title: Efficacy of flumethrin and coumaphos against the camel tick Hyalomma dromedarii L. (Acari: Ixodidae).
abstract: The efficacy of Flumethrin pour on and Coumaphos 50% WP was tested against different stages of Hyalomma dromedarii. With contact method, LC50 values for larvae and adults were 0.04, 0.03 ug/cm2 and 0.05, 1.06 ug/cm2 respectively. The LC50 for coumaphos against the larvae, adults and eggs using dipping method were 44, 63, and 62 ppm respectively. Flumethrin caused significant reduction in oviposition and hatchability in female ticks that survived sublethal concentrations, while sublethal doses of coumaphos had no effect on the reproductive potential of the tick. The results showed that flumethrin was 8 times more toxic than coumaphos.
authors.affiliation: Department of Plant Protection, College of Agriculture, King Saud University, Riyadh, Saudi Arabia.
authors.forename: A M
authors.initials: AM
authors.lastname: Alahmed
authors.forename: H I
authors.initials: HI
authors.lastname: Hussein
authors.forename: S M
authors.initials: SM
authors.lastname: Kheir
authors.forename: D
authors.initials: D
authors.lastname: Al-Rajhy
mesh_terms: D000818:Animals; D002162:Camelus / Q000469:parasitology*; D003372:Coumaphos / Q000627:therapeutic use*; D005260:Female; D007306:Insecticides / Q000627:therapeutic use*; D026863:Ixodidae / Q000254:growth & development / Q000502:physiology; D007928:Lethal Dose 50; D008297:Male; D010058:Oviposition / Q000187:drug effects; D011722:Pyrethrins / Q000627:therapeutic use*; D011817:Rabbits; D013984:Tick Infestations / Q000188:drug therapy*; D016896:Treatment Outcome
chemical_list: D007306:Insecticides; D011722:Pyrethrins; C041392:flumethrin; D003372:Coumaphos