Ornithonyssus sylviarum

Ecto-parasltes. Eggs of the louse, Menacanthus sp., and adult fowl mites, Ornithonyssus sylviarum were collected from adult birds and nests, respectively. This choice of ecto-parasite species was based on their potential for negative impact on nestling growth and survivorship (Moss and Camin, 1971 Powlesland, 1976). Logistical constraints determined which instar of each ecto-parasite was used. 

Orius insidiosus, 4098 Orixa, 722 Ornithine, 365,417 L-Omithine, 344 Ornithine decarboxylase, 182 Ornithonyssus sylviarum, 4072 Orobanchaceae, 3585 Orobanche, 3585 Orobanche minor, 3591 Orobanchol, 3585 Orobanchol series, 3589 Orobol, 1667 Oroidin alkaloids, 265 Orotic acid, 1664 Orsaponin, 3235 OrtAo-chloranil, 1063 Orthologous/homologous, 698 Orthostatic hypotension, 697, 1373 Orawacin, 3027... 

The northern fowl mite, Ornithonyssus sylviarum (Arcari Macronyssidae), is an obligatory blood-feeding ectoparasite (hematophagous mite), which is considered to be one of the most important and common pests of poultry. This mite is sensitive to lambda-cyhalothrin, cypermethrin, fenvalerate, and permethrin. Due to short residue time, many registered compounds often need to be repeated after 2-4 weeks. Residue time of an insecticide on feather depends not only on the nature of but also on the formulation of the drug [39]. 

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