Changes

Category:Non-Burrowing Mites (view source)

Revision as of 22:47, 5 April 2010

950 bytes removed , 22:47, 5 April 2010

no edit summary

Line 16: Line 16:

[[Ornithonyssus|''Ornithonyssus'']]

+

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

−

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

−

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

−

*Also called the harvest mite

−

*Not host-specific

−

**Will parasitise any animal, including humans

−

*Only the larval stage is parasitic

−

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

−

*Mite numbers are highest in late summer in temperate climates

−

**Mite numbers are constant all year in tropical regions

−

~~'''Recognition'''~~

−

*Six legs

−

*Bright orange in colour

−

*Hairy

−

*No spiracles

−

**Breath through cuticle

−

~~'''Pathogenesis'''~~

−

*Larvae insert mouthparts into skin and inject cytolytic enzymes

−

*Feed on partly digested host tissue

−

*Causes irritation

−

*Can cause a hypersensitivity reaction

−

*Mites found on head, ears and flanks of pets

−

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

−

~~'''Control'''~~

−

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

−

~~'''Treatment'''~~

−

*Fipronil spray applied to affected areas

Bara

Author, Donkey, Bureaucrats, Administrators

53,803

edits