Results 111 to 120 of about 594 (144)
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In vitro entomopathogenic activity of Beauveria bassiana against Psoroptes spp. (Acari: Psoroptidae)
Veterinary Parasitology, 2006An indigenous strain (IHEM 18747) of Beauveria bassiana (Balsamo) Vuillemin (Deuteromycetes) was evaluated for its in vitro entomopathogenic activity against the parasitic mite Psoroptes ovis Hering (Acari: Psoroptidae) from rabbits. The following aspects were evaluated: (1) effects of conidial concentration on the viability of adult females; (2 ...
Lekimme, Mireille +5 more
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Influence of Psoroptes ovis (Hering) (Acari: Psoroptidae) on the Performance of Beef Steers
Journal of Economic Entomology, 1984Forty-eight Hereford steers were used to determine the effects of Psoroptes avis (Hering) infestations on weight gain, feed conversion, and feed intake. Calves were randomly assigned to six pens with three pens per treatment. No calves were infected in the control pens, whereas two calves in each of the infested pens were initially exposed to P.
N A, Cole, F S, Guillot, C W, Purdy
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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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Precision Electronic Counting of Psoroptes Ovis (Acari: Psoroptidae)
Journal of Medical Entomology, 1985Psoroptes ovis mites were counted and measured with an electronic particle counter. A comparison of numbers of manually and electronically counted mites yielded a ratio of ca. 0.98. A reliable method for counting and measuring different life stages of near-microscopic arthropods is presented.
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Inter- and intra-specific variation within the genus Psoroptes (Acari: Psoroptidae)
Veterinary Parasitology, 1999In this paper the taxonomy and relative importance of various species within the genus Psoroptes are reviewed with respect to inter- and intra-specific variations in cross infestivity and host specificity, site of infestation and morphological characters.
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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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2008
Published as part of Perez-Gelabert, Daniel E., 2008, Arthropods of Hispaniola (Dominican Republic and Haiti): A checklist and bibliography, pp.
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Published as part of Perez-Gelabert, Daniel E., 2008, Arthropods of Hispaniola (Dominican Republic and Haiti): A checklist and bibliography, pp.
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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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Ultrastructure of the alimentary canal of the sheep scab mite, Psoroptes ovis (Acari: Psoroptidae)
Veterinary Parasitology, 2002The mite Psoroptes ovis causes sheep scab disease in flocks throughout much of the world. A serious impediment to the development of novel control measures for this mite is our inability to produce in vitro colonies of the mite. Here, we describe the alimentary canal of the mite with the particular aim of determining what it feeds on, as part of a ...
B R F, Mathieson, M J, Lehane
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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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