In Vitro Effect of Volatile Substances from Eucalyptus Oils on Rhipicephalus microplus

Author(s)

Rodrigues, Leandro ^[1] ; Giglioti, Rodrigo ^[1] ; Gomes, Ana Carolina Peroni ^[1] ; Katiki, Luciana Morita ^[1] ; Otsuk, Ivani Pozar ^[1] ; da Silva Matos, Renata ^{[2, 3]} ; Nodari, Elen Fernanda ^[2] ; Verissimo, Cecilia Jose ^[1]

Affiliation

^[1] Inst Zootecnia, Ctr Pesquisa Genet & Reprod Anim, Rua Heitor Penteado 56, BR-13380011 Nova Odessa, SP - Brazil

^[2] Univ Estadual Paulista, Inst Biociencias, Dept Biol, Rio Claro, SP - Brazil

^[3] Univ Fed Juiz de Fora, Dept Comportamento & Biol Anim, Juiz De Fora, MG - Brazil

• Document type: Journal article
• Source: REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY; v. 30, n. 5, p. 737-742, OCT 2020.
• Web of Science Citations: 0

Abstract

Volatile oils have been extensively investigated as an alternative for tick control. This study evaluated thein vitroeffects of volatile compounds emanated byCorymbia citriodora(Hook.) K.D.Hill \& L.A.S.Johnson andEucalyptus globulusLabill., Myrtaceae, volatile oils and their major compounds, citronellal and 1,8-cineole, respectively, at doses of 10, 20, 40, 60, 80 and 100 mg/g, onRhipicephalus micropluslarvae and engorged females. The effects of these volatile oils were compared with those of commercial acaricides. In bioassays with engorged females, percentages of oviposition inhibition (OI %) and efficacy of the product (EP %) were determined, as well as tick larval mortality. The larval tests with citronellal presented high mortalities (> 80%) for all analysed doses, except 10 mg/g, while those for 1,8-cineole at the lowest dose (10 and 20 mg/g) produced the highest mortality (> 85%). In general, the volatile compounds released by these oils resulted in larval mortality and inhibition of the reproductive parameters in the engorged females, with efficacies over 80%. (AU)

• FAPESP's process: 14/02843-8 - Hematophagy in female Rhipicephalus sanguineus L. S. (Acari: Ixodidae) and its relations: biochemical (bioactive gifts in extracts) and morphophysiological (salivary gland and gut)
• Grantee: Elen Fernanda Nodari
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 14/13143-7 - Study morphophysiological salivary gland, singânglio, body of ovarian gene and engorged females of R. sanguineus (Latreille, 1806) (Acari: Ixodidae) treated with different concentrations thymol
• Grantee: Renata da Silva Matos
• Support Opportunities: Scholarships in Brazil - Doctorate