Biological control of fruit pathogens

Elmer, R.A.G.; Hoyte, S.M.; Vanneste, J.L.; Regliński, T.; Wood, R.N.; Parry, Frank

doi:10.30843/nzpp.2005.58.4253

Cited by 21 publications

(14 citation statements)

References 25 publications

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“…The treatment with U. oudemansii and then chitosan (BZ‐AZ) also reduced botrytis bunch rot incidence and severity, achieving similar reduction levels to those reported by Reglinski et al . () and other studies applying U. oudemansii alone or combined with synthetic fungicide programmes in New Zealand (Elmer et al ., ). The results reported here and in New Zealand are in contrast with those of Mehofer et al .…”

Section: Discussionmentioning

confidence: 97%

Biological control of botrytis bunch rot in organic wine grapes with the yeast antagonist Candida sake CPA‐1

et al. 2012

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The aim of this research was to confirm the efficacy of the yeast antagonist Candida sake CPA-1 in suppressing botrytis bunch rot development, in an organic vineyard under Mediterranean conditions for two seasons, and compare its performance with that of two biologically based products currently registered for botrytis bunch rot control in New Zealand. In 2009, treatments applied were: commercial formulations of Ulocladium oudemansii (BOTRY-Zen ® ) and chitosan (ARMOUR-Zen ® ), C. sake CPA-1 combined with the fatty acid-based additive Fungicover ® and combinations of these products. All treatments were applied six times between early flowering and harvest and compared with an unsprayed control. In 2010, the treatments focused on C. sake and Fungicover and the number of applications was reduced from six to four. The population dynamics of U. oudemansii and C. sake were measured and wine quality tests were carried out in both seasons. Disease control achieved by C. sake treatments in 2009 were comparable to those achieved by BOTRY-Zen and ARMOUR-Zen. Applications of C. sake plus Fungicover between flowering and harvest significantly (P < 0Á05) reduced botrytis bunch rot incidence and severity by 64% and 90%, respectively, compared with the untreated control in 2009, and by 67% and 89%, respectively, in 2010. Treatments did not adversely affect wine quality parameters after treated grapes were processed. Candida sake consistently provided effective control of botrytis bunch rot in grapes under different meteorological and disease pressure conditions, thereby improving its potential for future commercial applications.

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Section: Discussionmentioning

confidence: 97%

Biological control of botrytis bunch rot in organic wine grapes with the yeast antagonist Candida sake CPA‐1

et al. 2012

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“…Field efficacy of Botry‐Zen was demonstrated over a wide range of botrytis disease pressure conditions and ranged from 81 to 91% in multisite vineyard trials (cv. Chardonnay) over three seasons (2002–05) in the Hawke's Bay region of NZ (Elmer et al ., 2005).…”

Section: Microbial Suppression Of Botrytis Cinereamentioning

confidence: 99%

Biosuppression of Botrytis cinerea in grapes

Elmer

Regliński²

2006

Plant Pathology

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There is increasing interest in the use of biological control agents (BCAs) and plant resistance stimulants to suppress botrytis bunch rot in grapes, caused by Botrytis cinerea . Numerous different filamentous fungi, bacteria and yeasts have been selected as potential BCAs for control of grey mould based upon demonstrated antagonism towards B. cinerea. Biological suppression of the pathogen arises via competition for nutrients and space, the production of inhibitory metabolites and/or parasitism. Preformed and inducible grapevine defence mechanisms also contribute to disease suppression by preventing or delaying pathogenic infection. Furthermore, various biotic and abiotic agents can stimulate grapevine defence mechanisms and so elevate resistance to B. cinerea infection. Biosuppression of B. cinerea in vineyards, using BCAs and resistance stimulants, has been inconsistent when compared with that observed in controlled glasshouse or laboratory conditions. This may be attributable, in part, to the innate variability of the field environment. Research to improve field efficacy has focused on formulation improvement, the use of BCA mixtures and combinational approaches involving BCAs and plant resistance stimulants with complementary modes of action.

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“…Biological control agents, particularly fungi and yeasts, have been successfully implemented in New Zealand, e.g. for botrytis bunch rot control in the wine industry (Elmer et al 2005). System redesign to achieve non-chemical disease control will require improved understanding of the microbial ecology of pathosystems, including the impacts of fungicides on non-target and potentially beneficial microbes.…”

Section: Science For System Re-designmentioning

confidence: 99%

Towards reduced reliance on fungicides for disease control in New Zealands cropbased industries

Beresford¹

2010

NZPP

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The challenge faced by New Zealands fruit vegetable and arable sectors is to reduce the negative impacts of fungicides on market access environmental sustainability and consumer confidence while at the same time achieving adequate disease control for export market and international regulatory requirements Controlling diseases in a humid climate with ever increasing restrictions on agrichemicals and few effective alternatives to fungicides requires redesign of disease management systems Research into redesign includes improved resistance of crop cultivars improved understanding of microbial interactions between fungicides biological controls and nontarget microbes and completely novel methods based on molecular genetics Disease forecasting systems can improve the efficiency of fungicide use The success of new approaches must measured by a reduction in fungicide loading Success depends on the linking of new research to effective technology transfer that will give cropbased industries courage to try new methods and the confidence to know they are not risking their economic viability

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Biological control of fruit pathogens

Cited by 21 publications

References 25 publications

Biological control of botrytis bunch rot in organic wine grapes with the yeast antagonist Candida sake CPA‐1

Biological control of botrytis bunch rot in organic wine grapes with the yeast antagonist Candida sake CPA‐1

Biosuppression of Botrytis cinerea in grapes

Towards reduced reliance on fungicides for disease control in New Zealands cropbased industries

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