Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii

Nájera, José Francisco Díaz; Castellanos, Jaime Sahagún; Vargas-Hernández, Mateo; Serna, Sergio Ayvar; Gómez, Omar Guadalupe Alvarado; Verduzco, Clemente Villanueva; Ramos, Marcelo Acosta

doi:10.5423/ppj.oa.08.2017.0185

Cited by 6 publications

(1 citation statement)

References 16 publications

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“…For the greenhouse experiment, this species was multiplied in steamed rice according to Charoenrak and Chamswarng (2016), while sclerotia were collected from the culture on PDA (Fig. 1C) at the same radial distance from the initial mycelial agar plug at the center (Nájera et al, 2018).…”

Section: Antagonistic Trichoderma Fungimentioning

confidence: 99%

Vermicompost in combination with Trichoderma asperellum isolate T13 as bioagent to control sclerotium rot disease on vegetable soybean seedlings

2022

ANRES

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Importance of the work:Vermicompost is utilized as biofertilizer, especially in organic farming systems. It has potential for soilborne plant disease control but empirical studies are scarce. Objectives: To test the effect of vermicompost from African nightcrawler in combination with Trichoderma asperellum isolate T13 on the mycelial growth of Athelia rolfsii in vitro and the incidence of sclerotium rot disease on vegetable soybean seedlings under greenhouse conditions. Materials & Methods: Fungal confrontation assay using either vermicompost filtrate or in combinations with varied spore concentrations of T. asperellum isolate T13 was conducted to observe antagonistic activity against the mycelial growth of A. rolfsii in vitro. Vegetable soybean seeds were sown in the greenhouse in soil mixed with vermicompost and pathogen inoculum (mycelia or sclerotia) to observe the disease incidence on the seedlings. Results: For the in vitro bioassay, adding half the proportion of T. asperellum isolate T13 spores (1 × 10 8 spores/mL) relative to the total volume resulted in 80.4% inhibition of A. rolfsii diameter growth, producing the best antagonistic activity. Under greenhouse conditions, the soil amended with mycelial inoculum and pure vermicompost led to significantly lower disease incidence (19.7%) than for the pathogen-inoculated control (40.7%) and the mixture of vermicompost and T. asperellum isolate T13 (34.7%). However, no disease incidence was observed with soil amendment using vermicompost, T. asperellum isolate T13 and sclerotia. Main finding: Vermicompost can be used as a bioagent for soilborne disease control, especially when combined with T. asperellum isolate T13, suggesting a strategy to prevent sclerotium disease incidence rather than trying to control actively growing mycelia.

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Section: Antagonistic Trichoderma Fungimentioning

confidence: 99%

Vermicompost in combination with Trichoderma asperellum isolate T13 as bioagent to control sclerotium rot disease on vegetable soybean seedlings

2022

ANRES

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Characterization of Sclerotium rolfsii Causing Root Rot of Sugar Beet in Bangladesh

et al. 2021

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Global Distribution, Identification, Pathogenesis, and Advanced Management Strategies for Sclerotium Root Rot in Sugar beet

Misra,

Mall

2024

Sugar Tech

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Diagnosis and Integrated Management of Fruit Rot in Cucurbita argyrosperma, Caused by Sclerotium rolfsii

Cited by 6 publications

References 16 publications

Vermicompost in combination with Trichoderma asperellum isolate T13 as bioagent to control sclerotium rot disease on vegetable soybean seedlings

Vermicompost in combination with Trichoderma asperellum isolate T13 as bioagent to control sclerotium rot disease on vegetable soybean seedlings

Characterization of Sclerotium rolfsii Causing Root Rot of Sugar Beet in Bangladesh

Global Distribution, Identification, Pathogenesis, and Advanced Management Strategies for Sclerotium Root Rot in Sugar beet

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