Uso do leite de vaca in natura no controle de oídio na cultura da gérbera

Jasper, Mônica; Pria, Maristella Dalla; Silva, Andressa Andrade e

doi:10.1590/s0100-54052009000400011

Cited by 3 publications

(4 citation statements)

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“…Cow's milk can be a control alternative for tomato powdery mildew because the severity of powdery mildew in the cow's milk treatment was significantly less than the control (P≤0.05) in all the evaluations (Table 3). The effect of raw cow's milk found in this study agrees with previous findings (Jasper, 2009;Bizi et al, 2008;Bettiol, 1999). Cow's milk stimulates microbiological activity in the phylloplane; moreover, it has a germicidal effect on powdery mildew (Stadnick and Bettiol, 2001).…”

Section: Discussionsupporting

confidence: 93%

“…Nevertheless, we did not use coadjuvants or attempt to use higher rates of milk application. These measures have been described as alternatives that can increase the effectiveness of cow's milk (Bizi, 2008;Jasper, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Different studies (Belanger and Labbe, 2002;Rivera, 2001 andBettiol, 1999) have suggested that cow's milk helps to control powdery mildew due to its germicidal effect, induction of SAR and/or tendency to favor the multiplication of antagonists. For instance, Jasper et al (2009) and Bizi et al (2008) obtained good results using 10% cow's milk for the control of E. polygoni and Erysiphe sp., respectively…”

Section: Introductionmentioning

confidence: 99%

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The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile

2013

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G. Sepúlveda-Chavera, R. Salvatierra-Martínez, and R. Andía-Guardia. 2013. The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile. Cien. Inv. Agr. 40(1):119-130. The powdery mildew complex (Leveillula taurica and Erysiphe sp.) is one of the major factors limiting tomato (Solanum lycopersicum) production in the Azapa Valley, Chile. This problem is especially severe in the case of protected crops because the options for the treatment of these crops with chemical fungicides are limited. This study evaluated the effects of 0.5 and 1.0 kg·100 L -1 Ospo-V55® and 10% raw cow's milk on tomato leaflets infected by powdery mildew complex. Ospo-V55®, with active ingredients consisting of 10% p/p of algae extract (IB-101) and 0.8% of microorganism concentrate, was evaluated in this study. Ospo-V55® contains flavonoids, alkaloids and phenols, oligo-and polysaccharides, 8.6% protein, 0.5% magnesium and trace amounts of riboflavin, niacin and ascorbic acid. Tacora Mas® (a mixture of 25% tebuconazole and 12.5% carbendazime) and Acoidal WG (wettable sulfur) were included for comparison with the Ospo-V55® and raw cow's milk treatments. A diagrammatic scale to assess the severity of the disease was validated and used to quantify the damage resulting from tomato powdery mildew and the effects of the treatments. The effect of the treatments on the germination of the conidia of L. taurica and Erysiphe sp. was also studied on water agar. Tacora Mas® provided the best control of powdery mildew in the field, followed by 1.0 kg·100 L -1 Ospo-V55® and Acoidal. However, Ospo-V55® was more effective than Acoidal. All treatments, including raw cow´s milk, significantly (P≤0.05) reduced disease severity in the leaf compared with the control. Both surfaces of the leaves were assessed, and better results were obtained on the upper surface. This difference was associated with differences in wetting. Acoidal was the most effective treatment for inhibiting conidia germination, decreasing germination more than 98.2%. This result differed significantly from the value of inhibition produced by Tacora Mas®. Ospo-V55® and raw cow´s milk showed significant differences (P≤0.05) in conidial germination compared with the control. Based on these results, we conclude that Ospo-V55 and raw cow´s milk can be used in an integrated management program as alternative treatments to control tomato powdery mildew complex.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile

2013

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“…Tanto na produção das mudas quanto na fase experimental propriamente dita foi empregada a solução nutritiva de Hoagland modificada por Epstein & Bloom (2006) Durante o experimento algumas plantas foram acometidas por oídio (Erysiphecichoracearum D.C.), sendo o controle bem-sucedido e feito com leite in natura (Jasper et al, 2009) diluído em água a 10% e aplicado com pulverizador manual.…”

Section: Methodsunclassified

Produção de girassol ornamental com uso de águas salobras em sistema hidropônico NFT

Maciel

Soares

Gheyi

et al. 2012

Rev. bras. eng. agríc. ambient.

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Plantas de girassol ornamental 'Sol Vermelho' foram cultivadas em hidroponia com o objetivo de avaliar o uso de águas salobras sobre seu rendimento e qualidade da inflorescência. As águas salobras foram usadas para preparar a solução nutritiva e repor as perdas por evapotranspiração. O experimento foi conduzido em delineamento inteiramente aleatorizado com cinco níveis de salinidade da água: 1,51; 2,56; 3,86 e 6,19 dS m-1, obtidos pela adição de NaCl na água doce local (0,47 dS m-1) que também foi usada como testemunha. Cada tratamento foi repetido quatro vezes e cada parcela (com quatro plantas) foi construída para simular um sistema independente da técnica do fluxo laminar de nutrientes (NFT). Observou-se uma redução linear causada pelo aumento da salinidade da água sobre a altura das plantas, o diâmetro do caule e a massa da matéria seca da parte aérea. Tanto a altura da planta quanto o diâmetro do caule foram reduzidos em 3,2% e a massa de matéria seca da parte aérea foi reduzida em 5,78% (dS m-1)-1, para cada acréscimo unitário da salinidade da água (dS m-1). Por outro lado, a salinidade da água não afetou o tamanho do capítulo do girassol e não foram registrados sintomas de toxicidade causados pela salinidade. Esses resultados sustentam a viabilidade técnica do uso de águas salobras para produção hidropônica de girassol ornamental.

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Control of Botrytis cinerea, Alternaria alternata and Pyrenochaeta lycopersici on tomato with whey compost-tea applications

et al. 2012

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Uso do leite de vaca in natura no controle de oídio na cultura da gérbera

Cited by 3 publications

References 1 publication

The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile

The alternative control of powdery mildew complex (Leveillula taurica and Erysiphe sp.) in tomato in the Azapa Valley, Chile

Produção de girassol ornamental com uso de águas salobras em sistema hidropônico NFT

Control of Botrytis cinerea, Alternaria alternata and Pyrenochaeta lycopersici on tomato with whey compost-tea applications

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