Soil treatment with Beauveria and Metarhizium to control fall armyworm, Spodoptera frugiperda, during the soil-dwelling stage

Jeon, Insoo; Kim, Jae Su

doi:10.1016/j.aspen.2023.102193

Cited by 4 publications

(4 citation statements)

References 28 publications

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“…The National Institute of Agricultural Sciences, Republic of Korea, provided the colonies of S. frugiperda. The larvae were maintained on a modified artificial diet [23,24], and the insects were maintained at 27 ± 1 • C with a RH of 50 ± 5% and a 14:10 (L:D) photoperiod.…”

Section: Spodoptera Frugiperdamentioning

confidence: 99%

“…New leaves were provided according to the larvae's needs. The number of dead larvae was evaluated daily for one week [23]. The mortality was calculated by the proportion of dead larvae compared to the total number of S. frugiperda larvae, as demonstrated above with the aphids.…”

Section: Spodoptera Frugiperdamentioning

confidence: 99%

“…Previous laboratory studies demonstrated that the isolate JEF-492 is virulent against S. frugiperda [23]. Therefore, we evaluated the supernatant's potential to increase the fungal virulence.…”

Section: Spodoptera Frugiperdamentioning

confidence: 99%

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The Combination of Enzymes and Conidia of Entomopathogenic Fungi against Aphis gossypii Nymphs and Spodoptera frugiperda Larvae

Ferreira,

Fernandes,

Kim

et al. 2024

JoF

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The slow action of fungi is one of the biggest challenges in using entomopathogenic fungi. A promising alternative to reduce the time of action is to combine conidia with extracellular enzymes. This study aimed to characterize the production of Pr1 subtilisin protease and lipases by Beauveria bassiana and Metarhizium anisopliae in different culture media and to evaluate the efficiency of the enzymatic treatment against Aphis gossypii and Spodoptera frugiperda. The isolates were cultivated in five different liquid cultures, and, after 7 days, the culture was filtered and centrifuged, and the activity of the Pr1 and lipases was measured. The fungi cultured in a Luria–Bertani broth medium had the highest activity of proteases and lipases. The mortality of A. gossypii nymphs treated with conidia 7 days after the treatment was 39% (JEF-410), 76.5% (JEF-492), 74.8% (ERL-836), and 70.9% (JEF-214). The B. bassiana JEF-410 supernatant combined with conidia increased the fungal virulence at day 5 and day 6 after treatment. When S. frugiperda larvae were treated with B. bassiana JEF-492 conidia combined with its supernatant, the time of infection was shorter compared to the larvae treated with conidia only. Once the supernatant was incubated at 37 °C, the relative activity decreased from 100% to 80% after 2 h and to 45% after 24 h. The results suggest that the supernatant of entomopathogenic fungi may be formulated and used as a biopesticide in an efficient strategy for the biological control of pests.

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Section: Spodoptera Frugiperdamentioning

confidence: 99%

Section: Spodoptera Frugiperdamentioning

confidence: 99%

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The Combination of Enzymes and Conidia of Entomopathogenic Fungi against Aphis gossypii Nymphs and Spodoptera frugiperda Larvae

Ferreira,

Fernandes,

Kim

et al. 2024

JoF

Self Cite

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“…This is not only due to the pathological characteristics of entomopathogenic fungi, but also proves the virulence of entomopathogenic fungi. At present, the typical entomopathogenic fungi, Metarhizium spp., is widely used in biological control of pests [16,17]. In particular, for the management of species such as A. glabripennis, Monochamus alternatus Hope, Aedes aegypti Linnaeus, Nilaparvata lugens Stal, and Melanoplus bivittatus Say, Metarhizium spp.…”

Section: Introductionmentioning

confidence: 99%

Virulence and Pathological Characteristics of a New Metarhizium anisopliae Strain against Asian Long-Horn Beetle Anoplophora glabripennis Larvae

Zheng,

Jian,

Wang

2024

Forests

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The Asian long-horn beetle (ALB) is a serious wood-boring insect. Continuous isolation of different fungal strains is vital for using fungi for the control of ALB. The virulence and pathological characteristics of a new Metarhizium anisopliae strain DES3 isolated from the desert afforestation stands against the larvae of ALB were assessed in this study. The corrected mortality reached 100% at the conidial concentration of 109 and 108 conidia/mL, and 91.11 ± 4.44% at 107 conidia/mL. Similarly, the LC/LT showed high virulence as well. Meanwhile, the virulence of a commercial M. anisopliae strain against the ALB larvae was evaluated. The corrected mortality was only 33.33% at 109 conidia/mL, and less than 10% at 108 conidia/mL. The pathological characteristics after infection by the M. anisopliae strain DES3 were evident, mainly embodied in the rupture of the adipose tissue, muscle tissue, and midgut. But there was no obvious change after infection by the commercial M. anisopliae strain. In conclusion, these results establish that the M. anisopliae strain DES3 has high virulence in a dosage-dependent manner against ALB larvae, indicating the potential of fungal strain DES3 to be developed as biopesticide for biocontrol of A. glabripennis.

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Whole-genome sequence of Metarhizium anisopliae JEF-157 against Asian tiger mosquito larvae ( Aedes albopictus )

Kim,

Lee

2024

Microbiol Resour Announc

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Soil treatment with Beauveria and Metarhizium to control fall armyworm, Spodoptera frugiperda, during the soil-dwelling stage

Cited by 4 publications

References 28 publications

The Combination of Enzymes and Conidia of Entomopathogenic Fungi against Aphis gossypii Nymphs and Spodoptera frugiperda Larvae

The Combination of Enzymes and Conidia of Entomopathogenic Fungi against Aphis gossypii Nymphs and Spodoptera frugiperda Larvae

Virulence and Pathological Characteristics of a New Metarhizium anisopliae Strain against Asian Long-Horn Beetle Anoplophora glabripennis Larvae

Whole-genome sequence of Metarhizium anisopliae JEF-157 against Asian tiger mosquito larvae ( Aedes albopictus )

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