Bioactivity of Meliaceae, Amaryllidaceae, Solanaceae and Amaranthaceae plant aqueous extracts against the cattle tick Rhipicephalus microplus

• Published in: Natural product research Vol. 36; no. 22; pp. 1 - 5782
• Main Authors: Luns, Darcy Adriann Rebonato, Soares, Lucas de Souza, Guedes, Natália Assis, Martins, Isabella Vilhena Freire, Severi, Juliana Aparecida, Costa, Adilson Vidal, Morais, Pedro Alves Bezerra, de Queiroz, Vagner Tebaldi
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis Ltd 17-11-2022
• Subjects: Acaricides; Bioactive compounds; Biological activity; Catechin; Cattle; Dairy cattle; Gallic acid; Hatching; Liquid chromatography; Plant extracts; Rhipicephalus microplus; Phytochemical screening; phenolic compounds; natural acaricide; alkaloids
• ISSN: 1478-6419; 1478-6427
• DOI: 10.1080/14786419.2021.2016744

Commercial synthetic acaricides have selected resistant populations of
, and generate residues in the environment or in milk/cattle products. In this study, aqueous extracts (AE) from
(Maz),
,
,
(Nta) and
were evaluated for the bioactivity against the cattle tick. The treatment using Nta or Maz AE resulted in the lowest egg hatching rate (34.0 ± 11% and 25.0 ± 19%), and in the values of reproduction inhibition ranging from 89.0% to 85.3%. Phytochemical screening associated to RP-HPLC/DAD analysis suggested the presence of alkaloids for Nta and gallic acid derivatives and catechins, for Maz. Such results highlighted that the use of Nta and Maz AE can be a promising source of bioactive compounds for the control of infections caused by the cattle tick.