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John Fulton

John Fulton
Former County Extension Director

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In The Backyard

Horticulture columns and tips done on a timely basis
American Dog Tick
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Posted by John Fulton -

Tick numbers seem to be off the chart again this year. Anyone who has been out in tall grass or wooded areas can probably attest to that. Probably, the frequent spring rains in much of the state have provided the high moisture and humidity that ticks need. Ticks are large, flattened mites that feed as parasites on mammals, birds and reptiles. They hatch from eggs into six-legged larvae that locate hosts and feed before dropping off the host and molting into eight-legged nymphs. Nymphs locate hosts, feed and drop off to molt into eight-legged adults. Adults also locate hosts on which to feed. Males may stay on the host, mating with females coming there to feed. Females engorge on blood to several times their original size, drop off the host and lay hundreds of eggs. With each tick having to find three hosts in its lifetime, many ticks starve before reproducing, although ticks can survive for long periods without food.

Ticks are numerous in areas of tall grass, where humidity is high and hosts common. Mowing greatly reduces tick numbers. When walking or working in areas of tall grass or other areas with ticks, apply a repellent containing about 30% DEET, such as Off or Cutters, to the lower legs and pants legs. If ticks are numerous in mowed areas, spraying carbaryl, permethrin, or bifenthrin should help give some control.

If a tick is attached, grasp the head with tweezers where the mouthparts enter the skin, pulling slowly and consistently. The tick will release its mouthparts and come loose. Do not handle the tick. Good luck trying to smash a tick. It's about like trying to flatten a dime with a rubber mallet. Other methods such as heat and nail polish commonly kill the tick, resulting in locked mouthparts that remain in the wound to cause infection. A tick typically feeds for 24 hours before releasing disease organisms, so remove ticks promptly when you find them.

Also pay particular attention to pets in wooded areas, or areas with tall grass. Use preventative products when possible. Carbaryl dust may be used on pets and their sleeping areas help control ticks and fleas. Mosquito and tick repellents containing DEET can be used on clothing and body parts for people. Permethrin can be used on clothing only, and not sprayed on the body. Be particularly careful of permethrin around cats and dogs, as it can be lethal.

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