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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Potential action of extract of Acmella oleracea (L.) RK Jansen to control Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) ticks

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Author(s):
Anholeto, Luis Adriano ; de Oliveira, Patricia Rosa ; Ferreira Rodrigues, Rodney Alexandre ; Spindola, Caroline dos Santos ; Labruna, Marcelo Bahia ; Pizano, Marcos Aparecido ; de Carvaldo Castro, Karina Neoob ; Camargo-Mathias, Maria Izabel
Total Authors: 8
Document type: Journal article
Source: TICKS AND TICK-BORNE DISEASES; v. 8, n. 1, p. 65-72, 2017.
Web of Science Citations: 6
Abstract

The use of synthetic acaricides is currently the main method to control ticks. However, the indiscriminate use of these chemicals can lead to the selection of resistant individuals and in the accumulation of chemical residues in the environment, contaminating the soil and water streams, consequently affecting the flora, fauna, and the human beings as well. In this sense, the objective of this study was to investigate the acaricidal effect of crude ethanolic extract of Acmella oleracea (L.) R.K. Jansen aerials parts at different concentrations on fed males and semi-engorged females of A. cajennense s.s. An in vitro bioassay (Adult Immersion Test) was carried out to determine the lethal concentration 50 (LC50) of ethanolic extract, calculated by Probit analysis. The results showed that the fed males were sensitive to all the concentrations of A. oleracea ethanolic extract, and mortality rate progressively increased (15-65%) in higher ethanolic extract concentrations. However, semi-engorged females were not sensitive to all the concentrations used here. In the highest concentration (100 mg/mL), a mortality rate of 100% was observed after 72 h of exposure, indicating that the acaricidal effect would probably be dose-dependent. The LC50 values obtained for the fed A. cajennense s.s males and semi-engorged females were 29.4534 mg/mL (limits: 24.4467-41.3847 mg/mL) and LC50= 17.6335 mgimL (limits: 5.2506-23.5335 mg/mL), respectively. (C) 2016 Elsevier GmbH. All rights reserved. (AU)

FAPESP's process: 15/01496-5 - The acaricide action of Jambu (Acmella oleracea): I. Study of the effects on morphophysiology of male and female reproductive systems of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae)
Grantee:Luís Adriano Anholeto
Support Opportunities: Scholarships in Brazil - Doctorate