Eficácia do óleo de citronela [Cymbopogon nardus (L.) Rendle] no controle de ectoparasitas de bovinos

Agnolin, Carlos Alberto; Olivo, Clair Jorge; Leal, Marta L.R.; Beck, Relja; Meinerz, Gilmar Roberto; Parra, Carla Lieda Cezimbra; Machado, Paulo Roberto; Foletto, Vinícius; Bem, C.; Nicolodi, Paula Rocha Sampaio Junchen

doi:10.1590/s1516-05722010000400012

Cited by 32 publications

(13 citation statements)

References 11 publications

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“…However, other oils have been shown to have effect against this fly. Agnolin () showed the efficiency of citronella oil on H. irritans and presented results similar to those of the present study for in vitro tests, in which treatments with 5.0% oil gave 100.0% mortality. In vivo repellency tests using these oils showed a decrease in the number of flies found on treated animals.…”

Section: Discussionsupporting

confidence: 88%

Insecticidal and repellent effects of tea tree and andiroba oils on flies associated with livestock

Klauck

Pazinato

Stefani

et al. 2014

Medical Vet Entomology

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This study aimed to evaluate the insecticidal and repellent effects of tea tree, Melaleuca alternifolia (Myrtales: Myrtaceae), and andiroba, Carapa guianensis (Sapindales: Meliaceae), essential oils on two species of fly. For in vitro studies, free-living adult flies were captured and reared in the laboratory. To evaluate the insecticidal effects of the oils, adult flies of Haematobia irritans (L.) and Musca domestica L. (both: Diptera: Muscidae) were separated by species in test cages (n = 10 per group), and subsequently tested with oils at concentrations of 1.0% and 5.0% using a negative control to validate the test. Both oils showed insecticidal activity. Tea tree oil at a concentration of 5.0% was able to kill M. domestica with 100.0% efficacy after 12 h of exposure. However, the effectiveness of andiroba oil at a concentration of 5.0% was only 67.0%. The insecticidal efficacy (100.0%) of both oils against H. irritans was observed at both concentrations for up to 4 h. The repellency effects of the oils at concentrations of 5.0% were tested in vivo on Holstein cows naturally infested by H. irritans. Both oils demonstrated repellency at 24 h, when the numbers of flies on cows treated with tea tree and andiroba oil were 61.6% and 57.7%, respectively, lower than the number of flies on control animals. It is possible to conclude that these essential oils have insecticidal and repellent effects against the species of fly used in this study.

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Section: Discussionsupporting

confidence: 88%

Insecticidal and repellent effects of tea tree and andiroba oils on flies associated with livestock

Klauck

Pazinato

Stefani

et al. 2014

Medical Vet Entomology

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“…From a chemical point of view, the acaricidal action of clove essential oil is suggested to be attributable to the presence of eugenol (Oliveira et al ., ; Agnolin et al ., ; Martinez‐Velazquez et al ., ). Comparisons of the activities of eugenol and essential oil solubilized in hydroethanolic solutions identified similar activities in both substances.…”

Section: Discussionmentioning

confidence: 99%

Acaricidal activity of essential oil of Syzygium aromaticum, hydrolate and eugenol formulated or free on larvae and engorged females of Rhipicephalus microplus

Ferreira

Delmonte

Novato

et al. 2017

Medical Vet Entomology

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The cattle tick, Rhipicephalus microplus (Canestrini, 1888) (Ixodida: Ixodidae), is the most important ectoparasite in cattle-breeding areas and is responsible for severe economic losses. Synthetic acaricides have been used to control this parasite. However, the need for safer products has stimulated the search for new acaricides, such as those to be obtained from medicinal plants. The essential oil of Syzygium aromaticum (clove) has many biological properties and shows great potential for use in veterinary applications. In the context of the need for new agents, this study investigated the in vitro properties of the hydrolate, essential oil and the main constituent of S. aromaticum, eugenol, in formulated and free applications against larvae and females of R. microplus. Eugenol and the essential oil caused 100% mortality in larvae at starting applications of 2.5 mg/mL and 5.0 mg/mL, respectively. The hydrolate showed no activity. Both eugenol and essential oil had good efficacy in adult immersion tests at 50 mg/mL and achieved 100% efficacy at a concentration of 100 mg/mL. The results of these tests reaffirm the important potential of clove essential oil and eugenol.

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“…Natural plant extracts can be safer to use than SCA because they tend to degrade quickly in the environment and the reduced risk for chemical residues in beef and milk (Hernandez et al, 1987;Gupta et al, 2000;Borges et al, 2003;Hu and Coats, 2008;Agnolin et al, 2010). A plant identified to have acaricidal properties against the SCFT is Lippia gracilis Schauer (Verbenaceae), which is found in well-drained, semi-arid regions of northeastern Brazil where it is produced on a large scale (Pessoa et al, 2005;Cruz et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Acaricidal efficacies of Lippia gracilis essential oil and its phytochemicals against organophosphate-resistant and susceptible strains of Rhipicephalus (Boophilus) microplus

Costa-Júnior

Miller

Alves

et al. 2016

Veterinary Parasitology

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Plant-derived natural products can serve as an alternative to synthetic compounds for control of ticks of veterinary and medical importance. Lippia gracilis is an aromatic plant that produces essential oil with high content of carvacrol and thymol monoterpenes. These monoterpenes have high acaricidal activity against Rhipicephalus (Boophilus) microplus. However, there are no studies that show efficacy differences of essential oils between susceptible and organophosphate resistant strains of R. (B.) microplus. The aim of the present study was to compare acaricidal effects of essential oils extracted from two different genotypes of L. gracilis and the main monoterpenes on larvae of both susceptible and organophosphate resistant R. (B.) microplus larvae. The efficacy of the essential oil of two genotypes of L. gracilis (106 and 201) and their monoterpenes carvacrol and thymol was measured using the larval immersion test on coumaphos-resistant and susceptible strains of R. (B.) microplus. Lethal concentrations were calculated using GraphPad Prism 6.0. Chemical analysis was performed by GC-MS and FID. Thymol and carvacrol were observed to be major constituents in 106 and 201L. gracilis genotype essential oils, respectively. Essential oils of both genotypes were more effective against organophosphate-resistant tick strain than susceptible tick strain. Carvacrol was 3.2 times more toxic to organophosphate resistant strain than to susceptible strain. Thymol was equally toxic to resistant and susceptible tick strains. The significantly higher efficacy monoterpene carvacrol against resistant ticks may lead to development of new natural product acaricide formulations for use to control organophosphate resistant R. (B.) microplus populations.

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Eficácia do óleo de citronela [Cymbopogon nardus (L.) Rendle] no controle de ectoparasitas de bovinos

Cited by 32 publications

References 11 publications

Insecticidal and repellent effects of tea tree and andiroba oils on flies associated with livestock

Insecticidal and repellent effects of tea tree and andiroba oils on flies associated with livestock

Acaricidal activity of essential oil of Syzygium aromaticum, hydrolate and eugenol formulated or free on larvae and engorged females of Rhipicephalus microplus

Acaricidal efficacies of Lippia gracilis essential oil and its phytochemicals against organophosphate-resistant and susceptible strains of Rhipicephalus (Boophilus) microplus

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