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  • Brown Dog Tick - (Rhipicephalus sanguineus)

    Brown Dog Tick - (Rhipicephalus sanguineus)

    Brown Dog Ticks are parasites that mainly feed off dogs and may make them sick, but this species has not been found to transmit any diseases to humans.

    Staff Writer (8/1/2017): A nuisance to dog kennels, Brown Dog Ticks can live their entire lives indoors, feeding off dogs in confinement and reproducing at will if not controlled by owner/operators. Ticks are able to live up to five months without a feeding in each life stages. A larva (newly hatched), nymph (juvenile) and adult need only one blood meal to continue development or reproduction. At each age, a different host is typical, but in homes, usually the same dog nourishes the tick throughout its life. Their presence can go undetected thanks to their small size and coloring. Females mate will feeding on the dog and drop from the host to lay hundreds to thousands of fertilizes eggs in cracks and crevices (to hide them). The larva have only 6 legs at this point and are as tiny as seeds (sometimes they are called "seed ticks"). After a blood meal, ticks at every age go from flat to fat. The blood in stored inside and their bodies are flexible, allowing them to expand like balloons when they are engorged. This changes their appearance so drastically, people often mistake ticks for different insects.

    With so many potentially viable larvae, it does not take long for an infestation if hosts are available and the temperature is comfortable. A Brown Dog Tick infestation can cripple a business and is why tick guards (like collars or edible chews) are standard protocol at shelters and pet hotels. Brown Dog Ticks can transmit some illnesses to dogs that result in fever, lameness, or anemia. Stopping a tick from feeding in the first place is the best way to eliminate issues form them. There are a variety of tick prevention measures that exist to kill a tick before getting a blood meal. Checking dogs after they spend time outside can also help in heading off any problems with ticks. Feeling along the back, ears, neck and legs of the dog for unusual bumps is a good start, but check between the toes, in armpits and in thigh crevices, also. These are warmer areas on the body that tend to attract ticks looking for an bite site.

    Brown Dog Ticks have occasionally been found on deer and rodents, but they truly seem to prefer dogs for some unknown reason. They rarely bite humans and are not known to carry Lyme disease or spread any other diseases to humans. Their presence on a dog may cause it discomfort, especially if there are many of them on the dog, and removing ticks can be done by a veterinarian, who can then monitor the dog for any signs of illness. An infestation on a dog may require a stay in the vet clinic or repeated treatments for illness caused by vectors passed into the dog's bloodstream by ticks. An infestation inside a home may require a professional exterminator.

    Ticks cannot fly. They do not have wings. They cannot jump either. Their eight appendages can hook and grab objects that brush past them, ferociously clinging to them. Dog hair, clothing, and even bare skin are all surfaces that they can latch on to. They cannot be shaken off; they must be picked off of a surface. If embedded, tweezers are necessary to remove them to ensure the entire head and mouthparts are pulled out of the flesh. They usually roam on the body surface for a suitable bite site and sometimes they fall off the host before finding one. They have months of patience, however, and will wait for a host on blades of grass, plant leaves or other perches.

    References: University of Florida, Department of Entomology and Nematology, Institute of Food and Agricultural Science, and FDACS by C.C. Lord; Michigan State University Diagnostic Services

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    Details of the:
    Brown Dog Tick

    Category: Mite or Tick
    Common name: Brown Dog Tick
    Scientific Name: Rhipicephalus sanguineus

      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Insecta
         Order: Acari
          Family: Parasitiformes
           Genus: Rhipicephalus
            Species: sanguineus

    Size (Adult, Length): 1mm to 4mm (0.04in to 0.16in)

    Identifying Colors: brow, black

    Additional Descriptors: flat, eight, hooks, plump, speckled, biting, harmful

    North American Reach (Though Not Limited To*): Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Hawaii; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming; Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Nova Scotia; Ontario; Prince Edward Island; Quebec; Saskatchewan; Mexico

    * Keep in mind that an insect's reach is not limited by lines on a map and therefore may appear in areas/regions/states beyond those listed above.

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