Phthiraptera Flashcards
Transmission
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Cat louse
Felicola subrostratus - usually on sick or old cats
Horse louse
Werneckiella equi (vector)
Sheep louse
Bovicola ovis
Pig louse
Haematopinus suis
Poultry louse
Goniocotes gallinae
Control of Bovicola Ovis
Treat post shearing - affected by temp (photophobic)
Plunge/shower dip in organophosphates or synthetic pyrethroids (resistance presant)
Pour on/backline treatment - synthetic pyrethroids (resistance presant)
(low numbers in summer. Eggs won’t hatch in 90% humidity, eggs not laid above 39 degrees, sunlight and heavy rain kills eggs)
Poultry Lice cause…
Irritation
feather loss
poor growth
reduced egg production
Most common poultry louse
Menacanthus stramineus
Anoplura eggs
Large - Black
Lifecycle length of Bovicola ovis
Eggs 10 days
Total 35 days
Number of nymphal stages
3
Type of parasite
obligate/permanent
Biting Lice
Mallophaga
Sheep louse
Linognathus ovillus
Human louse
Phthirus pubis
Sucking lice
Anoplura
Dog louse
Linognathus setosus
Treatment
Same as flea control -fipronil -imidacloprid -selamectin
Horse louse
Haematopinus asini - transmitted on grooming equiptment
Sheep louse
Linognathus pedalis - transmitted in pasture
Bovicola Ovis
Effects on host
Feed on stratum corneum and wool grease
Hypersensitiviy Reaction
irritation -> running -> pulled wool
Cow louse
Bovicola bovis
Cattle lice - most active time of year
Winter
Dog louse
Trichodectes canis
Cow louse
Haematiopinus spp
Solenopotes capillatus
Linognathus vituli
Host range
Host specific
Dog Louse
Heterodoxus spiniger
