Dermacentor variabilis

Ineffective at 3 mg/kg BW against fever ticks (Boophilus annulatus, B. microlopus) and the American dog tick (Dermacentor variabilis). At 5 mg/kg BW, famphur was effective (87-97%) against fever ticks but ineffective against the dog tick. At the highest daily release rate, famphur was 100% effective against fever ticks between days 12 and 41, but remained ineffective against the dog tick... 

Sonenshine DE, Taylor D, Corrigan G (1985) Studies to Evaluate the Effectiveness of Sex Pheromone-Impregnated Formulations for Control of Populations of the American Dog Tick, Dermacentor variabilis (Say) (Acari Ixodidae). Exp Appl Acarol 1 23... 

Rhipicephalus sanguineus. Dermacentor variabilis, D. reticulatus, Ixodes... 

Xu. G.. Fang, Q. Q., Keirans, J. R and Durden, L. A, (2003). Cloning and sequencing of putative acetylcholinesterase cDNAs from the American dog tick, Dermacentor variabilis. and the brown dog tick, Rhipicephaius sanguineus (Acari Ixodidae)../. Med. EntomoL 40, 890-896. 

Sonenshine, D. E., and G. Esch. 1970. Radio-labeling Dermacentor variabilis with strontium-90 and strontium-90 plus carbon-14 mixtures. J. Econ. Entomol. 63(5) 1635-1638. 

Sheele JM, Byers PA, Sonenshine DE. Initial assessment of the ability of ivermectin to loll Ixodes scapularis and Dermacentor variabilis ticks feeding on humatts. Wilderness Environ Med 2013 24 48-52. 

The sex attractant of several tick species have been identified, but only three examples of attempts to apply the attractant have come to our attention. Sonenshine has demonstrated (620) mating disruption by dusting a tick-infested dog with a microencapsulated formulation of the pheromone, 2,6-dichlorophenol the ticks used were the dog tick, Dermacentor variabilis, and the Rocky Mountain wood tick, Dermacentor andersoni. Gladney (621) applied a mixture of pesticide and male extract to a shaved area on the shoulders of cattle and found that the Gulf Coast tick (Amblyoma maculatwn) could be attracted to the spots and killed... 

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