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Ticks and Mites

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Stephanie Hoytee

on 3 April 2013

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Transcript of Ticks and Mites

Describe and discuss the major similarities and differences between ticks and mites and how one can control the ectoparasites A tick is a blood feeding external parasite of mammals , birds and reptiles throughout the world. There are two main families of tick, the Ixodidae (hard ticks) and Argasidae (soft ticks). It has been noted that there are about 850 species worldwide. Hard ticks are distinguished by a dorsal shield. In females it is relatively small. In males it covers the entire dorsal surface. These ticks are tapered anteriorly and their mouth parts visible from a dorsal view. Soft ticks are leathery and lack a dorsal shield. Their mouth parts are sub terminally attached and are not visible from a dorsal view. Outer shell of hard tick is made of chitin while soft ticks have a membranous outer surface. The mouth area has a specialized harpoon-like structure called a Hypostome which the tick uses to anchor itself while feeding. The life cycle consist of four stages:
Egg six legged larva eight legged nymph adult Spinose ear tick (Otobius megnini) (Ornithodoros hermsi) American dog tick (Dermacentor variabilis) A mite is a minute ectoparasite arachnid that often parasitizes a large range of organisms from plants to animals and humans. Scabies mite (Sarcoptes) Dust Mite Spider mite Food mite Mange mite Below is a table summarizing some of the major diseases caused by ticks and mites. Both these ectoparasites carry disease-producing microorganisms which they transmit to mammals, birds and reptiles through a bite in the skin. Apart from these major diseases these ectoparasites are also responsible for: Anaemia Dermatosis
Otoacariasis TICKS

The best way to protect against tick borne illness and disease is to:

1. Avoid tick bites by avoiding known tick infested areas.

2. Wear protective light-coloured clothing such as long-sleeved shirts, long trousers, boots or sturdy shoes and a head covering.

3. Clean and maintain lawns around your homes, remove all underbrush and shrubs, keep weeds cut and the grass under 3 inches in height.

4. Thoroughly and carefully inspect pets, wash dog bedding frequently with Safe Solutions Pet Wash MITES

1. Practice proper sanitation and avoid using humidifiers.

2. Avoid sleeping with or keeping pets-especially cats and dogs inside.

3. Apply direct sunlight to bedding, furniture, drapes and clothing

4. Routinely steam clean the mattress, pillows and carpeting Chemical agents that can be used to control ticks and mites

- Dusting sulphur
- Ivermectin
- Permethrin
- Deltramethrin
- Bifenthrin

How can these
ectoparasites be
controlled ? Thank you for your time. Any questions ? ? REFERENCES

Baker, A. (1999). Mites and Ticks of Domestic Animals

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Illinois Department of Public Health. “Prevention and Control: Common Ticks.” Accessed March 26, 2013. http://www.idph.state.il.us/envhealth/pccommonticks.htm.

James, W.D., T. Berger, D. Elston . (2006). Andrews' Diseases of the Skin: Clinical Dermatology. Saunders Elsevier.

Quizlet: “Ticks, Mites and Control.” Accessed March 26, 2013. http://quizlet.com/5467261/ticks-mites-and-control-flash-cards/.

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The Texas A&M University System. “ Tick Control and Management.” Accessed March 30, 2013. http://tickapp.tamu.edu/control.php#top.

Tick and Tick-borne Diseases in Texas. “Anatomy of Hard and Soft Ticks.” Accessed March 26, 2013. http://www.ticktexas.org/ticks/ticks101_anatomy.htm.

Tvedten, S. “Chapter 20: The Best Control for Ticks, Mites, mold and Fungi.” November 06, 2012. Accessed March 26, 2013. http://www.stephentvedten.com/20_Ticks_Mites_Mold_Fungi.pdf.

Wendel, K., A. Rompalo. (2002). Scabies and Pediculosis Pubis: An Update of Treatment Regimens and General Review. John Hopkins University Bloomberg School of Public Health, Baltimore, Maryland.

Wesson, D. (2001). Ticks and Mites.www.phsource.us/PH/PPT/ME/Ticks_Mites.ppt. (21-03-2013)


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