Inibição micelial in vitro de Sclerotinia sclerotiorum por fungicidas

Sumida, Ciro Hideki; Canteri, Marcelo Giovanetti; Peitl, Douglas Casaroto; Orsini, Idenize Pedrina; Tibolla, Fabiana; Araújo, Felipe André; Chagas, Débora Fonseca

doi:10.1590/s0100-54052014000100016

Cited by 2 publications

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“…The treatments (6) Procymidone and (8) Trichoderma harzianum 1306 (4,8%) did not differ from the witnesses (Table 5). Contrasting results were described by Oliveira et al (1999), where the authors observed that Fluazinam and Vinclozin were more than 90% efficient in reducing carpogenic germination of sclerotia when they were submerged for one minute in the solution containing the respective fungicides. Carbendazim had an efficiency of only 25%, not differing from the control, procymidone showed an intermediate efficiency of approximately 45%.…”

Section: Resultsmentioning

confidence: 65%

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FUNGICIDES AND BIOCONTROL AGENTS IN REDUCING CARPOGENIC GERMINATION OF SCLERODIA Sclerotinia sclerotiorum in vitro

Roza,

Casa,

Gonçalves

2023

ASCS

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The experiment in the laboratory was conducted in 2020, where sclerotia of Sclerotinia sclerotiorum were subjected to the application of different chemical and biological fungicides, described as follows: 1-Methyl thiophanate + Fluazinam (37.5+37.5%); 2-Fluazinam (50%); 3-Dimoxystrobin +Boscalid (20+20%); 4-Methyl thiophanate (87.5%); 5-Bixafen + Prothioconazole + Trifloxyxtrobin (12.5+17.5+15.0%); 6-Procymidone (50%); 7-Carbendazim (50%); 8-Trichoderma harzianum 1306 (4,8%); 9-Trichoderma harzianum cepa T-22 (1%); 10-Bacillus subtilus linh. QST 713. Doses indicated by the manufacturers in volume of syrup were used. 100 L. ha -1 . The products were evaluated in two ways: a) by immersing the sclerotia in the properly prepared mixture for a period of five seconds, b) by spraying the mixture onto the sclerotia positioned on the surface of the soil inside acrylic boxes. In the immersion method, the sclerotia were subsequently seeded in water agar medium, ten per Petri dish. In the spraying method, twenty-five sclerotia were distributed inside each acrylic box. In both methods, 200 sclerotia were analyzed per treatment. The sclerotia were incubated for a period of 45 days at a temperature of 16ºC for twelve hours without light and 20ºC for twelve hours with light. After this period, germinated sclerotia were counted. The results indicated that, when the treatments were applied directly to the sclerotia (immersion in syrup), carpogenic germination was reduced, with the treatments Dimoxystrobin + Boscalid and Carbendazim standing out among the best results, while the treatments Procymidone and Trichoderma harzianum 1306 obtained control efficiency similar to the control, while the others presented intermediate performance. However, this effect was not repeated when the products were applied to the sclerotia positioned on the ground. It was also observed under the conditions of this experiment that treatments containing biocontrol agents were not efficient in reducing the carpogenic germination of the fungus and none of the methodologies evaluated.

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Section: Resultsmentioning

confidence: 65%

“…Carbendazim had an efficiency of only 25%, not differing from the control, procymidone showed an intermediate efficiency of approximately 45%. However, there is a difference regarding the time of exposure of sclerotia to the fungicide between the two studies, being one minute in the case of Oliveira et al (1999) and five seconds in this one.…”

Section: Resultsmentioning

confidence: 82%

FUNGICIDES AND BIOCONTROL AGENTS IN REDUCING CARPOGENIC GERMINATION OF SCLERODIA Sclerotinia sclerotiorum in vitro

Roza,

Casa,

Gonçalves

2023

ASCS

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Potencial fungicida de cinco extractos vegetales sobre Lasiodiplodia theobromae, Fusarium spp y Curvularia spp

Reyes Castro,

Lorenzo Nicao,

Castellanos González

et al. 2022

Cienc. Tecnol. Agropec.

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La investigación tuvo como objetivo evaluar el efecto potencial como fungicida de cinco extractos acuosos de plantas frente a tres hongos patógenos Lasiodiplodia theobromae (Pat.) Griff.et Maublen, Fusarium spp y Curvularia spp aislados de semillas de caoba hondureña Switenia macrophylla King. Los ensayos se realizaron en el laboratorio de Micología perteneciente al Laboratorio Provincial de Sanidad vegetal, Cienfuegos. Se evaluaron los extractos acuosos de Moringa oleifera Lam (moringa), Morinda citrifolia L. (noni), Ricinus communis L. (higuereta), Momordica charantia L. (cundeamor) y Piper auritum Kunth (caisimón de anís). Para determinar el potencial fungicida, se midió el crecimiento micelial de los tres hongos a los tres, siete y 10 días posteriores al tratamiento con los extractos al 2,5 % y se determinó el porcentaje de inhibición del crecimiento radial contra un control. Los datos en porcentaje se transformaron en 2 arcsen %/100, y se sometieron a un análisis de varianza, haciéndose las comparaciones por la prueba de Tukey (p<0,05). Se utilizó el paquete estadístico SPSS versión 15 para WINDOW. Los extractos manifestaron entre 98 y 100 % de inhibición a los siete y 10 días sobre los hongos estudiados, sin embargo, a los tres días moringa, caisimón y cundeamor ejercieron un efecto similar sobre los tres hongos patógenos, mientras que la higuereta fue superior sobre Fusarium spp y noni sobre Curvularia spp. y L. theobromae.

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Inibição micelial in vitro de Sclerotinia sclerotiorum por fungicidas

Cited by 2 publications

References 0 publications

FUNGICIDES AND BIOCONTROL AGENTS IN REDUCING CARPOGENIC GERMINATION OF SCLERODIA Sclerotinia sclerotiorum in vitro

FUNGICIDES AND BIOCONTROL AGENTS IN REDUCING CARPOGENIC GERMINATION OF SCLERODIA Sclerotinia sclerotiorum in vitro

Potencial fungicida de cinco extractos vegetales sobre Lasiodiplodia theobromae, Fusarium spp y Curvularia spp

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