The acute toxicity of fipronil to two non-target invertebrates associated with mosquito breeding sites in Australia

Stevens, Mark M.; Burdett, Ayesha S.; Mudford, E; Helliwell, Stuart; Doran, Gregory

doi:10.1016/j.actatropica.2010.11.002

Cited by 23 publications

(9 citation statements)

References 29 publications

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“…The increased popularity of biological control agents over synthetic chemicals is because of the non-selective lethal effect of the latter agents (Moser and Obrycki 2009;Kristoff et al 2010;Shah and Iqbal 2010;Eriksson and Wiktelius 2011;Stevens et al 2011) and the rapid development of resistance by insect pests to synthetic insecticides (Ahmad et al 2008). …”

Section: Advantages Of Using Bt Products Over Chemical Agents In Agrimentioning

confidence: 98%

Bacillus thuringiensis Applications in Agriculture

George

Crickmore

2012

Bacillus Thuringiensis Biotechnology

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Bacillus thuringiensis (Bt) and its insecticidal toxins have been used in agronomical pest control for decades. The mechanism of action of Bt toxins on insect pest involves specific molecular interactions which makes Bt a popular choice for pest control. The specificity of action of Bt toxins reduces the concern of adverse effects on non-target species, a concern which remains with chemical insecticides. Different strains of Bt are known to express different classes of toxins which in turn target different insects. Bt and its toxins can be formulated into powder or liquid sprays or expressed in transgenic plants. To maximize the effect of Bt toxins, multiple toxins are often combined when making Bt formulations or expressed in transgenic plants. Though Bt is a very effective biological control agent, there are concerns over the development of resistance by insect species and also the narrow spectrum of activity of individual toxins. To address these concerns, new strains of Bt expressing novel toxins are actively sought and existing toxins are genetically modified for improved activity.

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Section: Advantages Of Using Bt Products Over Chemical Agents In Agrimentioning

confidence: 98%

Bacillus thuringiensis Applications in Agriculture

George

Crickmore

2012

Bacillus Thuringiensis Biotechnology

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“…These, pesticides have also been demonstrated to cause and chronic toxicity to bees [40]. Fipronil, a comparatively new and widely used urban insecticide were found in runoff waters in California and were considered responsible in exerting acute toxicity to arthropods, chironomids, and other aquatic invertebrates even at very low concentrations [41,42]. The use of modern urban insecticides such as imidacloprid, bifenthin, and fipronil also causes toxicological effects to black tiger shrimp (Penaeus monodon) and other crustaceans [43].…”

Section: Pollutionmentioning

confidence: 99%

Urban Ecosystem: An Interaction of Biological and Physical Components

Mollashahi¹,

Szymura²

2022

Biodiversity of Ecosystems

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Urban ecosystems are composed of biological components (plants, animals, microorganisms, and other forms of life) and physical components (soil, water, air, climate, and topography) which interact together. In terms of “Urban Green infrastructure (UGI)”, these components are in a combination of natural and constructed materials of urban space that have an important role in metabolic processes, biodiversity, and ecosystem resiliency underlying valuable ecosystem services. The increase in the world’s population in urban areas is a driving force to threat the environmental resources and public health in cities; thus, the necessity to adopt sustainable practices for communities are crucial for improving and maintaining urban environmental health. This chapter emphasizes the most important issues associated with urban ecosystem, highlighting the recent findings as a guide for future UGI management, which can support city planners, public health officials, and architectural designers to quantify cities more responsive, safer places for people.

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“…Los artrópodos se encuentran entre los taxones más sensibles al fipronil, y las especies relacionadas pueden tener sensibilidades muy variadas a este in-secticida (Stevens y col., 2011), y esto se debe a que el fipronil puede ser más tóxico una vez metabolizado, debido a que el sulfuro de fipronilo y la sulfona de fipronilo son generalmente dos a tres veces más tóxicos que el compuesto original. Asimismo, existe una gama muy amplia en la sensibilidad de los crustáceos al imidacloprid, con valores de CL 50 que varían de 1 a 52 500 µg•L −1 (Smit y col., 2015).…”

Section: Acuacultura Sustentableunclassified

Evaluación del Riesgo Ambiental de los insecticidas Fipronil e Imidacloprid en el Camarón de río (Cryphiops caementarius)

Carpio

Iannacone

2021

lgr

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En la actualidad, el fipronil y el imidacloprid representan aproximadamente un tercio del mercado mundial de insecticidas. En el presente estudio se evaluó el riesgo ambiental (ERA) del fipronil e imidacloprid en las postlarvas del camarón de río (Cryphiops caementarius, Molina 1782). Se realizaron bioensayos de toxicidad de corta duración en base a la CL50 (Concentración letal media) (mortalidad) y CE50 (Concentración efectiva media) (hipoactividad natatoria). Se calculó la PNEC (Concentración prevista sin efecto conocido) y los estándares ambientales disponibles para la PEC (Concentración ambiental esperada) para el fipronil y el imidacloprid para determinar los cocientes de riesgo (CR). El imidacloprid resultó con mayor riesgo para el ambiente acuático que el fipronil para la respuesta letal (mortalidad) y subletal (hipoactividad natatoria). La diferencia del riesgo observada entre ambos insecticidas pudiera deberse a sus diferentes modos de acción. C. caementarius debería ser considerado como una especie sensible al momento de definir un estándar de calidad ambiental para la conservación del ambiente acuático. Por ende, es recomendable continuar elmonitoreo para observar la presencia de estos insecticidas en los ecosistemas dulceacuícolas costeros, y reducir el uso del fipronil y del imidacloprid en los cultivos agrícolas que los emplean.

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The acute toxicity of fipronil to two non-target invertebrates associated with mosquito breeding sites in Australia

Cited by 23 publications

References 29 publications

Bacillus thuringiensis Applications in Agriculture

Bacillus thuringiensis Applications in Agriculture

Urban Ecosystem: An Interaction of Biological and Physical Components

Evaluación del Riesgo Ambiental de los insecticidas Fipronil e Imidacloprid en el Camarón de río (Cryphiops caementarius)

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