Pathogenicity of the entomopathogenic fungus, Beauveria bassiana (Bals.) Vuill. endophytic and a soil isolate against the squash beetle, Epilachna chrysomelina (F.) (Coleoptera: Coccinellidae)

Hassan, Feyroz Ramadan; Abdullah, Samir K.; Assaf, Lazgeen Haji

doi:10.1186/s41938-019-0169-x

Cited by 9 publications

(8 citation statements)

References 12 publications

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“…We observed a lesser number of adult male moths, and female moths had some apparent alterations in their wings. This result is in agreement with Hassan et al [39], who reported that malformations occurred in B. bassiana-treated squash beetles. Interestingly Russo et al recently reported differences on Spodoptera frugiperda's female fertility, fecundity and longevity using corn plants endophytically-inoculated with B. bassiana by foliar spray treatments; although in contrast, they did not find significant differences in the sex ratio of Helicoverpa gelotopoeon when they were fed on B. bassiana treated soy bean plants [40].…”

Section: Discussionsupporting

confidence: 93%

Effect of Zea Mays-Beauveria Bassiana Seed Treatment on Spodoptera Frugiperda

Kuzhuppillymyal-Prabhakarankutty¹,

Ferrara-Rivero²,

Tamez‐Guerra³

et al. 2021

Preprint

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Spodoptera frugiperda is a widely distributed insect pest that causes major economic losses in various crops, particularly maize. On the other hand, Beauveria bassiana is an entomopathogenic fungus that establishes symbiotic associations with many plants and contributes to tolerance against biotic and abiotic stresses. In the present work, under field conditions, 1x106 (first trial) and 1x10⁸ (second trial) of B. bassiana (GHA strain) blastospores were used for corn’s seed inoculation. In the first field trial, a higher number of larvae were present in the negative control plants in comparison with those in B. bassiana-treated plants. No larvae were found in negative control and B. bassiana-treated plants in the second field trial. In further laboratory experiments, the effects of the B. bassiana strains GHA, in addition to a native strain (PTG4) also delivered via seed treatment in maize seedlings, on S. frugiperda growth, development, and mortality were evaluated. 1x10⁶ B. bassiana blastospores were used to inoculate maize seeds, which were germinated and grown to seedlings under growth chamber conditions. Third-instar S. frugiperda larvae were allowed to feed on B. bassiana-treated and -untreated (negative control) seedlings until reaching 6th instar and transferred to artificial diet until reaching adult stage. Results showed that larvae feeding on B. bassiana strain PTG4 prolonged their larval stage. Furthermore, feeding with plants treated with B. bassiana strains yielded fewer S. frugiperda male moths and the female moths emerged with altered wings, compared with the untreated control. In conclusion, seed treatment with B. bassiana in maize reduced S. frugiperda infestation of maize plants in field trials. Besides S. frugiperda development was affected in laboratory trials.

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Section: Discussionsupporting

confidence: 93%

Effect of Zea Mays-Beauveria Bassiana Seed Treatment on Spodoptera Frugiperda

Kuzhuppillymyal-Prabhakarankutty¹,

Ferrara-Rivero²,

Tamez‐Guerra³

et al. 2021

Preprint

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“…The second highest isolate caused 83.33% mortality after twelve days. Previous studies have recorded mortalities of 100%, which is incredible, but mortalities of 60% and above are good enough in controlling insect populations [52]. Beauveria bassiana has been an entomopathogen in many insect orders, including Lepidoptera, Hemiptera, Coleoptera, and Diptera, among others.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Native Entomopathogenic Fungi for the Control of Fall Armyworm (Spodoptera frugiperda) in Thailand: A Sustainable Way for Eco-Friendly Agriculture

