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The female lays eggs in faeces and dead rotting material.  The eggs then hatch within a day.  There are 3 subsequent larval stages and feed upon the faeces.  When the larvae mature, they relocate to drier areas, where they form pupae.  The pupae will then later mature into adults.
 
The female lays eggs in faeces and dead rotting material.  The eggs then hatch within a day.  There are 3 subsequent larval stages and feed upon the faeces.  When the larvae mature, they relocate to drier areas, where they form pupae.  The pupae will then later mature into adults.
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==Pathogenesis==
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*Production losses
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**Reduced weight gain
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**Reduced milk yield
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**Fly worry
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*Disease transmission
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**Viruses
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***E.g. Coxsackie, enteroviruses, poliomyelitis
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**Bacteria
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***E.g. [[Bacillus species#Bacillus anthracis|Anthrax]], [[Escherichia coli|''E.coli'']], [[Salmonella|''Salmonella'']], [[Shigella|''Shigella'']], [[Moraxella bovis|New Forest Eye Disease]]
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**Helminths
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***E.g. Intermediate hosts for [[Parasitic skin infections - Pathology#Helminths|''Habronema'']] in horses, some poultry tapeworms, [[Parafilaria spp.|''Parafiliaria'']] and [[Cattle#Other Cattle Nematodes|''Thelazia'']] in cattle
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*Feeds on secretions from the eyes, nose and mouth as well as blood left in wounds by other flies
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==Control==
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*Fly control in breeding and resting sites (to reduce the source)
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**Breeding sites
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***Good sanitation
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***Collect dung in heaps
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***Spray surface of heaps with insecticide to kill surviving adults and larvae
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***Biological control
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**Resting sites
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***Spray inside and outsides of buildings with insecticide
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*Fly control on the host
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**Wide range of products available
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**Nil or short withdrawal period needed for milking animals or animals going for slaughter
   
[[Category:Nuisance_Flies]]
 
[[Category:Nuisance_Flies]]
 
[[Category:To_Do_-_Max]]
 
[[Category:To_Do_-_Max]]
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