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Synergism between fungicides with different mechanisms of action against acylalanine‐resistant strains of Phytophthora spp. 1
Author(s) -
GARIBALDI A.,
ROMANO M. L.,
GULLINO M. L.
Publication year - 1985
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.1985.tb00267.x
Subject(s) - fungicide , phytophthora capsici , phytophthora , mycelium , limiting , biology , botany , horticulture , mechanical engineering , engineering
The authors have studied the efficacy of two systemic compounds, cymoxanil and propamocarb, used as partners of acylalanines, in limiting mycelial growth of acylalanine‐sensitive and resistant strains of Phytophthora capsici and P. nicotianae var. parasitica. The fungicidal activity of the single components was compared to that of the different mixtures, at various ratios. The degree of synergy was calculated using the method of Wadley. The results obtained indicate synergistic interactions of various intensities: synergistic factors (SF) up to seven were found. The highest synergistic effects were observed in the case of resistant Phytophthora strains.