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| − | *Live on the skin surface
| + | {{frontpage |
| | + | |pagetitle = Non-Burrowing Mites |
| | + | |pagebody = |
| | + | They live on the skin surface and feed on either skin scales and tissue or suck blood. |
| | + | |contenttitle =Content |
| | + | |contentbody =<big><b> |
| | + | <br><br> |
| | + | <categorytree mode=pages>Non-Burrowing Mites</categorytree> |
| | + | </b></big> |
| | + | |logo =Otodectes logo.jpg |
| | + | }} |
| | + | {{Learning |
| | + | |flashcards = [[Mites_Flashcards|Mites Flashcards]] |
| | + | }} |
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| − | *Feed on either skin scales and tissue or suck blood
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| − | | + | [[Category:Mites|B]] |
| − | [[Psoroptes|''Psoroptes'']] | + | [[Category:To_Do_-_Parasites]] |
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| − | [[Chorioptes bovis|''Chorioptes bovis'']]
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| − | [[Otodectes cynotis|''Otodectes cynotis'']]
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| − | [[Cheyletiella spp.|''Cheyletiella spp.'']]
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| − | ===''Dermanyssus gallinae''===
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| − | *Red mite of poultry
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| − | *Spends most of time '''off''' the host
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| − | **Adults and nymphs visit poultry at night to feed
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| − | *Life cycle takes '''1 week'''
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| − | *Adults can survive several months without feeding so reservoirs can build up
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| − | '''Appearance'''
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| − | *Spider like mite with long legs
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| − | *White or grey
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| − | **Becomes red when engorged with blood after feeding
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| − | *Few hairs on body
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| − | *Hooks on legs
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| − | '''Pathogenesis'''
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| − | *Blood sucking mite
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| − | *Lesions usually found on the breast and legs
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| − | *Irritation, restlessness, decrease in egg production
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| − | *Anaemia can result if mites are present in large numbers
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| − | *Newly hatched chicks can rapidly die if infested
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| − | '''Treatment'''
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| − | *Acaricide
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| − | *Environmental treatment
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| − | *Remove wild bird nests
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| − | ===''Ornithonyssus''===
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| − | *Also called the Northern mite or Northern feather mite
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| − | *Closely related to ''Dermanyssus''
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| − | *Hairy
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| − | *Spends entire life cycle '''on''' the host
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| − | *Occurs in caged birds and poultry
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| − | *Causes feathers to become matted and severe scabbing can develop
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| − | **Scabs particularly seen around the vent
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| − | *Decreases egg production
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| − | *Grey or black discolouration of feathers when large numbers of mites are present
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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
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| − | ===''Leporacarus''===
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| − | *Known as the rabbit fur mite
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| − | *Found on rabbits (domestic and wild) and on hares
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| − | *Common
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| − | *Clings to individual hairs
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| − | *Feeds on sebaceous secretions and skin debris
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| − | *Non-pathogenic
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| − | *May cause dermatitis in humans handling infected animals
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| − | [[Category:Mites]] | |
