Essential Oils for Alternative Teak Rust Control

Osório, Pedro Raymundo Argüelles; Leão, Evelynne Urzêdo; Veloso, Ronice Alves; Mourão, Dalmarcia de Souza Carlos; Santos, Gil Rodrigues dos

doi:10.1590/2179-8087.039116

Cited by 13 publications

(16 citation statements)

References 15 publications

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“…From chromatographic analyses, the main components of noni and rosemary pepper oils identified were octanoic acid and thymol, respectively. These components are possibly responsible for the antifungal action of these oils [14,22,23]. Other studies validate the data obtained in This study.…”

Section: Discussionsupporting

confidence: 88%

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Botanical and chemical fungicides in the treatment of commercial seeds ofBrachiaria brizanthaandPanicum maximum

2021

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Brazil is the largest producer, consumer, and exporter of forage seeds in the world. However, the high incidence of pathogens threatens the seed production system, resulting in decreases in production and quality. Currently, the emphasis has been placed on the use of alternative products as a way of maintaining productivity and environmental sustainability. Thus, the objective of this study was to evaluate the mycoflora associated with the commercial seeds of Brachiaria brizantha and Panicum maximum treated with chemical and alternative fungicide. To test with chemical and alternative treatments, seeds were subjected to fluazinam + thiophanate-methyl, fludioxonil + metalaxyl-M, noni essential oil, rosemary pepper essential oil, sulfuric acid. There was also an untreated control. The most efficient products in the control of incident fungi were, in decreasing order, fluazinam + thiophanate-methyl, fludioxonil + metalaxyl-M, noni essential oil, rosemary pepper essential oil, and sulfuric acid. Fungicides mainly controlled the genera Alternaria, Aspergillus, Bipolaris, Chaetomium, Cladosporium, Colletotrichum, Curvularia, Fusarium, Penicillium, Phoma and Rhizopus. Essential oils showed positive effects in controlling Bipolaris, Curvularia, and Fusarium. Sulfuric acid reduced the incidence of Bipolaris, Colletotrichum, Curvularia, Fusarium, Phoma, and Rhizopus. Seed treatment is one of the promising strategies for obtaining seeds of a healthy quality. As a result, the fungicides and botanical components listed above were promising in reducing fungi associated with forage seeds and can be used for seed treatments and in the development of new products with a natural base through essential oils.

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Section: Discussionsupporting

confidence: 88%

“…Other studies validate the data obtained in This study. Octanoic acid is the component at the highest concentration in the oil of M. citrifolia [23][24][25], and thymol is a major component of the oil of Lippia sidoides [14,26].…”

Section: Discussionmentioning

confidence: 99%

Botanical and chemical fungicides in the treatment of commercial seeds ofBrachiaria brizanthaandPanicum maximum

2021

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“…Veras et al (2014) and Fontenelle et al (2007) reported the presence of 84.9 and 59.65% of thymol, respectively, as a major constituent in essential oils of L. sidoides. Different values were reported by Osorio et al (2018), where they obtained 64.03% concentration of octanoic acid (caprylic acid) and 8.64% hexanoic acid (caproic acid) in M. citrifolia essential oil. Pino et al (2010) identified 96 compounds, of which octanoic acid (70%) and hexanoic acid (8%) were the major components.…”

Section: Chemical Constituents Of Lippia and Noni Essential Oilsmentioning

confidence: 83%

Medicinal plant essential oils associated with biofilm to protect papaya fruits

et al. 2021

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The objective of this work was to associate the use of biofilms to Lippia sidoides (Lippia) and Morinda citrifolia (Noni) essential oils and their respective major constituents in post-harvest quality components. The evaluations in this study were chromatographic analysis the essential oils, fruit mass reduction effect, total soluble solids, peel color and fruit firmness. Regarding the adjustment and viability of the essential oil concentrations to be used in the treatments, a phytotoxicity test was performed. The main constituent found in Noni essential oil was octanoic acid, while for Lippia essential oil was thymol. The concentration of 3% of Noni and Lippia essential oils was the maximum to reach an acceptable level of phytotoxicity on papaya fruit peel. The paraffin + L. sidoides and paraffin + M. citrifolia treatments achieved the lowest reduction in pulp mass. In relation to total soluble solids, treatments did not show a significant difference. The best result for firmness was found in sunflower oil + noni coating. Sunflower oil + noni and sunflower oil + octanoic acid were the treatments that maintained normal yellow color in fruits for longer time.

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“…Dessa forma, houve o controle parcial da doença, atrasando a evolução da mesma. Osorio et al (2018) comprovaram que o controle da ferrugem na Teca obtido pela aplicação do óleo essencial, de noni foi parcial, possivelmente devido à presença de compostos tóxicos em grande quantidade nos óleos essenciais.…”

Section: Teste In Vivounclassified

“…O óleo de noni obteve melhor eficiência no controle preventivo quando comparado ao curativo. Estes resultados são semelhantes aos encontrados por Osorio et al (2018) que apontam resultados semelhantes para o óleo de noni. Sahoo et al (2012) observaram potencial fungitóxico do extrato de folhas de noni sobre as espécies fúngicas Aspergillus niger, Aspergillus fumigatus, Rhizopus oryzae, Helminthosporium sp.…”

Section: Teste In Vivounclassified

Potencial do óleo essencial de noni no controle preventivo e curativo da an-tracnose da mangueira

Fonseca

Rotili

Ferreira

et al. 2019

J. Biotechnol. Biodivers.

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A utilização de óleos essenciais tem sido usado como uma alternativa no controle de doenças e pragas pode ser uma alternativa viável. Na cultura da manga, a antracnose é considerada a principal doença por causar prejuízos na produtividade e qualidade dos frutos. O objetivo desse trabalho foi avaliar a utilização de óleo essencial de noni no controle preventivo e curativo da antracnose da mangueira. O fungo fitopatogênico foi obtido a partir do isolamento de lesões características de plantas de manga. O óleo essencial foi obtido a partir de frutos maduros de noni (Morinda citrifolia L.). Os bioensaios in vitro foram realizados testando-se diferentes concentrações do óleo essencial. Para o teste de fitotoxicidade foi utilizado cinco concentrações diferentes de óleo essencial de noni. O teste de controle preventivo foi instalado aplicando-se por meio de um borrifador manual. Também foi realizado o teste curativo. O óleo essencial de noni têm efeito inibitório no crescimento micelial da antracnose (C. gloeosporioides) in vitro em folhas de manga. Os sintomas de fitotoxicidade foram observados nas folhas de manga em doses de óleo de noni maior que 2,0%. A aplicação curativa do óleo de noni proporcionou controle parcial da doença. Na forma preventiva o uso de óleo de noni é mais eficiente que a curativa no controle da antracnose em plantas de manga. A aplicação do fungicida proporcionou eficiência de controle preventivo e curativo semelhante ao óleo de noni, demonstrando que o controle natural pode ser uma ótima opção de uso no manejo de doenças em plantas.

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Essential Oils for Alternative Teak Rust Control

Cited by 13 publications

References 15 publications

Botanical and chemical fungicides in the treatment of commercial seeds ofBrachiaria brizanthaandPanicum maximum

Botanical and chemical fungicides in the treatment of commercial seeds ofBrachiaria brizanthaandPanicum maximum

Medicinal plant essential oils associated with biofilm to protect papaya fruits

Potencial do óleo essencial de noni no controle preventivo e curativo da an-tracnose da mangueira

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