Laboratory and field evaluation of Metarhizium anisopliae (Deuteromycotina: Hyphomycetes) for the control of Rhipicephalus microplus (Acari: Ixodidae) in the Mexican tropics

Ojeda-Chí, Melina Maribel; Rodríguez-Vivas, Róger Iván; Galindo-Velasco, Edelmira; Lezama-Gutiérrrez, R.

doi:10.1016/j.vetpar.2010.02.022

Cited by 44 publications

(29 citation statements)

References 29 publications

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“…El 100% de mortalidad en las garrapatas fue logrado por el tratamiento con C. bassiana a los 10 días PT, con M. anisopliae se observó a los 11 días PT (Tabla 1). En estudios previos se ha demostrado que los hongos entomopatógenos a concentraciones de 1x108 esporas/ml son altamente efectivos para el control de R. microplus alcanzando mortalidades entre 44 al 100% (Ojeda-Chi et al, 2010;Fernandes et al, 2012;Ren et al, 2012;Sônia et al, 2012;Pulido-Medellín et al, 2015;García-Corredor et al, 2016). Para el caso de OF a los 14 días se logró el 100% de mortalidad, valor equivalente al trabajo realizado por Céspedes et al (2002) donde se alcanzaron mortalidades de 88,3 a 92,8% en garrapatas R. microplus.…”

Section: Resultados Y Discusiónunclassified

“…Debido a los hábitos hematófagos del parasito, su presencia es considerada uno de los principales problemas de salud pública con gran impacto económico en la ganadería bovina del mundo (Rodríguez-Vivas et al, 2010). Ren et al (2012) y Antunes et al (2015) indican que R. microplus es una de las garrapatas de mayor relevancia por ser considerada vector de enfermedades en animales, específicamente transmite babesiosis (Babesia bigemina y Babesia bovis) y anaplasmosis (Anaplasma marginale).…”

Section: Introductionunclassified

“…Ren et al (2012) y Antunes et al (2015) indican que R. microplus es una de las garrapatas de mayor relevancia por ser considerada vector de enfermedades en animales, específicamente transmite babesiosis (Babesia bigemina y Babesia bovis) y anaplasmosis (Anaplasma marginale). Además, se describe cómo a partir de 20-30 garrapatas por animal se producen pérdida de peso, daños en la piel por acción de las picaduras, pérdida de sangre, debilitamiento, estrés, disminución en la producción de leche y menor eficiencia reproductiva del hato (Rodríguez-Vivas et al, 2010;Rodríguez-Vivas et al, 2012).…”

Section: Introductionunclassified

“…Diversos estudios revelan efectividad de C. bassiana como control biológico sobre poblaciones de garrapatas de la familia Ixodidae, ya sea con aplicación de tratamientos basados únicamente en C. bassiana (Ojeda-Chi et al, 2010;Ren et al, 2012), mediante su mezcla con otros productos de origen biológico como M. anisopliae (Kaaya & Hedimbi, 2012), o en combinación con productos de origen químico (Webster et al, 2015). Algunos acaricidas y pesticidas orgánicos tienen un efecto bioacumulativo en tejidos, como el músculo y la glándula mamaria de los animales expuestos a estos.…”

Section: Introductionunclassified

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Eficiencia in vitro de hongos entomopatógenos y productos químicos sobreRhipicephalus microplus

Sepúlveda¹,

Pulido-Medellín²,

Rodríguez-Pacheco³

et al. 2017

vetzo

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RESUMEN:Rhipicephalus microplus es el ectoparásito más importante en bovinos, su presencia reduce la producción, ocasiona pérdida de peso y es vector de enfermedades como anaplasmosis y babesiosis. El control de garrapatas se realiza mediante el uso de ixodicidas favoreciendo el desarrollo de garrapatas resistentes y generando residualidad, lo que sugiere la utilización de sistemas alternativos de control. Con el fin de evaluar la eficiencia in vitro de Cordyceps bassiana (Cepa BbF2011),Metharizium anisopliae (Cepa MAF1309) y productos químicos en la fase adulta deR. microplus se colectaron garrapatas hembras pletóricas de bovinos, se empleó la técnica de inmersión de Drummond utilizando una dilución de 1x10 8 esporasml para los hongos, un organofosforado (OF) al 97%, un piretroide (PS) al 15% y amitraz (AM) al 20,8%. Las garrapatas tratadas con C. bassiana alcanzaron el 100% de mortalidad el día 10 post-tratamiento (PT), seguida de M. anisopliae y OF los cuales llegaron al 100% de mortalidad los días 11 y 14, respectivamente. Los tratamientos con AM, PS y control no alcanzaron el 100% de la mortalidad. El efecto de C. bassiana y M. anisopliae sobre la fase adulta de garrapatas genera nuevas alternativas de control deR. microplus.Palabras clave: control químico, garrapatas, hongos entomopatógenos,Rhipicephalus microplus (Decs). In vitro efficiency of entomopathogenic fungi and chemicals on Rhipicephalus microplusABSTRACT: Rhipicephalus microplus is the most important ectoparasite in cattle and its presence reduces production, causes weight loss and is a vector of diseases such as anaplasmosis and babesiosis. Ticks control is carried out by the use of ixodicides favoring the development of resistant ticks and generating residuality, which suggests the use of alternative control systems. To evaluate the in vitro efficiency of Cordyceps

