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Ticks |
American Dog Tick
The American dog tick, Dermacentor variabilis, is widely distributed east of the Rocky Mountains and also occurs on the Pacific Coast. The dog is the preferred host of the adult D. variabilis, although it readily feeds on many large mammals including man. The males and females have pale whitish or yellowish markings on the scutum or dorsal shield. Males may be only 1/8 inch long, while engorged females may be as much as 1/4 inch in length. This tick species is known to transmit Rocky Mountain spotted fever and tularemia. While they may be found throughout the year, adults are most active during late April through May. American dog ticks prefer overgrown vacant lots, waste farm fields, weedy roadsides, and edges of paths and hiking trails. They wait on grass and weeds for a suitable host to brush against the vegetation. Once on the host, they crawl upward, seeking a place to attach and take a blood-meal. Habitat modification is considered to be the most permanent approach to tick management. They are most commonly found in grassy, brushy, wooded, and shaded areas. Therefore, by keeping grass well-clipped, removing brush, and pruning trees to allow more sunlight to penetrate to the soil surface will discourage ticks from becoming established in these areas. In addition, it eliminates suitable habitat for the immature (larval and nymphal) tick hosts, which includes small rodents and other wildlife. Second, limit access of dogs and children to "tick" habitats. Dog control is important to reduce tick infestations. Dogs should be de-ticked daily by an adult. If necessary, get your pet treated. A number of products are available, and should be used under the direction of a veterinarian.
For additional control on the exterior, use a granular product such as
Talstar.
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