Grapevine inflorescences are susceptible to the bunch rot pathogens, Greeneria uvicola (bitter rot) and Colletotrichum acutatum (ripe rot)

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Abstract

Grapevine inflorescences (cv. Chardonnay) were found to be susceptible to infection by the berry rotting pathogens Colletotrichum acutatum and Greeneria uvicola responsible for ripe rot and bitter rot of grapes respectively. Infection of inflorescences on field-grown grapevines at mid-flowering led to subsequent berry rot at veraison. An application of the strobilurin fungicide Cabrio (active ingredient pyraclostrobin) at flowering reduced the incidence of ripe rot and bitter rot at veraison from 88% to 0% and from 86% to 2%, respectively. The infection of detached inflorescences was influenced by temperature and was greatest at 25'30°C for C. acutatum and 30°C for G.uvicola. Our results demonstrate for the first time that grapevine flowers are susceptible to C. acutatum and G. uvicola and that flower infections have the potentialto lead to subsequent rotting of the grape berries. The findings have implications for the management of ripe rot and bitter rot of grapes.
Original languageEnglish
Pages (from-to)773-778
Number of pages6
JournalEuropean Journal of Plant Pathology
Volume133
Issue number3
DOIs
Publication statusPublished - Jul 2012

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Colletotrichum acutatum
grapes
inflorescences
small fruits
pathogens
infection
pyraclostrobin
flowering
flowers
biological resistance
active ingredients
pesticide application
incidence
temperature

Cite this

@article{c06194dc180047eeb340b9c74798a998,
title = "Grapevine inflorescences are susceptible to the bunch rot pathogens, Greeneria uvicola (bitter rot) and Colletotrichum acutatum (ripe rot)",
abstract = "Grapevine inflorescences (cv. Chardonnay) were found to be susceptible to infection by the berry rotting pathogens Colletotrichum acutatum and Greeneria uvicola responsible for ripe rot and bitter rot of grapes respectively. Infection of inflorescences on field-grown grapevines at mid-flowering led to subsequent berry rot at veraison. An application of the strobilurin fungicide Cabrio (active ingredient pyraclostrobin) at flowering reduced the incidence of ripe rot and bitter rot at veraison from 88{\%} to 0{\%} and from 86{\%} to 2{\%}, respectively. The infection of detached inflorescences was influenced by temperature and was greatest at 25'30°C for C. acutatum and 30°C for G.uvicola. Our results demonstrate for the first time that grapevine flowers are susceptible to C. acutatum and G. uvicola and that flower infections have the potentialto lead to subsequent rotting of the grape berries. The findings have implications for the management of ripe rot and bitter rot of grapes.",
keywords = "Bunch rot, Fungicide, Pyraclostrobin, Viticulture, Vitis vinifera",
author = "Christopher Steel and Lindsay Greer and Sandra Savocchia",
note = "Imported on 12 Apr 2017 - DigiTool details were: month (773h) = July, 2012; Journal title (773t) = European Journal of Plant Pathology. ISSNs: 0929-1873;",
year = "2012",
month = "7",
doi = "10.1007/s10658-012-9957-9",
language = "English",
volume = "133",
pages = "773--778",
journal = "European Journal of Plant Pathology",
issn = "0929-1873",
publisher = "Springer Netherlands",
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TY - JOUR

T1 - Grapevine inflorescences are susceptible to the bunch rot pathogens, Greeneria uvicola (bitter rot) and Colletotrichum acutatum (ripe rot)

AU - Steel, Christopher

AU - Greer, Lindsay

AU - Savocchia, Sandra

N1 - Imported on 12 Apr 2017 - DigiTool details were: month (773h) = July, 2012; Journal title (773t) = European Journal of Plant Pathology. ISSNs: 0929-1873;

PY - 2012/7

Y1 - 2012/7

N2 - Grapevine inflorescences (cv. Chardonnay) were found to be susceptible to infection by the berry rotting pathogens Colletotrichum acutatum and Greeneria uvicola responsible for ripe rot and bitter rot of grapes respectively. Infection of inflorescences on field-grown grapevines at mid-flowering led to subsequent berry rot at veraison. An application of the strobilurin fungicide Cabrio (active ingredient pyraclostrobin) at flowering reduced the incidence of ripe rot and bitter rot at veraison from 88% to 0% and from 86% to 2%, respectively. The infection of detached inflorescences was influenced by temperature and was greatest at 25'30°C for C. acutatum and 30°C for G.uvicola. Our results demonstrate for the first time that grapevine flowers are susceptible to C. acutatum and G. uvicola and that flower infections have the potentialto lead to subsequent rotting of the grape berries. The findings have implications for the management of ripe rot and bitter rot of grapes.

AB - Grapevine inflorescences (cv. Chardonnay) were found to be susceptible to infection by the berry rotting pathogens Colletotrichum acutatum and Greeneria uvicola responsible for ripe rot and bitter rot of grapes respectively. Infection of inflorescences on field-grown grapevines at mid-flowering led to subsequent berry rot at veraison. An application of the strobilurin fungicide Cabrio (active ingredient pyraclostrobin) at flowering reduced the incidence of ripe rot and bitter rot at veraison from 88% to 0% and from 86% to 2%, respectively. The infection of detached inflorescences was influenced by temperature and was greatest at 25'30°C for C. acutatum and 30°C for G.uvicola. Our results demonstrate for the first time that grapevine flowers are susceptible to C. acutatum and G. uvicola and that flower infections have the potentialto lead to subsequent rotting of the grape berries. The findings have implications for the management of ripe rot and bitter rot of grapes.

KW - Bunch rot

KW - Fungicide

KW - Pyraclostrobin

KW - Viticulture

KW - Vitis vinifera

U2 - 10.1007/s10658-012-9957-9

DO - 10.1007/s10658-012-9957-9

M3 - Article

VL - 133

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JO - European Journal of Plant Pathology

JF - European Journal of Plant Pathology

SN - 0929-1873

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