Temperature-based phenology model to predict the development, survival, and reproduction of the oriental fruit fly Bactrocera dorsalis

Michel, Kouakou Amani; Fiaboe, Komi K. M.; Kekeunou, Sévilor; Nanga, Samuel Nanga; Kuate, Apollin Fotso; Tonnang, Henri E. Z.; Gnanvossou, Désiré; Hanna, Rachid

doi:10.1016/j.jtherbio.2021.102877

Cited by 26 publications

(9 citation statements)

References 41 publications

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“…As control individuals (not contaminated) died faster when temperature increased, the second option is likely to be the most at play. In addition, the optimal temperature of M. anisopliae was found to be between 25 and 32°C with some strains being heat tolerant up to 35°C (Ouedraogo et al 1997), while the optimal temperature of B. dorsalis is between 20 to 30°C (Fiaboe et al 2021, Rwomushana et al 2008). Yet, it is also possible that heat shock might be less detrimental to insect immune response than constant high temperatures (Wojda et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Dose, temperature and formulation shapeMetarhizium anisopliaevirulence against the oriental fruit fly: lessons for improving on-target control strategies

Chailleux,

Coulibaly,

Diouf

et al. 2023

Preprint

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Entomopathogenic fungi are a promising tool for the biological control of crop pests provided low or no impact on non-target organisms. Selection for host specificity as well as on-target applications open new avenues for more sustainable strategies for pest management. Isolates ofMetarhizium anisopliae(Metschn.) Sorokin have been identified as promising for developing innovative entomovection-based strategies for the control of the oriental fruit fly,Bactrocera dorsalis(Hendel) (Diptera: Tephritidae), in Africa. To be effective, this technology requires high strain virulence at a low number of spores, in field conditions, but sufficient incubation time to allow transmission to wild conspecifics.In the present study, we investigated the virulence of the Met69 OD strain against adult flies, depending on the inoculation dose, formulation and air temperature. High pathogenicity was observed at very low inoculation doses (LT50 of 4.85 days with 6100 spores per fly) independently of fly sex. Virulence increased with spore load in a tight range (5600 and 6100 spores per fly) and with air temperature observed in the field (20-28°C). Unexpectedly, corn starch used as an adjuvant to increase the carrying capacity of insects decreased the virulence of the pathogen.Results are of utmost importance to improve area-wide control strategies based on contamination of wild flies in mango orchards through auto-inoculation devices or interactions with released mass-reared sterile males coated with fungal spores.

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Section: Discussionmentioning

confidence: 99%

Dose, temperature and formulation shapeMetarhizium anisopliaevirulence against the oriental fruit fly: lessons for improving on-target control strategies

Chailleux,

Coulibaly,

Diouf

et al. 2023

Preprint

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“…For example, temperatures for optimal immature development ranged around 25-30°C, with development time (or mortality) increasing at lower (or higher) temperatures, preventing from any adult emergence above 35°C (and below 9-10°C) (Dongmo et al, 2021; Rwomushana et al, 2008; Vargas et al, 1996). In addition, adult longevity decreases with increasing temperature, and females can only lay eggs between 15 and 35°C, with the optimal conditions for a higher number of eggs being between 20 and 25°C (Choi et al, 2020; Dongmo et al, 2021; Vargas et al, 1997; Yang et al, 1994). In our study area, the most favourable temperature range for early population development in orchards lies between oceanic conditions in the coastal part and inland conditions where the maximum daily temperature easily exceeds 35°C during the dry season.…”

Section: Discussionmentioning

confidence: 99%

Hierarchizing multi-scale environmental effects on agricultural pest population dynamics: a case study on the annual onset ofBactrocera dorsalispopulation growth in Senegalese orchards

