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− | *Causes [[Trombiculidiasis|parasitic skin infestation]]
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− | *Also called the harvest mite
| + | {| cellpadding="10" cellspacing="0" border="1" |
| + | | Also known as: |
| + | | ''The harvest mite'' |
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| + | |} |
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− | *Not host-specific
| + | Trombicula autumnalis are [[Non-Burrowing Mites|surface mites]]. They cause [[Trombiculidiasis|parasitic skin infestation]] and will parasitise any animal, including humans as they are non-species specific. The mite numbers are highest in late summer in temperate climates and are therefore constant all year in tropical regions. |
− | **Will parasitise any animal, including humans
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− | *Only the larval stage is parasitic
| + | ==Identification== |
− | **Nymphal and adult stages are free-living in the soil
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− | *Mite numbers are highest in late summer in temperate climates
| + | The mites are bright orange in colour and hairy. They have six legs and no spiracles. They breath through their cuticle |
− | **Mite numbers are constant all year in tropical regions
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| + | ==Lifecycle== |
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− | '''Recognition'''
| + | The lifecycle of Trombicula autumnalis mites lasts around 50 to 70 days. The nymphal and adult stages are free-living in the soil. The female mites become more active in the spring and lay their eggs onto the vegetation. Only the larval stage is parasitic to the host. |
− | *Six legs
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− | *Bright orange in colour
| + | ==Pathogenesis== |
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− | *Hairy
| + | The larvae insert their mouthparts into the host's skin and inject cytolytic enzymes. They then feed on partly digested host tissue causing irritation and potentially a hypersensitivity reaction. |
| + | The Mites are mainly found on the head, ears and flanks of pets and can be found on the face and limbs of grazing animals, depending upon the host height. |
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− | *No spiracles
| + | ==Control== |
− | **Breath through cuticle
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| + | Trombicula autumnalis mites are very difficult to control. The main method of control is to try to restrict the access of animals to 'hot-spot' areas. |
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− | '''Pathogenesis'''
| + | ==Treatment== |
− | *Larvae insert mouthparts into skin and inject cytolytic enzymes
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− | *Feed on partly digested host tissue
| + | Apply Fipronil spray to affected areas. |
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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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| + | [[Category:Non-Burrowing_Mites]] |
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− | '''Treatment'''
| + | [[Category:To_Do_-_AimeeHicks]] |
− | *Fipronil spray applied to affected areas
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− | [[Category:Non-Burrowing_Mites]]
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− | [[Category:To_Do_-_Parasites]] | |