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

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• 作者：Reghu Ravindran^a ; ^{drreghuravi@yahoo.com"" rel=""nofollow} ; Sanis Juliet^b ; A.R. Sunil^a ; K.G. Ajith Kumar^a ; Suresh N. Nair^b ; K.K. Amithamol^a ; M. Shynu^c ; Ajay Kumar Singh Rawat^d ; Srikanta Ghosh^e
• 关键词：Leucas aspera ; Acaricidal activity ; Eclosion ; Rhipicephalus (Boophilus) annulatus
• 刊名：Veterinary Parasitology
• 出版年：2011
• 出版时间：30 June 2011
• 年：2011
• 卷：179
• 期：1-3
• 页码：287-290
• 全文大小：140 K

文摘

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 100 mg/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.