C. Cruz-Vázquez, Juan Carvajal-Márquez, R. Lezama-Gutiérrez, I. Vitela-Mendoza, C. Ángel-Sahagún
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引用次数: 5
Abstract
Veterinaria Mexico OA ISSN: 2448-6760 Cite this as: Cruz Vazquez C, Carvajal Marquez J, Lezama Gutierrez R, Vitela Mendoza I, Angel Sahagun CA. Efficacy of Metarhizium anisopliae in the control of the horn fly, Haematobia irritans ( Diptera: Muscidae ), under natural infestation conditions. Veterinaria Mexico OA. 2017;4(2). doi: 10.21753/vmoa.4.2.384 . The aim of this study was to determine the efficacy of the entomopathogenic fungus, Metarhizium anisopliae strain 134 (Ma134), for dairy cattle naturally infested with Haematobia irritans (L.) An aqueous formulation of 1 x 10 8 conidia/ml was applied by aspersion on a group of eight cows every seven days for a total of four applications, while a control group was sprayed with the same solution without conidial content. The degree of horn fly infestation was estimated daily in both groups by the direct count of adult flies found resting or feeding on the animals, and Abbott’s formula was used to calculate the effectiveness of the formulation. The Ma134 formulation resulted in a 68.6 % reduction of the fly infestation during the study period, and a significant reduction was observed from the first week post-application ( p < 0.05). The results show that the Ma134 formulation is effective in reducing infestations of horn fly, H. irritans , on dairy cattle under natural conditions. Thus, the fungus, Ma134, can be considered a candidate for biological control for the integrated management of H. irritans . Figure 1. Infestation index of horn flies, Haematobia irritans , on cows treated with the aqueous formulation of Ma134
期刊介绍:
Veterinaria México OA (ISSN 2448-6760) is an online scientific journal edited by Universidad Nacional Autónoma de México (UNAM). The journal is Open Access and follows UNAM''s initiative, to transmit knowledge free of charge to the readership and authors, with no Article Processing Charges.
This journal publishes advances in Veterinary Sciences and Animal Production, and to reach more lectures across the world the journal was updated since 2014 from its predecessor printed in paper Veterinaria México (ISSN 0301-5092) and its digital version (ISSN 2007-5472).