Toxic potentiality of<i>Adhatoda vasica</i>root extracts against<i>Hyalomma anatolicum</i>(Acari: Ixodidae)

Kishore, Vijay; Srivastava, C.N.; Kumar, Ashok; Mohan, Lalit

doi:10.5958/0974-4576.2016.00028.1

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“…Kishore et al (2015) observed the effect of Adhatoda vasica roots against Rhipicephalus microplus engorged females and noted that petroleum ether extract strongly exhibits adulticidal activity (LC 50 271.49 ppm and LC 90 1148 ppm) and inhibition of reproduction was 97.30% at 600 ppm. Kishore et al (2016) studied the adulticidal activity of Adhatoda vasica (roots) against multi-host tick, Hyalomma anatolicum and hexane extract was observed the most effective, showed 100% mortality at 2400 ppm and egg laying inhibition was 99.67% after 15 days of exposure. Dantas et al (2016) studied acaricidal activites of crude ethanolic extract fractions of Amburana cearensis leaves on the cattle tick, R. microplus and reported among all fractions; hexane (2.5%) achieved the significant results in all parameters analyzed including 52.7% of inhibition of oviposition, 39% of hatching rate and 3271% index of reproductive efficiency.…”

Section: Discussionmentioning

confidence: 99%

Toxicity evaluation and chemical composition of Capsicum frutescens for natural control of Asian blue tick, Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)

Kishore

Loach

Srivastava

et al. 2021

JoBAZ

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Background Indiscriminate use of synthetic acaricides in the management of veterinary parasites has led to environmental pollution, acaricidal resistance and their residues in the animal products. These problems are directly demanded an alternative acaricidal source for the ticks control and that should be cost-effective, eco-friendly and target specific. The current study demonstrated the acaricidal effects of Capsicum frutescens (fruits) against the cattle tick Rhipicephalus (Boophilus) microplus. In adult immersion test, the effects of the treatment on engorged females were assessed by measuring egg mass production, estimated reproductive factor, and % inhibition of reproduction. Results Methanol extract was observed the most effective against adults with LC50 617.54 ppm and LC90 1040.41 ppm. The other target extracts (petroleum ether and hexane) were less effective to the engorged females of R. microplus. Chemical analysis of the potent extract was elucidated by Gas Chromatography–Mass Spectrometry analysis and Cis-13-octadecenoic acid was observed as main compound (43.54%). The simultaneous evaluation of the qualitative chemical screening of the methanol extract showed the presence of tannins, saponins, carbohydrates, steroids, terpenoids, flavonoids, and alkaloids. Conclusion The study concludes that the methanol extract of C. frutescens fruits revealed the significant acaricidal properties and may be used as safe alternative for tick management.

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Section: Discussionmentioning

confidence: 99%