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Category:Non-Burrowing Mites (view source)

Revision as of 22:47, 5 April 2010

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[[Ornithonyssus|''Ornithonyssus'']]

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[[Trombicula autumnalis|''Trombicula autumnalis'']]

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~~===''Trombicula autumnalis''===~~

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*Causes [[Parasitic skin infections - Pathology#Trombiculidiasis|parasitic skin infestation]]

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*Also called the harvest mite

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*Not host-specific

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**Will parasitise any animal, including humans

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*Only the larval stage is parasitic

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**Nymphal and adult stages are free-living in the soil

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*Mite numbers are highest in late summer in temperate climates

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**Mite numbers are constant all year in tropical regions

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~~'''Recognition'''~~

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*Six legs

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*Bright orange in colour

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*Hairy

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*No spiracles

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**Breath through cuticle

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~~'''Pathogenesis'''~~

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*Larvae insert mouthparts into skin and inject cytolytic enzymes

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*Feed on partly digested host tissue

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*Causes irritation

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*Can cause a hypersensitivity reaction

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*Mites found on head, ears and flanks of pets

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*Mites found on face and limbs of grazing animals (depending upon host height)

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~~'''Control'''~~

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*Very difficult; try to restrict access of animals to 'hot-spot' areas

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~~'''Treatment'''~~

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*Fipronil spray applied to affected areas

Bara

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Category:Non-Burrowing Mites (view source)

Revision as of 22:47, 5 April 2010

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