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Association of mechanical cleaning and a liquid preparation of diatomaceous earth in the management of poultry red mite, Dermanyssus gallinae (Mesostigmata: Dermanyssidae)

Published: June 23, 2020
By: Luis Francisco Angeli Alves 1, Daian Guilherme Pinto de Oliveira 2, Rafaela Barbosa Pares 1, Olivier A. E. Sparagano 3, Rui Pedro Godinho 4. / 1 Agricultural Biotechnology Lab, Western Paraná State University, Cascavel, PR, Brazil; 2 Biology Department, Federal University of Technology/UTFPR, Santa Helena, PR, Brazil; 3 Department of Infectious Diseases and Public Health, City University of Hong Kong, Hong Kong, Hong Kong SAR; 4 VetScience Bio Solutions Ltda, Maringá, PR, Brazil.
Summary

Abstract

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.

Keywords: Animal production, Alternative control, Ectoparasite, Inert dust.

 

Abstract published in Experimental and Applied Acarology. https://doi.org/10.1007/s10493-020-00497-z.

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Authors:
Luis Alves
Universidade Estadual do Oeste do Paraná
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Daian Oliveira
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olivier
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Talaat Mostafa El-Sheikh
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Talaat Mostafa  El-Sheikh
27 de junio de 2020

Nice article for all layer farmers.

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