Entomopathogenic nematodes associated with essential oil of Lippia sidoides for control of Rhipicephalus microplus (Acari: Ixodidae)
| Autor: | Tatiane Oliveira Souza Senra, Caio Márcio de Oliveira Monteiro, Márcia Cristina de Azevedo Prata, Mário Geraldo de Carvalho, John Furlong, Geovany Amorim Gomes, Vânia Rita Elias Pinheiro Bittencourt, Laryssa Xavier Araújo, Erik Daemon, Fernanda Calmon |
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| Rok vydání: | 2013 |
| Předmět: |
Veterinary medicine
Tick law.invention law parasitic diseases Botany Oils Volatile Rhipicephalus Animals Acari Essential oil Acaricides Ovum General Veterinary biology Tick Control fungi General Medicine biology.organism_classification Lippia sidoides Infectious Diseases Biological Control Agents Homogeneous Insect Science Larva Heterorhabditis bacteriophora Rhipicephalus microplus Parasitology Female Rhabditoidea Lippia Ixodidae |
| Zdroj: | Parasitology research. 113(1) |
| ISSN: | 1432-1955 |
| Popis: | In vitro effect of the association of the entomopathogenic nematodes Heterorhabditis bacteriophora HP88 and Heterorhabditis indica LPP1 with the essential oil of Lippia sidoides on engorged females of Rhipicephalus microplus was assessed. Engorged females with homogeneous weights (p0.05) were divided into six groups of ten ticks each (each female = an experimental unit). In the treated groups, the ticks were exposed to the oil (40 μl/ml=4%) and nematodes (300 entomopathogenic nematodes (EPNs/tick) separately and also to the nematodes together with the oil, while in the control group, the females were immersed in Tween 80 (3%). All the treatments caused a significant reduction in the egg mass weight (p0.05). The hatching percentage of larvae was reduced (p0.05) in the groups treated with H. bacteriophora HP88, H. indica LPP1, and H. bacteriophora HP88 associated with the oil, but in the group treated only with the oil, the hatching of percentage of larvae rate was similar to that of the control group (p0.05). The percentage of control in the group exposed only to the oil was 50.7%, while in the other treated groups, the percentage of control was greater than 95 %, reaching 100 %in the group treated with H. indica LPP1 associated with the oil. The results of the L. sidoides essential oil in the concentrations tested in association with both H. bacteriophora HP88 and H. indica LPP1 indicate that these combinations can be used to control R. microplus. |
| Databáze: | OpenAIRE |
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