Efficacy of biocontrol agents and natural compounds against powdery mildew of zucchini

Gilardi, G.; Baudino, M.; Garibaldi, A.; Gullino, M. L.

doi:10.1007/s12600-011-0206-0

Cited by 19 publications

(13 citation statements)

References 19 publications

(24 reference statements)

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“…Apesar da reconhecida eficiência do enxofre em controlar doenças fúngicas, em especial os oídios (GILARDI et al, 2012), não foi verificado efeito significativo de manejo de míldio no presente estudo. Provavelmente o modo de aplicação, via solo e não foliar, esteja relacionado com essa ineficiência de controle.…”

Section: Resultsunclassified

Uso de enxofre na cultura da cebola em sistemas orgânico e convencional para o manejo de tripes e míldio e análise de rendimento

Gonçalves¹,

Araújo²,

Kürtz³

et al. 2017

Revista Thema

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RESUMOO objetivo deste estudo foi avaliar o efeito de doses de enxofre aplicado em cobertura no solo no manejo de tripes, Thrips tabaci (Thysanopetra: Thripidae), e de míldio, Peronospora destructor, produtividade e rendimento pós-colheita de cebola, em sistemas orgânico e convencional. Palavras-chave: Allium cepa, Thrips tabaci, Peronospora destructor, agroecologia, produtividade. ABSTRACTThe objective of this study was to evaluate the effect of sulphur doses applied in soil cover on the management of thrips, Thrips tabaci (Thysanopetra: Thripidae), downy mildew (Peronospora destructor), yield and postharvest of onion under organic and conventional system. In separate experiments for both systems were applied the following treatments: sulphur doses of 25 kg ha-1, 50 kg ha-1, and 75 kg ha-1 and control without application. Sulphur doses were applied associated with cover fertilization at 33 and 36 days after transplanting for organic and conventional systems, respectively. The sulphur source was the Sulfacal® fertilizer (Ca = 16%, S = 13%). Phytosanitary management, yield and post-harvest were not influenced by the treatments. The addition of sulphur did not alter the other physical-chemical attributes of the soil. Leaf sulphur level was increased according to a positive linear relationship in organic system y = 4.2 + 0.02x (R2 = 0.41%, p = 0.0023) and was incremented by the dose of 75 kg ha-1 in the conventional system.

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Section: Resultsunclassified

Uso de enxofre na cultura da cebola em sistemas orgânico e convencional para o manejo de tripes e míldio e análise de rendimento

Gonçalves¹,

Araújo²,

Kürtz³

et al. 2017

Revista Thema

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“…; Gilardi et al. ). Moreover, this application strategy, with only one application of synthetic fungicide, could support the adherence to the law admitted maximum pesticide residue limit on the crop.…”

Section: Discussionmentioning

confidence: 98%

“…; Gilardi et al. ). Its symptoms appear a few days after the infection as white, powdery spots formed on leaf surfaces, petioles and stems, and rarely on fruits; plants infected show reduced vigour and defoliation (Perez‐Garcia et al.…”

Section: Introductionmentioning

confidence: 98%

“…The Cucumber family is composed of a various medium-sized species grown around the world's warmer regions: they are among the earliest cultivated plants in both the Old and New Worlds. Among cultivated types there is zucchini (Cucurbita pepo L.), economically important crop in the Mediterranean countries that is susceptible to the powdery mildew fungus, Podosphaera xanthii (Castagne) U. Braun & N. Shishkoff [= Podosphaera fusca (Castagne) U. Braun & N. Shishkoff], obligate biotrophic ectoparasite that usually grown on the plant surface and is responsible for yield losses in cucurbit crops worldwide (Galletti et al 2008;Perez-Garcia et al 2009;Giampaolo et al 2010;Gilardi et al 2012). Its symptoms appear a few days after the infection as white, powdery spots formed on leaf surfaces, petioles and stems, and rarely on fruits; plants infected show reduced vigour and defoliation (Perez-Garcia et al 2009).…”

Section: Introductionmentioning

confidence: 99%

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Use of Essential Oils in Control Strategies against Zucchini Powdery Mildew

Donnarumma

Milano

Trotta

et al. 2015

Journal of Phytopathology

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Centro di ricerca per la patologia vegetale, Consiglio per la ricerca e la sperimentazione in agricoltura, Rome, Italy Keywords essential oils, integrated management, powdery mildew, quinoxyfen, zucchini Correspondence L. Donnarumma, Centro di ricerca per la patologia vegetale, Consiglio per la ricerca e la sperimentazione in agricoltura, Rome, Italy. E-mail:lucia.donnarumma@entecra.it AbstractThe growing interest in the substitution of 'synthetic pesticides' by natural ones has fostered the research on vegetable sources and the screening of plant materials to identify new compounds. The aim of this study was to evaluate the efficacy of several essential oils used alone and alternating with a synthetic fungicide. Experimental trials were carried out in greenhouse during the years 2012-2013 testing four alternative application programmes. Chemical composition of the essential oils and evaluation of their residues on treated zucchini leaves were reported by a gas chromatography-mass spectrometry (GC/MS) analysis. Moreover, relative density analyses were carried out. The obtained results showed that the alternation of essential oils and synthetic chemicals can maintain a disease control, resulting that an integrated control management of zucchini powdery mildew is able to reduce the use of synthetic fungicides.

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“…sulfur compounds), could be useful for achieving successful disease control and minimising the risk of developing resistance. In addition, growers should be encouraged either to grow powdery mildew‐resistant varieties or to use alternative control measures such as natural compounds or biological control agents . In other words, IPM tactics should be implemented to control the disease in a more rational manner …”

Section: Discussionmentioning

confidence: 99%

Sensitivity of Podosphaera xanthii populations to anti-powdery-mildew fungicides in Spain

et al. 2014

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Efficacy of biocontrol agents and natural compounds against powdery mildew of zucchini

Abstract: This is the author's final version of the contribution published as:

Cited by 19 publications

References 19 publications

Uso de enxofre na cultura da cebola em sistemas orgânico e convencional para o manejo de tripes e míldio e análise de rendimento

Uso de enxofre na cultura da cebola em sistemas orgânico e convencional para o manejo de tripes e míldio e análise de rendimento

Use of Essential Oils in Control Strategies against Zucchini Powdery Mildew

Sensitivity of Podosphaera xanthii populations to anti-powdery-mildew fungicides in Spain

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