Data/hora: 01/06/2024 12:39:39

Provedor de dados: | Brazilian Journal of Microbiology
País: | Brazil
Título: | Biocontrol of pigeon tick Argas reflexus (Acari: Argasidae) by entomopathogenic fungus Metarhizium Anisopliae (Ascomycota: Hypocreales)
Autores: | Tavassoli,Mosa; Pourseyed,Seyed Hassan; Ownagh,Abdulghaffar; Bernousi,Iraj; Mardani,Karim.
Data: | 2011-12-01
Ano: | 2011
Palavras-chave: | Argas reflexus; Pigeon tick; Biological control; Entomopathogenic fungus; Metarhizium anisopliae.
Resumo: | The pigeon tick Argas reflexus is a pathogen-transmitting soft tick that typically feeds on pigeons, but can also attack humans causing local and systemic reactions. Chemical control is made difficult due to environmental contamination and resistance development. As a result, there is much interest in increasing the role of other strategies like biological control. In this study, the efficacy of three strains (V245, 685 and 715C) of entomopathogenic fungus Metarhizium anisopliae for biological control of three life stages of pigeon tick A. reflexus including eggs, larvae, engorged and unfed adults was investigated under laboratory conditions. Five concentrations of different strains of M. anisopliae ranging from 10³ to 10(7) conidia/ml were used. All fungal strains significantly decreased hatchability of A. reflexus eggs. Strain V245 was the most effective strain on the mortality of larval stage with nearly 100% mortality at the lowest concentration (10³ conidia/ml) at 10 days post-inoculation. The mortality rate of both engorged and unfed adult ticks were also increased significantly exposed to different conidial concentrations compared to the control groups (P &lt; 0.05) making this fungus a potential biological control agent of pigeon tick reducing the use of chemical acaricides.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400030
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822011000400030
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.42 n.4 2011
Fonte: | info:eu-repo/semantics/openAccess