Results 121 to 130 of about 296 (149)
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Species of the genus Psoroptes (Acari: Psoroptidae): A taxonomic consideration
Experimental & Applied Acarology, 2000The biosystematic status of mite species belonging to the genus Psoroptes Gervais, 1841 is difficult to determine by phenotypic methods and has been subject to taxonomic revisions and ongoing debate. At present, the existence of five species, P cuniculi (Delafond, 1859), P. ovis (Hering, 1838). P. equi (Hering, 1838), P.
Zahler, M. +4 more
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Taxonomic reconsideration of the genus Chorioptes Gervais and van Beneden, 1859 (Acari: Psoroptidae)
Experimental & Applied Acarology, 2001The present review of the literature on mites of the genus Chorioptes Gervais and Van Beneden, 1859 argues for a support of the validity of C. bovis (Hering, 1845) and C. texanus Hirst, 1924 based on biological, morphological and molecular genetic studies. However, the validity of three further species. C. crewei Lavoipierre, 1958, C. mydaus Fain, 1975
Zahler, M. +4 more
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The Journal of Parasitology, 1983
Reciprocal cross-matings of Psoroptes ovis and P. cuniculi occurred and produced viable offspring through the F2 generation. Hybrids of these crosses were infective to both rabbits and cattle. Mean lengths of the male l4 setae of the parental species differed significantly from each other as well as from those of the hybrid males.
F C, Wright, J C, Riner, F S, Guillot
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Reciprocal cross-matings of Psoroptes ovis and P. cuniculi occurred and produced viable offspring through the F2 generation. Hybrids of these crosses were infective to both rabbits and cattle. Mean lengths of the male l4 setae of the parental species differed significantly from each other as well as from those of the hybrid males.
F C, Wright, J C, Riner, F S, Guillot
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Journal of Medical Entomology, 1998
In this study potential vaccine candidate immunogens were identified and evaluated in a vaccine challenge trial. Calves vaccinated with a partially purified fraction of Psoroptes ovis-soluble proteins had 8 of 14 calves free of palpable lesions 8 wk after a challenge infestation. A self-grooming behavioral response elicited by a pruritic immediate-type
J H, Pruett +4 more
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In this study potential vaccine candidate immunogens were identified and evaluated in a vaccine challenge trial. Calves vaccinated with a partially purified fraction of Psoroptes ovis-soluble proteins had 8 of 14 calves free of palpable lesions 8 wk after a challenge infestation. A self-grooming behavioral response elicited by a pruritic immediate-type
J H, Pruett +4 more
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Variations among Strains of Psoroptes ovis (Acarina: Psoroptidae) on Sheep and Cattle
Annals of the Entomological Society of America, 1971Evidence is presented to support the position that distinct strains of the common sheep scab mite, Psoroptes ovis (Hering), may exist. Differentiation between strains is based on observations that (1) some strains withstand population reduction more successfully than others during summer months, (2) members of such strains survived contact with the ...
Irwin H. Roberts, William P. Meleney
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A new Psoroptidae (Acari: Astigmata) fromDendrohyrax dorsalisin Zaire
International Journal of Acarology, 1981Abstract A new genus and species Hyracoptes emersoni (Psoroptidae, Psoroptinae) is described from the tree hyrax, Dendrohyrax dorsalis, in Zaire.
A. Fain, F.S. Lukoschus
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Identification and Purification of a 16-kDa Allergen from Psoroptes ovis (Acarina: Psoroptidae)
Journal of Medical Entomology, 1999Psoroptes ovis, (Hering), the sheep scab mite, is the causative agent of an allergic dermatitis of sheep and cattle. Recent studies of the host immune response to this ectoparasite have provided information that suggests control may be achieved by immune intervention.
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Parazitologiia, 1981
Results of the effect of synthetic analogs of juvenile hormones of insects, dimiline, altozide and altozare, on the mite P. cuniculi have been shown. It has been noted that repeated coverings of mites in Petri dishes and rabbits' skin with 0.005--5% emulsions of altozide, 0.005--10% emulsions of altozare and 0.25--8% suspensions of dimiline cause no ...
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Results of the effect of synthetic analogs of juvenile hormones of insects, dimiline, altozide and altozare, on the mite P. cuniculi have been shown. It has been noted that repeated coverings of mites in Petri dishes and rabbits' skin with 0.005--5% emulsions of altozide, 0.005--10% emulsions of altozare and 0.25--8% suspensions of dimiline cause no ...
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Feeding of Psoroptes Ovis (Acari: Psoroptidae) on Cattle1
Journal of Medical Entomology, 1981Fred C. Wright, John R. Deloach
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