Role of antioxidant activity of essential oils in their acaricidal activities against Rhipicephalus annulatus

Aboelhadid, Shawky M.; Abdel‐Baki, Abdel‐Azeem S.; Hassan, Khaled; Arafa, Waleed M.; Abdel-Tawab, Heba; Al‐Quraishy, Saleh; Hassan, Ahmed O.; Moawad, Usama Kamal; Ahmed, Osama M.; Kamel, Asmaa A.

doi:10.1007/s10493-022-00742-7

Cited by 2 publications

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“…In addition, carvacrol and CLI suppressed the activity of AchE in the treated ticks. These findings were supported by Aboelhadid et al [ 75 ], who observed that carvacrol antioxidant activity plays a significant role in its acaricide activity. Cardoso et al [ 76 ] also found that carvacrol inhibited the AChE of both the susceptible and resistant strains of R. microplus .…”

Section: Discussionsupporting

confidence: 69%

Synthesis of Carvacrol-Loaded Invasomes Nanoparticles Improved Acaricide Efficacy, Cuticle Invasion and Inhibition of Acetylcholinestrase against Hard Ticks

et al. 2023

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Carvacrol is a monoterpenoid phenol found in many essential oils that has antibacterial, antifungal and antiparasitic activities. Drug loaded-invasome systems are used to deliver drugs utilizing nanoparticles to improve bioavailability, efficacy, and drug release duration. As a result, the present study developed carvacrol-loaded invasomes and evaluated their acaricidal effect against Rhipicephalus annulatus (cattle tick) and Rhipicephalus sanguineus (dog tick). Carvacrol loaded-invasome (CLI) was prepared and characterized using UV/Vis spectrophotometer, zeta potential measurements, Scanning Transmission Electron Microscopy (STEM), Fourier Transform Infrared (FT-IR) Spectroscopy, and Differential Scanning Calorimetry Analysis. CLI (5%) induced significant mortality (100%) in R. annulatus adult ticks with LC50 of 2.60%, whereas the LC50 of pure carvacrol was 4.30%. Carvacrol and CLI were shown to have a significant larvicidal action on both tick species, with LC50s of 0.24 and 0.21% against R. annulatus and 0.27 and 0.23% against R. sanguineus, respectively. Carvacrol and CLI (5%) induced significant repellent activities for 24 h against R. annulatus and R. sanguineus, as evidenced by the rod method and the petri-dish selective area choice method, respectively. High-performance liquid chromatography (HPLC) demonstrated that the CLI form had 3.86 times the permeability of pure carvacrol. Moreover, carvacrol and CLI inhibited acetylcholinesterase activity and decreased glutathione and malonedealdehyde levels in the treated ticks. In conclusion, invasomes significantly improved adulticidal and repellency activities of carvacrol against both tick species.

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Section: Discussionsupporting

confidence: 69%

Synthesis of Carvacrol-Loaded Invasomes Nanoparticles Improved Acaricide Efficacy, Cuticle Invasion and Inhibition of Acetylcholinestrase against Hard Ticks

et al. 2023

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“…The obtained result of methomyl are consistent with those obtained by several authors, who applied this pesticide against terrestrial gastropod pests; Rabelo et al (2022) reported that during the field experiment, methomyl treatment reduced the populations of Bulimulus bonariensis snail in row crops more than the control. The field application of methomyl using a sprayer on lettuce plants gave 74% reduction in M. cartusiana population (Ahmed et al, 2023) and its application on citrus nursery trees achieved 80.5% reduction in E. vermiculata population (Mobarak et al, 2022). Additionally, Ismail et al, (2022) tested the efficacy of methomyl compound as virulent baits at four concentrations (0.5, 1.0, 2.0 and 3.0 %), with four different treatments (fresh baits and baits treat after one, three, and seven days) on orchard trees and ornamental plants under field conditions.…”

Section: Discussionmentioning

confidence: 99%

Efficiency Evaluation of Two Chemical Pesticides and a Biocide for Controlling Eobania vermiculata Snails Infesting Guava Orchards

Eshra,

Abdelgalil,

Gad

2024

Alexandria Journal of Agricultural Sciences

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In recent years, guava cultivation has gained great commercial prominence due to the increasing international demand for its fresh and processed products. The guava trees are subject to affect by many pests, one of which is land snails. The land snail, Eobania vermiculata, is one of the most serious pests in Egypt's agricultural fields and recently reclaimed areas, causing significant damage to plants. Chemical control is considered the best defense against land snails. Therefore, in the present study, the efficiency of two chemical compounds; Agrinate ® (methomyl) and Gastrotox ® (metaldehyde) as well as a biocide Biogard ® (Bt), at a recommended field rates for controlling the land snail E. vermiculata was tested under field conditions in guava orchard at Alexandria Governorate. The obtained results revealed that all tested compounds exerted significant reduction in the number of living snails on guava trees one day after treatment and until the end of the experiment compared to untreated tress. According to reduction percentages, the three tested compounds were found to be toxic to E. vermiculata with various degrees; 79.39, 69.12 and 86.57% for methomyl, Bt and metaldehyde after 21 days of experiment, respectively. Also the average initial kill (%) were 28.67, 16.39 and 41.66 and average residual effect (%) were 67.98, 59.55 and 78.81 for methomyl, Bt and metaldehyde, respectively. In the comparison among the tested compounds, metaldehyde ranked first and showed the highest effectiveness against E. vermiculata infecting Egyptian guava, followed by methomyl and Bt.

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Role of antioxidant activity of essential oils in their acaricidal activities against Rhipicephalus annulatus

Cited by 2 publications

References 96 publications

Synthesis of Carvacrol-Loaded Invasomes Nanoparticles Improved Acaricide Efficacy, Cuticle Invasion and Inhibition of Acetylcholinestrase against Hard Ticks

Synthesis of Carvacrol-Loaded Invasomes Nanoparticles Improved Acaricide Efficacy, Cuticle Invasion and Inhibition of Acetylcholinestrase against Hard Ticks

Efficiency Evaluation of Two Chemical Pesticides and a Biocide for Controlling Eobania vermiculata Snails Infesting Guava Orchards

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