Field efficacy of Metarhizium acridum (Hypocreales: Clavicipitaceae) in the control of Bactrocera dorsalis (Diptera: Tephritidae) in citrus orchards in Senegal

Faye, Papa Djibril; Bal, Amadou Bocar; Ndiaye, Ndeye Meymouna; Diop, Fama; Sangaré, Yaye Konaré; Haddad, Charles R.; Coly, Emile Victor; Dieng, Elhadji Omar; Niassy, Saliou

doi:10.1007/s42690-020-00306-5

Cited by 11 publications

(11 citation statements)

References 36 publications

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Section: Use Of Entomopathogensmentioning

confidence: 76%

“…Metarhizium acridum was shown to be effective in suppressing populations of B. dorsalis by up to 80% in citrus orchards in Senegal (Faye et al 2021). The study also demonstrated the compatibility of the EPF with parapheromones using the auto dissemination technique (Faye et al 2021). The Auto dissemination technique has been widely used in East Africa based on the concept of horizontal transmission between sexes (Dimbi et al 2003(Dimbi et al , 2013Maniania and Ekesi 2016).…”

Section: Use Of Entomopathogensmentioning

confidence: 86%

“…The Auto dissemination technique has been widely used in East Africa based on the concept of horizontal transmission between sexes (Dimbi et al 2003(Dimbi et al , 2013Maniania and Ekesi 2016). Infected fruit flies can donate and infect other individuals several days after infection, showing that inoculum is retained after first exposure, thus this could result in significant fruit fly suppression if auto dissemination devices are used (Dimbi et al 2013;Faye et al 2021). Besides the autodissemination device, soil inoculation under fruit trees (Ekesi et al 2002) is another viable method of applying EPFs formulated as dust, water, or oil formulation.…”

Section: Use Of Entomopathogensmentioning

confidence: 99%

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Important alien and potential native invasive insect pests of key fruit trees in Sub-Saharan Africa: advances in sustainable pre- and post-harvest management approaches

2022

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Fruit production in Sub-Saharan Africa is of paramount importance both socially and economically. Millions of farmers derive livelihoods from mango, avocado, citrus, cashew, and coconut farming, but native and alien invasive species constrain production The region’s capacity to contain invasives is weak due to the absence of national and institutional support systems for early detection, containment, eradication, or management of the pests. Climate change is expected to play a huge role in the influx of more alien invasive species and the shift of ecological requirements of some native species. Though a fair share of pre-and post-management pest management techniques for several insect pests has been developed, adoption and adaptation of the options are limited. Data on economic and social implications are largely lacking, making it challenging to implement informed policy decisions. The existence of the “Strategy for Managing Invasive Species in Africa 2021–2030” promises a paradigm shift in the management of invasives, from reactive thinking to coordinated proactive approaches. The uncoordinated deployment of management measures in the region and the lack of funding, play a negative role in managing the pests effectively. Prospects for enhanced future research are wide, and efforts are currently being channeled to Area-Wide-Integrated Pest Management in a bottom-up approach with stakeholders owning the process. Participatory development of technologies is also taking centre stage, paving the way for increased adoption and adaptation. Postharvest technologies promise to provide the adequate phytosanitary assurance required by countries importing fruit from Sub-Saharan Africa.

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Section: Use Of Entomopathogensmentioning

confidence: 76%

Section: Use Of Entomopathogensmentioning

confidence: 86%

Section: Use Of Entomopathogensmentioning

confidence: 99%

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Important alien and potential native invasive insect pests of key fruit trees in Sub-Saharan Africa: advances in sustainable pre- and post-harvest management approaches

2022

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“…Several recent studies have confirmed the susceptibility of tephritid fruit fly larvae, pupae, and adults to infections by the EPF B. bassiana (e.g., Quesada‐Moraga et al, 2006; Garrido‐Jurado et al, 2011a,b; Marri et al, 2016; Yousef et al, 2017; Shahzad et al, 2019; Ugwu & Nwaokolo, 2020; Wang et al, 2021), Metarhizium spp. (e.g., Ekesi et al, 2011; Yousef et al, 2017; Abdellah et al, 2020; Wang et al, 2021; Faye et al, 2021), and I. fumosorosea (Wang et al, 2021). The levels of suppression (mortality) reported in the literature are in agreement with our results.…”

Section: Discussionmentioning

confidence: 99%

Mortality of the oriental fruit fly, Bactrocera dorsalis, during pupation in insect pest suppressive soils

