Animal Science and Veterinary Medicine Department, Agriculture and Aquaculture Faculty, Tra Vinh University, Tra Vinh City, Vietnam.
J Vet Med Sci. 2024 Dec 1;86(12):1237-1242. doi: 10.1292/jvms.24-0288. Epub 2024 Oct 8.
The study evaluated the larvicidal and reproductive effects of essential oils from Ocimum basilicum, Perilla frutescens, and Mentha spicata on engorged female Rhipicephalus sanguineus ticks. Adult immersion and larval packet assays were used to evaluate their larvicidal efficacy and impact on tick reproductive abilities. For tick larvae, Perilla frutescens essential oil had the highest 50% lethal dose of 1.89 mg/mL, followed by Ocimum basilicum at 1.58 mg/mL, and Mentha spicata at 1.07 mg/mL. Regarding adult ticks, although Mentha spicata essential oil had the lowest reduced oviposition value, it showed the highest product efficacy. Overall, all tested essential oils effectively killed tick larvae and influenced the reproductive capacity of engorged female ticks, with Mentha spicata essential oil being the most potent.
本研究评估了罗勒、紫苏和薄荷精油对饱血雌性血红扇头蜱的杀幼虫和生殖影响。采用成虫浸浴和幼虫药包法评估其杀幼虫效果及其对蜱生殖能力的影响。对于蜱幼虫,紫苏精油的半数致死剂量最高,为 1.89mg/mL,罗勒精油为 1.58mg/mL,薄荷精油为 1.07mg/mL。对于成虫蜱,虽然薄荷精油的产卵减少值最低,但表现出最高的产品功效。总体而言,所有测试的精油都能有效杀死蜱幼虫并影响饱血雌性蜱的生殖能力,其中薄荷精油效果最强。