Ravindran Reghu, Chithra Nayikottummal Devadas, Deepa Pattanur Edathil, Ajithkumar Karapparambu Gopalan, Chandrasekhar Leena, Sreelekha Kanapadinchareveetil, Nair Suresh Narayanan, Juliet Sanis, Ghosh Srikanta
Department of Veterinary Parasitology, College of Veterinary and Animal Sciences, Pookode, Wayanad, Kerala, 673 576, India.
Department of Veterinary Anatomy, College of Veterinary and Animal Sciences, Pookode, Wayanad, Kerala, 673 576, India.
Exp Appl Acarol. 2017 Feb;71(2):183-193. doi: 10.1007/s10493-017-0105-2. Epub 2017 Jan 21.
In the present study, the acaricidal effects of caffeic acid, nortriptyline, precocene I and quercetin against Rhipicephalus annulatus (syn. Boophilus annulatus) Say (Acari: Ixodidae) were evaluated. Adult immersion technique (24 ticks immersed for 2 min in one dilution of the compound) was used for the assessment of the effects of caffeic acid (0.39-100 mg/mL), nortriptyline (0.625-50 mg/L), precocene I (0.004488-5 mg/mL) and quercetin (6.25-100 mg/mL) against R. annulatus. Adult tick mortality, reproductive index, inhibition of fecundity and hatching were calculated. Caffeic acid, nortriptyline, precocene I and quercetin revealed very low adult mortality and inhibition of fecundity, even at the highest concentration tested. Quercetin (>50 mg/mL) caused blocking of hatching of eggs.
在本研究中，评估了咖啡酸、去甲替林、早熟素I和槲皮素对环形扇头蜱（同物异名：微小牛蜱）Say（蜱螨亚纲：硬蜱科）的杀螨效果。采用成虫浸泡技术（将24只蜱在一种化合物稀释液中浸泡2分钟）来评估咖啡酸（0.39 - 100毫克/毫升）、去甲替林（0.625 - 50毫克/升）、早熟素I（0.004488 - 5毫克/毫升）和槲皮素（6.25 - 100毫克/毫升）对环形扇头蜱的作用。计算成虫蜱死亡率、生殖指数、产卵抑制率和孵化抑制率。即使在测试的最高浓度下，咖啡酸、去甲替林、早熟素I和槲皮素显示出极低的成虫死亡率和产卵抑制率。槲皮素（>50毫克/毫升）导致卵孵化受阻。