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Section: Resultados Y Discusiónunclassified

Section: Introductionunclassified

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Eficiencia in vitro de hongos entomopatógenos y productos químicos sobreRhipicephalus microplus

Sepúlveda¹,

Pulido-Medellín²,

Rodríguez-Pacheco³

et al. 2017

vetzo

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“…Metarhizium anisopliae invades R. microplus using a process involving the adhesion of conidia to the cuticle, conidia germination, and subsequent formation of appressoria and penetration through the cuticle, resulting in massive penetration 72 h post-inoculation (Arruda et al 2005). The M. anisopliae Ma34 strain is 100 % effective on eggs, nymphs, and adults of R. microplus when used at 10 8 conidia ml 1 (Ojeda-Chi et al 2010). In Veracruz, Mexico, an evaluation of the efficacy of M. anisopliae for controlling R. microplus on naturally infested cattle was performed (Alonso-Díaz et al 2007b).…”

Section: Effect Of the Entomopathogenic Fungus Metarhizium Anisopliaementioning

confidence: 99%

Controlling the Introduction and Augmentation of Parasites in and on Domesticated Livestock

Alonso-Díaz

Torres-Acosta

Sandoval-Castro

et al. 2013

Issues in Agroecology – Present Status and Future Prospectus

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Parasites are one of the most important threats to domesticated livestock worldwide. For several decades, their control has been based only on therapeutic interventions using chemical products at fixed intervals throughout the year. Results have demonstrated that dependence on these chemical products, as a single form of control, is not economically and ecologically sustainable. The problem has been augmented due to the emergence of endoparasite and ectoparasite populations resistant and multiresistant to the primary families of chemical products used to control them. Yet, these chemicals continue to be overused as the primary method for parasite control. Even more, their toxicity to animals, environmental contamination, and economic cost are of increasing concern. This limited approach to parasite control has environmental consequences with likely negative impacts to human and animal health. For example, most endectocides used to control parasites (endoparasites and ectoparasites) in domesticated animals are eliminated in the milk produced by females. Thus, there is strong concern regarding human consumption of dairy products containing such chemicals. Currently, market demands focus on healthy livestock production with emphases on the high standards in animal health and welfare based on quality production practices. The sustainable production of domesticated livestock needs strong changes, such as considering agroecologically oriented as well as novel approaches for parasite control. Thus, the use of existing drugs should be more strategically implemented and combined with other nonchemical alternatives for ruminant livestock. New strategies for controlling parasites in ruminant livestock should begin with the premise of not eliminating or eradicating parasitic organisms, but instead basing actions on economic thresholds (similar to IPM strategies for agricultural crops). In this review, we discuss the problem and current situation regarding parasites and their control using ranching operation methods. We discuss regions where the problem of chemical resistance is of strong concern and include the ecological and socioeconomic effects of parasite control (or lack therefore). We present information about novel approaches such as improving the nutritional status of the host and biological control methods for integration with domestic livestock in order to decrease the use of and reliance on chemical products.

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Strategies for the control of Rhipicephalus microplus ticks in a world of conventional acaricide and macrocyclic lactone resistance

2017

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Infestations with the cattle tick, Rhipicephalus microplus, constitute the most important ectoparasite problem for cattle production in tropical and subtropical regions worldwide, resulting in major economic losses. The control of R. microplus is mostly based on the use of conventional acaricides and macrocyclic lactones. However, the intensive use of such compounds has resulted in tick populations that exhibit resistance to all major acaricide chemical classes. Consequently, there is a need for the development of alternative approaches, possibly including the use of animal husbandry practices, synergized pesticides, rotation of acaricides, pesticide mixture formulations, manual removal of ticks, selection for host resistance, nutritional management, release of sterile male hybrids, environmental management, plant species that are unfavourable to ticks, pasture management, plant extracts, essential oils and vaccination. Integrated tick management consists of the systematic combination of at least two control technologies aiming to reduce selection pressure in favour of acaricide-resistant individuals, while maintaining adequate levels of animal production. The purpose of this paper is to present a current review on conventional acaricide and macrocyclic lactone resistance for better understanding and control of resistant ticks with particular emphasis on R. microplus on cattle.

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Laboratory and field evaluation of Metarhizium anisopliae (Deuteromycotina: Hyphomycetes) for the control of Rhipicephalus microplus (Acari: Ixodidae) in the Mexican tropics

Cited by 44 publications

References 29 publications

Eficiencia in vitro de hongos entomopatógenos y productos químicos sobreRhipicephalus microplus

Eficiencia in vitro de hongos entomopatógenos y productos químicos sobreRhipicephalus microplus

Controlling the Introduction and Augmentation of Parasites in and on Domesticated Livestock

Strategies for the control of Rhipicephalus microplus ticks in a world of conventional acaricide and macrocyclic lactone resistance

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