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Dermacentor variabilis, also known as the American dog tick or wood tick, is a species of tick that is known to carry bacteria responsible for several diseases in humans, including Rocky Mountain spotted fever and tularemia (Francisella tularensis). It is one of the best-known hard ticks.
Rhipicephalus sanguineus, commonly called the brown dog tick, kennel tick, [1] or pantropical dog tick, [1] is a species of tick found worldwide, but more commonly in warmer climates. This species is unusual among ticks in that its entire lifecycle can be completed indoors. [2]
- Introduction
- Distribution
- Description
- Life Cycle
- Seasonality
- Medical and Veterinary Importance
- Removal
- Management
- Selected References
Dermacentor variabilis (Say), also known as the American dog tick or wood tick, is found predominantly in the United States, east of the Rocky Mountains, and as its name suggests, is most commonly found on dogs as an adult. The tick also occurs in certain areas of Canada, Mexico and the Pacific Northwest of the U.S. (Mcnemee et al. 2003). Dermacent...
The American dog tick is widely distributed in the United States east of a line drawn from Montana to South Texas. It is also found in Canada, east of Saskatchewan, and in California, west of the Cascade and the Sierra Nevada Mountain ranges. This species is most abundant in the eastern United States from Massachusetts south to Florida but is also ...
The 8-legged adult male and female D. variabilisticks are typically brown to reddish-brown in color with gray/silver markings on their scutum (dorsal "shield"). The female will vary in size depending on whether or not it has blood fed. Unfed females are typically 5 mm long and are slightly larger than males, which are about 3.6 mm long. Females can...
Dermacentor variabilisdevelops from the egg stage, to the 6-legged larva, to the 8-legged nymph, and finally to the adult. The cycle requires a blood meal before progression from larva to nymph, from nymph to adult and by the adult for egg production. This cycle also requires three different hosts and requires at least 54 days to complete, but can ...
Adult American dog ticks overwinter in the soil and are most active from around mid-April to early September. Larvae are active from about March through July and nymphs are usually found from June to early September (Goddard 1996). In northern areas, such as Massachusetts and Nova Scotia, adults appear from April to August with a peak in May and Ju...
The American dog tick is the primary vector for the pathogen causing Rocky Mountain spotted fever (RMSF), although it is also known to transmit the causative agent of tularemia and can cause canine tick paralysis. First discovered in the late 19th century in the Rocky Mountain region, RMSF is more commonly reported in eastern U.S. Rickettsia ricket...
Ticks should not be removed by handpicking because infected tick secretions can be transferred from a person's hands to his or her eyes, mucous membranes, mouth, etc. Therefore, forceps should be used when removing a tick (Smith and Whitman 1992). To properly remove a tick, grasp the mouthparts near the attachment site firmly with tweezers. Once th...
The American dog tick occurs primarily in wooded, shrubby and long-grass areas. However, it is possible for residential areas to support populations of this tick. Shrubs, weeds, tall grass, clutter and debris on the property attracts the rodents that are hosts for immature ticks. By maintaining grass short, removing possible rodent harborages, and ...
Burg JG. 2001. Seasonal Activity and spatial distribution of host-seeking adults of the tick Dermacentor variabilis. Medical and Veterinary Entomology 15: 413-421.Campbel A. 1979. Ecology of the American dog tick, Dermacentor variabilisin southwestern Nova Scotia. Recent Advances in Acarology. Rodriguez JG (editor). Volume 2: 135-143.Carroll JF, Nichols JD. 1986. Parasitization of meadow voles, Microtus pennsylvanicus (Ord), by American dog ticks, Dermacentor variabilis(Say), and adult tick movement during high host density. Jo...CDC 2019. Rocky Mountain Spotted Fever (RMSF). https://www.cdc.gov/rmsf/index.html. (30 March 2021)Sep 14, 2023 · The American Dog Tick, also known as Dermacentor variabilis, is an ectoparasite that can cause various health issues in both humans and animals. Understanding the behavior and characteristics of this tick species is essential for protecting yourself and your pets.
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Ticks are external parasites, living by feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. The timing of the origin of ticks is uncertain, though the oldest known tick fossils are from the Cretaceous period, around 100 million years old.
Ticks On Dogs: Problems They Cause And Prevention. It's spring and dog tick season is here. Dr. Heather Stadtherr shows us two different types of dog ticks to watch out for, the problems...
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The Dog Tick, also known as the wood tick, is a species of tick in the Ixodidae family. Other members of the family include the deer tick , lone star tick , Rocky Mountain tick, and more. People best know this species for its spread of Rocky Mountain spotted fever, though it also spreads tularemia.
