Antagonistic microorganisms and nitrogen fertilization in control of tomato southern blight

Blanco, Neder Henrique Martinez; Barbosa, Danilo Ferreira Ramirez; Graichen, Felipe André Sganzerla

doi:10.1590/1808-1657000502019

Cited by 4 publications

(3 citation statements)

References 27 publications

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“…The paired growth was performed by depositing mycelium discs of the pathogen and antagonist on opposite sides of the same Petri dish containing BDA, positioning them 1 cm from the edge of the plate, and incubated at a temperature of 25 ± 2 °C and photoperiod of 12-hours of measured light (Blanco et al, 2021). Plates containing S. rolfsii without antibiosis were incubated under the same conditions.…”

Section: Biocontrol Of T Harzianum On S Rolfsiimentioning

confidence: 99%

“…The inoculum of S. rolfsii was produced on milled rice grains according to the method of Blanco et al (2021). Rice grains were immersed in distilled water for 2 hours and autoclaved.…”

Section: Biocontrol Of T Harzianum On Southern Blightmentioning

confidence: 99%

“…It is possible that microorganisms with biocontrol potential are underutilized in incorrect management systems (Spadaro & Gullino, 2005) or with inadequate applications (Blanco et al, 2021). Being composed of a microorganism and not a chemical formulation, biofungicides are more susceptible to factors involving application technology, such as pH, humidity and temperature, as well as being affected by the way they are introduced (Spadaro & Gullino, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Efficiency and delivery methods of Trichoderma harzianum on biological control against southern blight in sweet pepper

Blanco

Mendonça

Graichen

2022

Agraria

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Soilborne pathogens are difficult to control with limited options, and it is important to seek effective alternatives for management. The objective of this study was to evaluate the effect of Trichoderma harzianum on the biological control of southern blight. The commercial product Trichodermil, containing the antagonist, was used for in vitro antagonism evaluation, followed by in vivo assays, with different forms of biocontrol application in Capsicum annuum seedlings inoculated with Sclerotium rolfsii. The biocontrol conditions used in the tests were: 1) without inoculation of the pathogen; 2) furrow spraying; 3) foliar spraying; 4) immersion of roots in spore suspension; 5) without biocontrol. The T. harzianum isolate tested produces antifungal metabolites that reduce mycelial growth and germination of the pathogen. In the in vivo tests, an effect of the application in the sowing furrow on the root mass of the plants was observed. However, none of the treatments prevented plant mortality. The biocontrol agent T. harzianum does not work as a stand-alone strategy for management of southern blight, but has potential for use in integrated management programs.

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Section: Biocontrol Of T Harzianum On S Rolfsiimentioning

confidence: 99%

“…The inoculum of S. rolfsii was produced on milled rice grains according to the method of Blanco et al (2021). Rice grains were immersed in distilled water for 2 hours and autoclaved.…”

Section: Biocontrol Of T Harzianum On Southern Blightmentioning

confidence: 99%