Rajula

Pittarate

Suwannarach

et al. 2021

JoF

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Fall armyworm, Spodoptera frugiperda, entered Thailand in late 2018 and has now spread in several regions, with devastating effects in maize and rice production, which are some of the most important cereals in the world. Since then, farmers have utilized the available chemical insecticides to try to control it, but their efforts have been futile. Instead, they have ended up using extraordinary dosages, hence threatening non-target species and other fauna and flora, as well as being costly. In this regard, research has been ongoing, aiming to come up with eco-friendly solutions for this insect. We surveyed and collected various isolates of native entomopathogenic fungi intending to test their efficacy against fall armyworm. Six isolates of entomopathogenic fungi were obtained and identified to Beauveria bassiana based on morphological characteristics and multi-gene phylogenetic analyses. Thereafter, the six isolates of B. bassiana were used to perform efficacy experiments against fall armyworm. Additionally, the glycosyl transferase-like protein 1 (GAS1) gene was analyzed. Consequently, all the isolates showed efficacy against S. frugiperda, with isolate BCMU6 causing up to 91.67% mortality. Further, molecular analysis revealed that all the isolates possess the GAS1 gene, which contributed to their virulence against the insect. This is the first report of utilizing native entomopathogenic B. bassiana to manage S. frugiperda in Thailand, with the revelation of GAS1 as a factor in inducing virulence and cuticle penetration. This study has provided valuable information on the potential development of Beauveria bassiana as an eco-friendly bioinsecticide for the management of fall armyworm in Thailand.

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“…Collected mites were released in the Petri plate and allowed to multiplication. The cotton pads were moistened daily and the mulberry leaves were changed whenever it is necessary (Hassan et al 2019). After multiplication of the mites, it was transferred to the caged potted bhendi (Bhendi hybrid COBh H 1) plants maintained at Insectary, Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu for further multiplication.…”

Section: Rearing Of Two-spotted Spider Mites T Urticae For Pathogenic...mentioning

confidence: 99%

DNA barcoding reveals the natural occurrence of Beauveria bassiana (Balsamo) Vuillemin in two-spotted spider mite, Tetranychus urticae Koch in Bhendi [Abelmoschus esculentus (L.) Moench] ecosystem in Coimbatore district of Tamil Nadu

Abarna

Vishnupriya

2022

Egypt J Biol Pest Control

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Background Two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae) incidence is a major constraint in vegetable cultivation. The indiscriminate use of acaricides is causing environmental threat and also residual effect in vegetables. To develop an eco-friendly management strategy, an investigation was made to access the natural occurrence of entomopathogenic fungi (EPF) infecting mites in bhendi, India ecosystem. Results Natural incidence of EPF was high during the month of December. Twelve EPF isolates were isolated from the mycosed T. urticae cadavers using Potato Dextrose Agar Medium. Morphological studies confirmed that the isolated fungi were Beauveria bassiana. PCR amplification of ITS region was carried out and the results showed, amplification at 560 bp. In NCBI database, the sequence of the virulent isolates had shown 99.2, 98.7, 99.1, 97.7 and 96.8% homology with other B. bassiana isolates, confirming the occurrence of B. bassiana mycosed mites in vegetable ecosystem. Conclusion The isolate MZ749636 (B.b-7) was found to be virulent against T. urticae causing 86% mortality of T. urticae at the conidial load of 1 × 108 conidia/ml at laboratory conditions and so it could be utilized for the eco-friendly management of T. urticae.

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Pathogenicity of the entomopathogenic fungus, Beauveria bassiana (Bals.) Vuill. endophytic and a soil isolate against the squash beetle, Epilachna chrysomelina (F.) (Coleoptera: Coccinellidae)

Cited by 9 publications

References 12 publications

Effect of Zea Mays-Beauveria Bassiana Seed Treatment on Spodoptera Frugiperda

Effect of Zea Mays-Beauveria Bassiana Seed Treatment on Spodoptera Frugiperda

Evaluation of Native Entomopathogenic Fungi for the Control of Fall Armyworm (Spodoptera frugiperda) in Thailand: A Sustainable Way for Eco-Friendly Agriculture

DNA barcoding reveals the natural occurrence of Beauveria bassiana (Balsamo) Vuillemin in two-spotted spider mite, Tetranychus urticae Koch in Bhendi [Abelmoschus esculentus (L.) Moench] ecosystem in Coimbatore district of Tamil Nadu

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