Caumette,

Diatta,

Piry

et al. 2023

Preprint

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Implementing integrated pest management programs to limit agricultural pest damage requires an understanding of the interactions between the environmental variability and population demographic processes. However, identifying key environmental drivers of spatiotemporal pest population dynamics remains challenging as numerous candidate factors can operate at a range of scales, from the field (e.g. agricultural practices) to the regional scale (e.g. weather variability). In such a context, data-driven approaches applied to pre-existing data may allow identifying patterns, correlations, and trends that may not be apparent through more restricted hypothesis-driven studies. The resulting insights can lead to the generation of novel hypotheses and inform future experimental work focusing on a limited and relevant set of environmental predictors. In this study, we developed an ecoinformatics approach to unravel the multi-scale environmental conditions that lead to the early re-infestation of mango orchards by a major pest in Senegal, the oriental fruit flyBactrocera dorsalis(BD). We gathered abundance data from a three-year monitoring conducted in 69 mango orchards as well as environmental data (i.e. orchard management, landscape structure and weather variability) across a range of spatial scales. We then developed a flexible analysis pipeline centred on a recent machine learning algorithm (GPBoost), which allows the combination of gradient boosting and mixed-effects models or Gaussian processes, to hierarchize the effects of multi-scale environmental variables on the timing of annual BD population growth in orchards. We found that physical factors (temperature, humidity), and to some extent landscape features, were the main drivers of the spatio-temporal variability of the onset of population growth in orchards. These results suggest that favourable microclimate conditions could provide refuges for small BD populations that could survive, with little or no reproduction, during the mango off-season and, then, recolonize neighbouring orchards at the beginning of the next mango season. Confirmation of such a hypothesis could help to prioritize surveillance and preventive control actions in refuge areas.

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“…A partir de levantamentos realizados em literatura técnico-científica internacional (BESS, 1953;BESS & HARAMOTO, 1961;STIBICK, 2004;CLARKE et al, 2005;EKESI, DIMBI & MANIANIA, 2007;MARGOSIAN et al, 2007;CHEN, YE & MU, 2007;RWOMUSHANA et al, 2008;RATTANAPUN, AMORNSAK & CLARKE, 2009;FROERER et al, 2010;CHEN et al, 2011CHEN et al, , 2015LIU et al, 2011NBOYINE, BILLAH & AFREH-NUAMAH, 2012;SCHULTZE et al, 2015a,b;NUGNES et al, 2018;SAMAYOA et al, 2018;IICA, 2019;WEEMS et al, 2019;CABI, 2020;MICHEL et al, 2021), informações biológicas e de danos e perdas causadas por B. dorsalis foram obtidas, sendo resumidamente apresentadas a seguir.…”

Section: Principais Informações Biológicas Danos E Perdas Causadas Pe...unclassified

“…Acrescenta-se ainda que indicaram que B. dorsalis pode se adaptar a uma ampla faixa de umidade. Todavia,Rwomushana et al (2008) indicou T= (melhor desenvolvimento ou desenvolvimento ótimo) (MICHEL et al, 2021)…”

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Sustentabilidade ambiental, preservação do meio e conservação dos recursos naturais

Paniagua

2023

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Editora Direitos para esta edição cedidos à Atena Editora pelos autores. Open access publication by Atena Editora Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterála de nenhuma forma ou utilizá-la para fins comerciais.Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético. Conselho Editorial Ciências Agrárias e Multidisciplinar

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Temperature-based phenology model to predict the development, survival, and reproduction of the oriental fruit fly Bactrocera dorsalis

Cited by 26 publications

References 41 publications

Dose, temperature and formulation shapeMetarhizium anisopliaevirulence against the oriental fruit fly: lessons for improving on-target control strategies

Dose, temperature and formulation shapeMetarhizium anisopliaevirulence against the oriental fruit fly: lessons for improving on-target control strategies

Hierarchizing multi-scale environmental effects on agricultural pest population dynamics: a case study on the annual onset ofBactrocera dorsalispopulation growth in Senegalese orchards

Sustentabilidade ambiental, preservação do meio e conservação dos recursos naturais

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