MUHLENBERG COUNTY, KY (5/21/12) – Typically ticks begin to appear in late spring and early summer as warm weather sets in, but this year, cases of the annual pest were reported three to four weeks earlier than normal, said agents with the University of Kentucky Cooperative Extension Service.
“I’ve been receiving calls about ticks for well over a month already from homeowners, farmers and hunters,” said Kenny Perry, Graves County agriculture and natural resources extension agent.
“I’m seeing them earlier than before and expect them to be a problem this year,” said Charles May, Perry County agriculture and natural resources extension agent.
The early appearance of ticks is likely due to the weather earlier this year.
“Winter survival was probably higher due to the mild winter, and the tick season started earlier because of the warm spring,” said Lee Townsend, extension entomologist with the UK College of Agriculture.
Townsend said the two most common ticks in Kentucky are the lone star tick and the American dog tick. The adult female lone star tick has a white spot on its back. The male is entirely reddish-brown. The American dog tick is reddish brown with mottled white markings on its back. Both tick species are most active during April through September throughout much of Kentucky. All developmental stages of the lone star tick feed on humans, but only the adult stage of the America dog tick does.
Neither tick carries Lyme disease. Infected American dog ticks can transmit Rocky Mountain spotted fever. Fortunately, the incidence of disease is very low in this state. Researchers are studying a possible link between the lone star tick and Southern Tick Associated Rash Illness (STARI) and human ehrlichiosis. Individuals who experience flu-like symptoms within two weeks of a bite or exposure to a tick should see a doctor and report any exposure to ticks.
Like Perry and May, Richard Whitis, Pulaski County agriculture and natural resources extension agent, received some very early questions about ticks and tick identification. They were due to the blacklegged tick, a species only occasionally found in Eastern Kentucky before this past winter. Unlike the other two ticks, adult blacklegged ticks are most active in November through April. The blacklegged tick is most commonly found in the Northeast and north central states.
Blacklegged ticks look very different than American dog ticks and lone star ticks. Blacklegged ticks have a reddish-brown body, dark head, long mouthparts and dark legs. Males have a dark plate that covers their whole body while females have a dark plate that only covers half of their body.
The blacklegged tick is the main vector of Lyme disease in the Northeastern and north central United States. While this tick also occurs in the Southeast, the risk of Lyme disease is very low across the region. This appears to be due to a major difference in feeding activity by immature stages of the tick. The tiny nymphs, which are the important stage for transmission of Lyme disease in the North and Northeast, do not appear to feed on humans in the South, Townsend said. Only adults have been found on humans in Kentucky. Since it is a new tick to the state and has potential human health implications, individuals who suspect they’ve found a blacklegged tick or nymph, should send a sample to their local office of the UK Cooperative Extension Service for identification.
Individuals can take several precautions to protect themselves from ticks. Wear light-colored clothing so ticks are easier to see. Use repellents containing DEET or Picaradin or clothing sprays with the ingredient permethrin. Please note the Environmental Protection Agency warns not to put DEET containing products on children's’ hands or near their eyes or mouth and to never put them on infants younger than two months. Keep lawns next to woods or bushy areas mowed. When individuals are working outdoors, hunting or hiking, they should inspect clothing, themselves and pets regularly for ticks. Ticks generally crawl around the body for an hour before attaching to feed so careful inspection is important, Townsend said. Avoid common tick habitats including tall grass, weeds, brush and forested areas as much as possible.
Educational programs of the Kentucky Cooperative Extension Service serve all people regardless of race, color, age, sex, religion, disability, or national origin.
Information provided by Darrell Simpson
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