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Fungicide resistance in diseases of vegetables growing under plastic in Crete 1
Author(s) -
MALATHRAKIS N. E.
Publication year - 1986
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.1365-2338.1986.tb00300.x
Subject(s) - sphaerotheca , fungicide , pseudoperonospora cubensis , benomyl , botrytis cinerea , biology , resistance (ecology) , metalaxyl , horticulture , powdery mildew , botrytis , agronomy , botany
Serious fungicide resistance problems have been encountered in several major vegetable pathogens in glasshouses in Crete. Botrytis cinerea populations are now widely resistant to either or both benzimidazoles and dicarboximides. Pseudoperonospora cubensis very rapidly became resistant to metalaxyl, with cross resistance to other acylalanines. Didymella bryoniae has shown some benzimidazolc resistance. Sphaerotheca fuliginea , against which a great diversity of fungicides is used, has mostly not given problems. However, strains with resistance to benomyl, triforine and ditalimfos have been found in experimental plots. Ways of managing resistance in Crete are discussed.