Essential oil and fractions isolated of Laurel to control adults and larvae of cattle ticks

Abstract

This study, was to evaluate the acaricidal effect of the essential oil (EO) and fractions (FR) obtained from Laurus nobilis leaves on Rhipicephalus (Boophilus) microplus. Eight fractions were obtained, however FR1: sabinene (37.83%), β-pinene (13.50%), 1,8-cineole (12.66%), α-pinene (12.56%) and FR8: α-terpineol (79.19%) were highlighted as to the larvicidal potential when submitted by Larval Packet Test. The EO was tested by the Adult Immersion Test, at concentrations of 200.00; 100.00 and 50.00 µL/mL caused mortality of engorged females, egg mass reduction and hatching inhibition. Two fractions are shown to be efficient in controlling larvae FR8 (LC 50 =0.13 µL/mL, LC 99 =0.51 µL/mL) and FR1 (LC 50 =0.20 µL/mL, LC 99 =0.56 µL/mL). The fractionation of EO was determinant to elucidate which compounds were responsible for the larvicidal potential. This study opens new perspectives to direct new bioassays with the compounds obtained in the fractionation, since they present high potential on the cattle tick larvae.

Antioxidant, angiotensin converting enzyme inhibitory and anthelmintic activities of bark essential oil of Cinnamomum bejolghota (Buch.-Ham.) Sweet from North East India

“…The compound showed a parasite recovery rate of 43.18 %. In another study by Fernandez et al, Terpinen-4-ol,1, 8-cineole and linalool were found to present larvicidal activity against R. microplus larvae [48].…”

Plant-Derived Natural Compounds for Tick Pest Control in Livestock and Wildlife: Pragmatism or Utopia?

“…Treatment with essential oils from some plants can affect tick mortality, fecundity, and egg hatching rate [ 122 ]. Recent studies examined the potential use of essential oils of Laurus nobilis (laurel) [ 162 ], Ocotea odorifera (canela sassafras) [ 163 ], Chrysopogon zizanioides [ 164 ], and Schinus molle [ 165 ] with levels of control between 7.59% to 99%, depending on the concentration of essential oil, tick life stage, and species. The combination of essential oils appears to enhance the effect of individual oils [ 166 , 167 ].…”

The Assessment of the Anthelmintic Activity of Laurus nobilis Extract in Mice Naturally Infected with Aspiculuris tetraptera

“…The fact that Laurus nobilis plant displays biological activity sets it apart the most from plant others (Begum et al, 2013). It is associated with its extract and essential oils as an antifungal agent (Caputo et al, 2017), an antiviral agent, an antibacterial agent (Simić et al, 2004), an acaricidal agent (Sırıken et al, 2018) and an insecticidal agent (Fernandez et al, 2020). Knowledge of the disposal methods for helminths infected by plant extracts in laboratory animals is essential because parasites may act as variables affecting experimental outcomes.…”