Field Efficacy of Metarhizium rileyi Applications Against Spodoptera frugiperda  (Lepidoptera: Noctuidae) in Maize

Barros, Suellen Karina Albertoni; Almeida, Euziclei Gonzaga de; Ferreira, Fátima Teresinha Rampelotti; Barreto, Marliton Rocha; Lopes, Rogério Biaggioni; Pitta, Rafael Major

doi:10.1007/s13744-021-00903-0

Cited by 9 publications

(4 citation statements)

References 58 publications

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“…Metarhizium rileyi and SfMNPV were reported safe for Orius spp. (Vasileiadis et al 2017) and other predators (Gómez et al 2013;Barros et al 2021) in maize. Araneae populations could be disturbed by broad-spectrum insecticides (e.g., pyrethroids, organophosphates, carbamates, fipronil and imidacloprid), but less so by anthranilic diamides (Larson et al 2011;Sudhanan et al 2017;Whalen et al 2016;Yang et al 2014).…”

Section: Non-target Effects Of Insecticide Use Towardmentioning

confidence: 99%

Invasiveness, biology, ecology, and management of the fall armyworm, Spodoptera frugiperda

Kenis¹,

Benelli²,

Biondi³

et al. 2023

entomologia

140

119

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The fall armyworm (FAW), Spodoptera frugiperda (JE Smith, 1797), is a serious pest of several crops, particularly maize and other cereals. It has long been known as a pest in the Americas and has invaded most of Africa and parts of the Middle East, Asia, and Australia in the last six years. Its new status as an invasive species causing serious damage in many regions worldwide has highlighted the need for better understanding and has generated much research. In this article, we provide a comprehensive review of FAW covering its (i) taxonomy, biology, ecology, genomics, and microbiome, (ii) worldwide status and geographic spread, (iii) potential for geographic expansion and quarantine measures in place, and (iv) management including monitoring, sampling, forecasting, biological control, biopesticides, agroecological strategies, chemical control, insecticide resistance, effects of insecticides on natural enemies, as well as conventional and transgenic resistant cultivars. We conclude with recommendations for research to enhance the sustainable management of FAW in invaded regions.

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Section: Non-target Effects Of Insecticide Use Towardmentioning

confidence: 99%

Invasiveness, biology, ecology, and management of the fall armyworm, Spodoptera frugiperda

Kenis¹,

Benelli²,

Biondi³

et al. 2023

entomologia

140

119

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“…The genetic diversity of entomopathogenic fungi is closely related to their hosts and habitat, but the relationship between them remains enigmatic [ 44 ]. In eastern China’s Anhui Province, investigations of M. rileyi revealed a lack of significant host specificity among the strains that were isolated from various hosts in the same region [ 18 ]. Notably, four ISSR markers were sufficient to detect significant genetic diversity in the Argentine isolate, independent of either geographical origin or host [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

“…As of 30 September 2019, S. frugiperda was reported in over 70 nations in the tropical and subtropical regions of the world [ 17 ]. However, the accumulation of pesticide residues and the risks associated with pest resistance cannot be avoided [ 18 ]. There is, therefore, an urgent need to develop and introduce a biological control agent.…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity and Virulence Variation of Metarhizium rileyi from Infected Spodoptera frugiperda in Corn Fields

Peng,

Yao,

Pang

et al. 2024

Microorganisms

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Metarhizium rileyi is an entomopathogenic fungus that naturally infects the larvae of Spodoptera frugiperda, and has biocontrol potential. To explore more natural entomopathogenic fungi resources, a total of 31 strains were isolated from 13 prefectures in Yunnan Province. All the strains were identified using morphology and molecular biology. The genetic diversity of the 31 isolates of M. rileyi was analyzed using inter-simple sequence repeat (ISSR) techniques. Seven primers with good polymorphism were selected, and fifty-four distinct amplification sites were obtained by polymerase chain reaction amplification. Among them, 50 were polymorphic sites, and the percentage of polymorphic sites was 94.44%. The thirty-one strains were divided into eight subpopulations according to the regions. The Nei’s gene diversity was 0.2945, and the Shannon information index was 0.4574, indicating that M. rileyi had rich genetic diversity. The average total genetic diversity of the subpopulations in the different regions was 0.2962, the gene diversity within the populations was 0.1931, the genetic differentiation coefficient was 0.3482 (>0.25), and the gene flow was 0.9360 (<1). The individual cluster analysis showed that there was no obvious correlation between the genetic diversity of the strains and their geographical origin, which also indicated that the virulence of the strains was not related to their phylogeny. Thus, the genetic distance of the different populations of M. rileyi in Yunnan Province was not related to the geographical distance. The virulence of those 32 strains against the 3rd-instar larvae of S. frugiperda were varied with the differences in geographical locations. On the 10th day of inoculation, seventeen strains had an insect mortality rate of 70.0%, and seven strains had an insect mortality rate of 100%. The half-lethal times of the M. rileyi SZCY201010, XSBN200920, and MDXZ200803 strains against the S. frugiperda larvae were less than 4 d. Thus, they have the potential to be developed into fungal insecticidal agents.

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“…Além disso, a aplicação inoculativa seria mais viável do que a inundativa no caso de microesleródios, pois demanda concentrações menores de inóculo aplicado. Por outro lado, estudos sobre a utilização de M. rileyi no campo são poucos, e ainda assim, grande parte destes trabalhos já apontaram que mesmo a aplicação de altas concentrações de conídios aéreos de M. rileyi sobre o milho não obtiveram altas taxas de mortalidade de S. frugiperda, principalmente devido a seu hábito alimentar dentro do cartucho, o que mantém a lagarta protegida (IGNOFFO; GARCIA, 1985;BARROS et al, 2021;FARIA et al, 2021).…”

Section: Discussionunclassified

Utilização de microescleródios do fungo >i<Metarhizium rileyi>/i< (Hypocreales: Clavicipitaceae) para controle de >i<Spodoptera frugiperda>/i< (SMITH, 1797) (Lepidoptera: Noctuidae)

Fetter

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Utilização de microescleródios do fungo Metarhizium rileyi (Hypocreales: Clavicipitaceae) para controle de Spodoptera frugiperda (SMITH, 1797) (Lepidoptera: Noctuidae) / Isabela Fetter --versão revisada de acordo com a Resolução CoPGr 6018 de 2011. --Piracicaba, 2024. p.Dissertação (Mestrado) --USP / Escola Superior de Agricultura "Luiz de Queiroz".1. Fermentação líquida submersa 2. Fungo entomopatogênico 3. Lagarta-docartucho-do-milho 4. Controle biológico I. Título

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Field Efficacy of Metarhizium rileyi Applications Against Spodoptera frugiperda (Lepidoptera: Noctuidae) in Maize

Cited by 9 publications

References 58 publications

Invasiveness, biology, ecology, and management of the fall armyworm, Spodoptera frugiperda

Invasiveness, biology, ecology, and management of the fall armyworm, Spodoptera frugiperda

Genetic Diversity and Virulence Variation of Metarhizium rileyi from Infected Spodoptera frugiperda in Corn Fields

Utilização de microescleródios do fungo >i<Metarhizium rileyi>/i< (Hypocreales: Clavicipitaceae) para controle de >i<Spodoptera frugiperda>/i< (SMITH, 1797) (Lepidoptera: Noctuidae)

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