Entomopathogenic Fungi as Dual Control Agents against Two Phytopathogens and the Lepidopteran Pest Rachiplusia nu in Soybean ( Glycine max (L.) Merr)

Soybean ( ) is one of the most important crops worldwide. This crop is prone to diseases caused by the phytopathogenic fungi , and the lepidopteran pest . Biological control using entomopathogenic fungi is a sustainable alternative to chemical pesticides. In this study, we assessed the antifungal ac...

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Bibliographic Details
Published in:Journal of fungi (Basel) 2024-02, Vol.10 (2), p.93
Main Authors: Russo, María Leticia, Vianna, María Florencia, Scorsetti, Ana Clara, Ferreri, Natalia, de Abajo, Juan Manuel, Troncozo, María Inés, Pelizza, Sebastián Alberto
Format: Article
Language:English
Subjects:
Agricultural production
Antagonists
Antifungal activity
Bioassays
Biological control
Chemical pest control
Crop diseases
Crops
Endophytes
Entomopathogenic fungi
Food preferences
Fungi
Glycine max
Humidity
Insects
Leaves
Pathogenicity
Pathogens
Pest control
Phytopathogenic fungi
Rachiplusia nu
Seeds
Soybeans
Variance analysis
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Summary:Soybean ( ) is one of the most important crops worldwide. This crop is prone to diseases caused by the phytopathogenic fungi , and the lepidopteran pest . Biological control using entomopathogenic fungi is a sustainable alternative to chemical pesticides. In this study, we assessed the antifungal activity of and against phytopathogens and the pathogenicity of as an endophyte against . The antagonic activity of the fungal entomopathogens was evaluated in vitro by dual culture bioassays. The feeding preference of was evaluated in a "free choice" assay under laboratory conditions. Entomopathogenic fungi inhibited the mycelial growth of the phytopathogens. The best response in all cases was observed when the antagonists were placed in the culture medium two days before the pathogens. was the best antagonist of , while both antagonists had similar inhibitory effects on growth. Additionally, , when grown as an endophyte, reduced insects' food preferences and decreased soybean consumption. Findings suggest that entomopathogenic fungi can fulfill multiple roles in the ecosystem. Therefore, the simultaneous expression of both properties should be considered for their application in integrated pest management programs.
ISSN:2309-608X
2309-608X
DOI:10.3390/jof10020093