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*Host-specific
*Host-specific
*[[Psoroptes cuniculi|''Psoroptes cuniculi'']] in ear canals of rabbits, horses, goats and sheep
*[[Psoroptes cuniculi|''Psoroptes cuniculi'']] in ear canals of rabbits, horses, goats and sheep
'''Pathogenesis'''
*The ears are painful and intensely pruritic
*Affected rabbits shake their heads and scratch their ears
*The inner surfaces of the pinnae are covered with brown, scaly, fetid material, and the skin beneath is raw
*Mites are grossly visible
*Histologically, there is chronic erosive and proliferative eosinophilic dermatitis
**The mites are non-burrowing and thus are found only in the exudate, not in the tissue
'''Diagnosis'''
*Microscopic examination for mites (low magnification)
*Appearance
'''Control'''
*Infestations are difficult to eliminate from a colony
**Ivermectin is usually effective.
*[[Psoroptes|''P.equi'']] at base of mane, tail and forelock in horses
*[[Psoroptes|''P.equi'']] at base of mane, tail and forelock in horses
*[[Psoroptes ovis|''P.ovis'']] in sheep ('''sheep scab''')and cattle
*[[Psoroptes ovis|''P.ovis'']] in sheep ('''sheep scab''')and cattle