and vineyards. Inhibitory activities of the phenolic compounds eugenol, epigallocatechin–3–O–gallate (EGCG) and thymol against the GTD fungi Diplodia seriata, Eutypa lata, Fomitiporia mediterranea and Neofusicoccum parvum were assessed in vitro, and in planta as grapevine pruning wound treatments. Greatest inhibition of pathogen mycelium growth was observed with eugenol (fungistatic at 1,500 µg mL–1, fungicidal at 2,500 µg mL–1). No inhibitory activity against GTD fungi was observed with EGCG. Minimum concentrations with in vitro inhibitory effects on D. seriata and N. parvum spore germination were 360 µg mL–1 for thymol and 750 µg mL–1 for eugenol. In the grapevine wound protection tests, thymol was effective against N. parvum at 360 µg mL–1, but eugenol was not.


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