Compatibilidade de isolados de Beauveria bassiana (Ascomycetes: Clavicipitaceae) com carrapaticidas químicos utilizados no controle do carrapato dos bovinos

Barci, L. A. G.; Almeida, José Eduardo Marcondes de; Nogueira, Adriana Hellmeister de Campos; Prado, Angelo Pires do

doi:10.4322/rbpv.018e1012

Cited by 9 publications

(9 citation statements)

References 2 publications

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“…Paz et al (2009) evaluated a product with cypermethrin-5% that is registered to treat ectoparasites in cattle and obtained different results, with the studied acaricide being classified as toxic to the tested B. bassiana isolate. Similar results were found by Barci et al (2009), who assessed acaricides with different active ingredients, including two cypermethrin-based products with 10% and 15% a.i., and reported the products to be toxic to B. bassiana isolate IBCB21.…”

Section: Discussionsupporting

confidence: 68%

Laboratory and Field Evaluation of a Cypermethrin-Based Insecticide for the Control of Alphitobius Diaperinus Panzer (Coleoptera: Tenebrionidae) and Its in-Vitro Effects on Beauveria Bassiana Bals. Vuill. (Hypocreales: Cordycipitaceae)

Oliveira

Cardoso

Mamprim

et al. 2016

Rev. Bras. Cienc. Avic.

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The control of Alphitobius diaperinus is based mainly on chemical insecticides, and the indiscriminate and incorrect use of these products has led to failures in insect control. Thus, it is important to monitor the efficiency of the products available on the market and to develop alternative insect control strategies. The present study evaluated the effect of a new product (cypermethrin-6%) under laboratory and field conditions and assessed its in-vitro compatibility with the fungus Beauveria bassiana (Unioeste 4 isolate). Its efficiency in dry powder and wettable powder formulations was also assessed in the laboratory through comparison with a similar insecticide (cypermethrin-5%) at five different concentrations. The field assays were conducted in two commercial broiler breeder houses (Treated and Control), applying the new product on the litter at the manufacturer's recommended concentration (RC). Germination, vegetative growth, conidial production, number of colony forming units (CFUs) and insecticidal activity of the fungus were used to evaluate the compatibility of the insecticide. The effects of the cypermethrin-6% product and cypermethrin-5% were equivalent in the laboratory, and the new product exhibited better performance at lower concentrations (¼RC, ⅛RC). The strategy applied in the field reduced the insect population in up to 96% after 75 days. Additionally, all concentrations of cypermethrin-6% were compatible with the fungus under the evaluated in-vitro conditions. Therefore, the new product is considered selective for B. bassiana. Further studies are necessary to assess its compatibility under field conditions, consolidating this strategy as a viable alternative for managing this pest.

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Section: Discussionsupporting

confidence: 68%

Laboratory and Field Evaluation of a Cypermethrin-Based Insecticide for the Control of Alphitobius Diaperinus Panzer (Coleoptera: Tenebrionidae) and Its in-Vitro Effects on Beauveria Bassiana Bals. Vuill. (Hypocreales: Cordycipitaceae)

Oliveira

Cardoso

Mamprim

et al. 2016

Rev. Bras. Cienc. Avic.

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“…This incompatibility has been reported by studies which have demonstrated the influence of chemicals on entomopathogenic fungus viability (Barci et al, 2009) although, in another study, the fungus and insecticide employees were considered compatible, allowing their joint use in controlling (Anhalt et al, 2010). Thereby, further studies to evaluate the alterations in nematophagous fungus development caused by the combined use with antiparasitic drugs are needed.…”

Section: Discussionmentioning

confidence: 93%

“…However, some studies have shown that the combined use of incompatible pesticides in integrated pest management may inhibit the development and reproduction of entomopathogenic fungi Alizadeh et al, 2007). In this context, in vitro experiments have been conducted to verify the effect of chemicals on entomopathogenic fungi, demonstrating the influence of these chemicals on fungus viability (Barci et al, 2009). Nevertheless, only Sanyal et al (2004) and Singh et al (2010) reported in vivo tests analyzing the compatibility of nematophagous fungi with regularly used antiparasitic formulations.…”

