title: Identification of potential plant extracts for anti-tick activity against acaricide resistant cattle ticks, Rhipicephalus (Boophilus) microplus (Acari: Ixodidae).
abstract: To develop an eco-friendly tick control method, seven plant extracts were prepared using 50 and 95% ethanol and evaluated for acaricidal activity against cattle tick, Rhipicephalus (Boophilus) microplus. The adult immersion test was adopted for testing different extracts. Based on 72 h screening criterion, 95% ethanolic extracts of Datura metel fruits and Argemone mexicana whole plant were found effective showing more than 50% mortality of treated ticks. The 95% ethanolic extracts of D. metel fruits and A. mexicana whole plant exhibited acaricidal and reproductive inhibitory effects on treated ticks. The LC90 values of D. metel and A. mexicana extracts were determined as 7.13 and 11.3%, respectively. However, although both the extracts were found efficacious against deltamethrin-resistant IVRI-4 and multi-acaricide resistant IVRI-5 lines of R. (B.) microplus, they caused less mortality than treated ticks of the reference IVRI-I line. Phytochemical studies indicated the presence of alkaloids and glucosides in D. metel fruits and alkaloids, terpenoids, flavonoids and phenolics in A. mexicana whole plant extracts. The results indicated that these botanicals may play an important role in reducing the use of chemicals for tick control and possibly to manage resistant tick population in environment friendly manner.
authors.affiliation: Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, 243122, UP, India, sghoshp@yahoo.co.in.
authors.forename: Srikanta
authors.initials: S
authors.lastname: Ghosh
authors.forename: Shashi Shankar
authors.initials: SS
authors.lastname: Tiwari
authors.forename: Bhanu
authors.initials: B
authors.lastname: Kumar
authors.forename: Sharad
authors.initials: S
authors.lastname: Srivastava
authors.forename: Anil Kumar
authors.initials: AK
authors.lastname: Sharma
authors.forename: Sachin
authors.initials: S
authors.lastname: Kumar
authors.forename: A
authors.initials: A
authors.lastname: Bandyopadhyay
authors.forename: Sanis
authors.initials: S
authors.lastname: Julliet
authors.forename: Rajesh
authors.initials: R
authors.lastname: Kumar
authors.forename: A K S
authors.initials: AK
authors.lastname: Rawat
mesh_terms: D056810:Acaricides / Q000494:pharmacology; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000469:parasitology / Q000517:prevention & control; D004351:Drug Resistance; D005260:Female; D019684:Magnoliopsida / Q000737:chemistry*; D010936:Plant Extracts / Q000494:pharmacology*; D048494:Rhipicephalus / Q000187:drug effects*; D013983:Tick Control / Q000379:methods*; D013984:Tick Infestations / Q000469:parasitology / Q000517:prevention & control / Q000662:veterinary
chemical_list: D056810:Acaricides; D010936:Plant Extracts