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Eclosion blocking effect of ethanolic extract of Leucas aspera (Lamiaceae) on Rhipicephalus (Boophilus) annulatus

Author:
Ravindran, Reghu, Juliet, Sanis, Sunil, A.R., Ajith Kumar, K.G., Nair, Suresh N., Amithamol, K.K., Shynu, M., Rawat, Ajay Kumar Singh, Ghosh, Srikanta
Source:
Veterinary parasitology 2011 v.179 no.1-3 pp. 287-290
ISSN:
0304-4017
Subject:
Boophilus, Leucas aspera, Rhipicephalus, acaricidal properties, aerial parts, eclosion, eggs, fecundity, mortality, ova, ticks
Abstract:
The crude ethanolic extract of aerial parts of Leucas aspera was tested for its acaricidal properties against Rhipicephalus (Boophilus) annulatus. The per cent adult mortality, inhibition of fecundity and hatching of laid ova were studied at concentrations of 1.56, 3.13, 6.25, 12.5, 25, 50 and 100mg/ml. Adult tick mortality was significant at the highest concentration tested. Inhibition of fecundity of treated groups differed significantly from control and was concentration dependent. L. aspera extract also produced complete failure of eclosion of eggs from the treated ticks even at lower dilutions of the extract.
Agid:
559625