Menzler‐Hokkanen

Ruhanen

Hokkanen

2022

Entomologia Exp Applicata

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The oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), is an important pest of various crops. Little is known about the role naturally present soil‐entomopathogens play in its mortality. Preimaginal mortality of B. dorsalis during pupation in soil was determined in 3‐dl plastic pots in the laboratory, simulating natural conditions. Eleven treatments included standard potting soil, sterilized sand, no pupation medium, standard soil amended one‐by‐one with beneficial soil organisms [the fungi Beauveria bassiana (Bals.‐Criv.) Vuill., Metarhizium robertsii JF Bisch, SA Rehner & Humber, Isaria fumosorosea Wize, and Glomus spp. (each one dose), and the nematode Steinernema feltiae (Filipjev) (three doses)], and standard soil amended with a consortium of beneficals. Preimaginal mortality varied widely from 32–36% (Glomus spp., untreated soil, and S. feltiae low dose) to 85% (no pupation medium). From all treatments with beneficials, amending standard potting soil with a high dose of S. feltiae caused the highest mortality (80%). A microbial consortium led to much higher mortality (77.5%) than any of its single components alone: S. feltiae medium dose (58%), B. bassiana (56%), and M. robertsii (50%). The two other microbial treatments (I. fumosorosea and Glomus spp.) did not significantly increase mortality compared to untreated soil during pupation. We conclude that mortality during pupation of B. dorsalis under field conditions is likely to be highly important to the population dynamics of the pest. Therefore, management of the soil in agricultural fields, including orchards, to favour microbial antagonists of insects can be a powerful tool in the management of this important pest.

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“…The approach has been effective for other fruit fly species, such as the mango fruit fly Ceratitis cosyra (Walker) (Diptera: Tephritidae), oriental fruit fly Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) [ 26 ], and Mediterranean fruit fly Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) [ 28 ]. In a recent study by Faye et al [ 29 ] on Bactrocera dorsalis , this approach reduced the population of the pest by up to 90%. The pheromone cuelure (4-(p-acetoxyphenyl)-2-butanone) attracts male adults of Z. cucurbitae and can, thus, be used together with entomopathogenic fungi in an attract-and-infect approach.…”

Section: Introductionmentioning

confidence: 99%

The Entomopathogenic Fungi Metarhizium anisopliae and Beauveria bassiana for Management of the Melon Fly Zeugodacus cucurbitae: Pathogenicity, Horizontal Transmission, and Compatability with Cuelure

Onsongo

Mohamed

Akutse

et al. 2022

Insects

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In the laboratory, the pathogenicity of thirteen isolates of Metarhizium anisopliae (Metschnikoff) Sorokin and two isolates of Beauveria bassiana (Balsamo) Vuillemin against the melon fly Zeugodacus cucurbitae (Coquillett) were assessed by exposing adults to 0.3 g of dry conidia (~3 × 109 conidia) of each isolate for 5 min and monitoring mortality for up to 5 days. Compatibility with a male pheromone, cuelure, (4-(p-acetoxyphenyl)-2-butanone), was determined by testing conidial germination and germ tube growth of the most promising isolate, M. anisopliae ICIPE 69, in the presence of cuelure at different temperatures. For horizontal transmission, the flies were separated by sex, separately exposed to M. anisopliae ICIPE 69, and subsequently mixed with non-exposed flies from the other sex. The most pathogenic isolates were M. anisopliae ICIPE 69, 18, and 30, causing mortalities of 94, 87, and 81%, with 5 days post-exposure, respectively. Metarhizium anisopliae ICIPE 69 caused the highest pupal mortality of 74%, with 15 days post-exposure. Horizontal transmission of M. anisopliae ICIPE 69 among male and female Z. cucurbitae was confirmed by 59 and 67% mortality after exposure to infected donor males and females, respectively. Metarhizium anisopliae ICIPE 69 affected the oviposition, but not hatchability, of infected Z. cucurbitae females. Metarhizium anisopliae ICIPE 69 is, therefore, a potential isolate for biopesticide development for Z. cucurbitae management in cucurbit production systems.

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Field efficacy of Metarhizium acridum (Hypocreales: Clavicipitaceae) in the control of Bactrocera dorsalis (Diptera: Tephritidae) in citrus orchards in Senegal

Cited by 11 publications

References 36 publications

Important alien and potential native invasive insect pests of key fruit trees in Sub-Saharan Africa: advances in sustainable pre- and post-harvest management approaches

Important alien and potential native invasive insect pests of key fruit trees in Sub-Saharan Africa: advances in sustainable pre- and post-harvest management approaches

Mortality of the oriental fruit fly, Bactrocera dorsalis, during pupation in insect pest suppressive soils

The Entomopathogenic Fungi Metarhizium anisopliae and Beauveria bassiana for Management of the Melon Fly Zeugodacus cucurbitae: Pathogenicity, Horizontal Transmission, and Compatability with Cuelure

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