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Exp Appl Acarol ; 81(2): 215-222, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32378067

RESUMO

The poultry red mite (PRM), Dermanyssus gallinae, is an ectoparasite of great importance related to poultry farms worldwide. Problems associated with its control have led to the search for alternative treatments, especially using inert dust, which has recently been introduced into liquid formulations. Therefore, the objective of this work was to evaluate the acaricidal activity of a liquid diatomaceous earth (DE) preparation in the laboratory and its association with mechanical cleaning (brushing) in the field. In the laboratory it was first determined that a concentration of 10% DE would be necessary for field applications. The field experiment was conducted in a commercial poultry house. The 10% DE liquid preparation was administered in three applications and associated to mechanical cleaning. Then, 42 days after the first DE application, a population reduction of 94.7% was observed in relation to the initial population of mites. These results confirm the efficiency of DE applications in association with mechanical cleaning already adopted in poultry houses as an alternative for the control of D. gallinae, which can also contribute to avoiding mite resistance to chemical acaricides.


Assuntos
Infestações por Ácaros , Ácaros , Doenças das Aves Domésticas , Trombiculidae , Animais , Galinhas , Terra de Diatomáceas , Infestações por Ácaros/prevenção & controle , Infestações por Ácaros/veterinária , Aves Domésticas , Doenças das Aves Domésticas/prevenção & controle
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