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- Title
Comparing acaricidal and ovicidal activity of five terpenes from essential oils against Psoroptes cuniculi.
- Authors
Fang, Fang; Li, Meilin; Jiang, Zitao; Lu, Xiaodan; Guillot, Jacques; Si, Hongbin
- Abstract
Essential oils and their components represent an appealing alternative strategy against parasitic mites. The chemical complexity and variability of essential oils limit their use and additional work is required to analyze the efficacy and application rate of essential oils' individual components. In the present study, the activity of five terpenes (terpinen-4-ol, citral, linalool, eugenol, and geraniol) was evaluated against Psoroptes cuniculi motile stages and eggs collected from naturally infected rabbits. Eugenol presented the best acaricidal efficacy with a median lethal concentration (LC50) value of less than 0.1% at 24 h, followed by geraniol (0.33%), linalool (0.38%), citral (0.46%), and terpinen-4-ol (0.66%). Geraniol and eugenol were able to kill all mites within 5 min at 1% concentration. The effective concentration to inhibit 50% (EC50) of egg hatching was 0.65%, 0.66%, 0.85%, 1.47%, and 2.87% for eugenol, geraniol, citral, terpinen-4-ol, and linalool, respectively. In conclusion, eugenol, geraniol, citral, terpinen-4-ol, and linalool should be considered as promising agents for the development of botanical acaricides against Psoroptes cuniculi.
- Subjects
EGG incubation; EUGENOL; LINALOOL; ESSENTIAL oils; ACARICIDES; TERPENES
- Publication
Parasitology Research, 2020, Vol 119, Issue 12, p4219
- ISSN
0932-0113
- Publication type
Article
- DOI
10.1007/s00436-020-06823-z