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Sclerotia of Botrytis as a Source of Primary Inoculum for Bunch Rot of Grapes in New South Wales, Australia
Author(s) -
Nair N. G.,
Nadtotchei A.
Publication year - 1987
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1987.tb04382.x
Subject(s) - iprodione , vinclozolin , biology , germination , conidium , botrytis cinerea , procymidone , botrytis , horticulture , botany , fungicide
Sclerotia of Botrytis cinerea were found to be a source of primary inoculum for bunch rot of grapes in the Hunter Valley of New South Wales. Conidia‐bearing sclerotia were found on canes on grapevines. Resporulation of sclerotia was observed and sporogenic germination led to infection of flowers and berries. Sclerotia survived for eight months in untreated soil in the laboratory. Application of dicarboximides (procymidone, iprodione and vinclozolin) reduced infection of flowers and bunch rotcaused by the sporogenic germination of sclerotia.