Section: Introductionmentioning

confidence: 99%

In vitro susceptibility of nematophagous fungi to antiparasitic drugs: interactions and implications for biological control

et al. 2016

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The fast anthelmintic resistance development has shown a limited efficiency in the control of animal's endoparasitosis and has promoted research using alternative control methods. The use of chemicals in animal anthelmintic treatment, in association with nematophagous fungi used for biological control, is a strategy that has proven to be effective in reducing the nematode population density in farm animals. This study aims to verify the in vitro susceptibility of the nematophagous fungi Arthrobotrys oligospora, Duddingtonia flagrans and Paecilomyces lilacinus against the antiparasitic drugs albendazole, thiabendazole, ivermectin, levamisole and closantel by using the Minimum Inhibitory Concentration (MIC). MICs ranged between 4.0 and 0.031 µg/mL for albendazole, thiabendazole and ivermectin, between 0.937 and 0.117 µg/mL for levamisole, and between 0.625 and 0.034 µg/mL for closantel. The results showed that all antiparasitic drugs had an in vitro inhibitory effect on nematophagous fungi, which could compromise their action as agents of biological control. D. flagrans was the most susceptible species to all drugs.Keywords: nematophagous fungi, benzimidazoles, ivermectin, levamisole, closantel. Suscetibilidade in vitro de fungos nematófagos à antiparasitários: interações e implicações para o controle biológicoResumo O desenvolvimento rápido da resistência anti-helmíntica demonstrou a eficiência limitada no controle de endoparasitoses em animais, e promoveu a investigação em métodos de controles alternativos. O uso de produtos químicos no tratamento anti-helmíntico animal, em associação com fungos nematófagos utilizados para o controlo biológico, é uma estratégia que tem provado ser eficaz na redução da densidade da população de nematódeos em animais agrícolas. Este estudo teve como objetivo verificar a suscetibilidade in vitro dos fungos nematófagos Arthrobotrys oligospora, Duddingtonia flagrans e Paecilomyces lilacinus frente aos antiparasitários albendazol, tiabendazol, ivermectina, levamisol e closantel, usando a concentração inibitória mínima (MIC). Os MICs variaram entre 4,0 e 0,031 μg/mL para albendazol, tiabendazol e ivermectina, entre 0,937 e 0,117 μg/mL para o levamisol, e entre 0,625 e 0,034 μg/mL para closantel. Os resultados mostraram que todos os antiparasitários tiveram um efeito inibidor in vitro sobre os fungos nematófagos, o que poderia comprometer suas atividades como agentes de controle biológico. D. flagrans foi a espécie mais sensível a todas as drogas.Palavras-chave: fungos nematófagos, benzimidazóis, ivermectina, levamisol, closantel.

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“…Agricultural pyrethroid insecticides are evaluated as a function of their positive and negative inhibitory actions on entomopathogenic fungi, and may vary according to product concentration, active ingredient, formulation, and type of adjuvant, as well as to the evaluation technique and fungal strains and species involved (Lecuona & Diaz, 2001;Barci et al, 2009). However, as there are no reports of such studies with poultry, conclusions of such studies are only valid under the conditions of each experiment and should not be generalized.…”

Section: Insecticidesmentioning

confidence: 99%

Effect of Disinfectants and Pesticides Used in Poultry Houses on Beauveria Bassiana (Bals.) Vuill.fungus

Alves

Mamprim

Formentini

et al. 2016

Rev. Bras. Cienc. Avic.

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Compatibilidade de isolados de Beauveria bassiana (Ascomycetes: Clavicipitaceae) com carrapaticidas químicos utilizados no controle do carrapato dos bovinos

Cited by 9 publications

References 2 publications

Laboratory and Field Evaluation of a Cypermethrin-Based Insecticide for the Control of Alphitobius Diaperinus Panzer (Coleoptera: Tenebrionidae) and Its in-Vitro Effects on Beauveria Bassiana Bals. Vuill. (Hypocreales: Cordycipitaceae)

Laboratory and Field Evaluation of a Cypermethrin-Based Insecticide for the Control of Alphitobius Diaperinus Panzer (Coleoptera: Tenebrionidae) and Its in-Vitro Effects on Beauveria Bassiana Bals. Vuill. (Hypocreales: Cordycipitaceae)

In vitro susceptibility of nematophagous fungi to antiparasitic drugs: interactions and implications for biological control

Effect of Disinfectants and Pesticides Used in Poultry Houses on Beauveria Bassiana (Bals.) Vuill.fungus

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