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Questions and Answers
Larva ticks have eight legs.
Larva ticks have eight legs.
False
Ticks only face the problem of dehydration during their life cycle.
Ticks only face the problem of dehydration during their life cycle.
False
Ixodid ticks eliminate excess water and ions through their coxal organs.
Ixodid ticks eliminate excess water and ions through their coxal organs.
False
Fever is not a typical symptom of tick-borne disease.
Fever is not a typical symptom of tick-borne disease.
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Adult ticks have six legs.
Adult ticks have six legs.
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Ticks do not face the problem of overhydration during feeding.
Ticks do not face the problem of overhydration during feeding.
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Argasid ticks eliminate excess water and ions through their salivary glands.
Argasid ticks eliminate excess water and ions through their salivary glands.
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Ticks only have two life stages: larva and adult.
Ticks only have two life stages: larva and adult.
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Ticks can detect their hosts through the sense of smell and movement.
Ticks can detect their hosts through the sense of smell and movement.
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Formamidines are used to control ixodid ticks.
Formamidines are used to control ixodid ticks.
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The TicksBuster-trap is an effective method for reducing tick populations.
The TicksBuster-trap is an effective method for reducing tick populations.
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Acaricides are safe for the environment and pets.
Acaricides are safe for the environment and pets.
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Quarantining infected animals is not a necessary step in controlling tick infestations.
Quarantining infected animals is not a necessary step in controlling tick infestations.
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Ticks can be controlled using sex pheromones.
Ticks can be controlled using sex pheromones.
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The epicuticle of the integument has a waxy lipid that prevents water loss from the body surface.
The epicuticle of the integument has a waxy lipid that prevents water loss from the body surface.
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Soft ticks are vectors of relapsing fever caused by Borrelia duttonii.
Soft ticks are vectors of relapsing fever caused by Borrelia duttonii.
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Mites can be controlled using the same methods as ticks.
Mites can be controlled using the same methods as ticks.
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Seed ticks are the adult stage of ixodid ticks.
Seed ticks are the adult stage of ixodid ticks.
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Tick infestations only cause economic losses due to reduced production.
Tick infestations only cause economic losses due to reduced production.
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Acaricides are chemicals that only kill ticks.
Acaricides are chemicals that only kill ticks.
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Ticks only feed on blood and do not spread disease-causing microorganisms.
Ticks only feed on blood and do not spread disease-causing microorganisms.
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Hereditary transmission involves a male vector passing disease organisms to its eggs.
Hereditary transmission involves a male vector passing disease organisms to its eggs.
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Sex pheromones are chemical compounds that repel members of the opposite sex of the same species.
Sex pheromones are chemical compounds that repel members of the opposite sex of the same species.
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The main economic losses caused by tick infestation result from increased production and treatment cost.
The main economic losses caused by tick infestation result from increased production and treatment cost.
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Study Notes
Life Stages of Ticks
- The life stages of a tick include egg, larva, nymph, and adult.
- Larval ticks have six legs, while adult ticks have eight legs.
Symptoms of Tick-Borne Disease
- Typical symptoms of tick-borne disease include fever, headache, and muscle aches, and sometimes a rash.
Maintaining Water Homeostasis in Ticks
- Ticks face two main problems in maintaining water homeostasis: overhydration during feeding and dehydration during fasting.
- During feeding, the salivary glands play a significant role in returning excess water and ions to the host.
- In rapidly feeding argasid ticks, a pair of coxal organs eliminate surplus water and ions.
- During fasting, ticks use waxy lipids in the epicuticle of the integument and spiracle closing devices to restrict water loss.
- Ticks also absorb water vapor from the surrounding atmosphere.
Common Terms Relevant to Medical Acarology
- Acaricide: a chemical that kills mites and ticks.
- Seed tick: the small larva of an ixodid tick before it has blood-fed.
- Spirochaetes: Gram-negative bacteria with a spiral shape, such as Borrelia duttonii, which is spread by soft ticks and causes relapsing fever.
- Vector: an organism that conveys an autologous agent from one host to another.
- Hereditary transmission: a female vector passing disease organisms to her eggs and thus to the next generation.
- Species sanitation: control or eradication directed against one vector species in a particular area.
Control of Acari
- Ticks bite, suck blood, and spread disease-causing microorganisms, resulting in fatal illnesses.
- Main economic losses caused by tick infestation result from reduced production, treatment costs, and skin value.
- Sex pheromone: a chemical compound produced by a species that attracts members of the opposite sex of the same species.
- Formamidines: a group of acaricidal compounds used to kill Demodex mites.
Methods of Tick Control
- Keep animals in clean surroundings.
- Burn infested pasture or grazing lands.
- Isolate new stock and ensure they are free from infection.
- Use tick traps that mimic the heat, carbon dioxide, and movement of a passing animal or human.
Mite Control
- Maintain proper sanitation to control mites.
- Quarantine infected animals.
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