Efficacy of Metarhizium anisopliae in the control of the horn fly, Haematobia irritans ( Diptera: Muscidae ), under natural infestation conditions

IF 0.2 4区 农林科学 Q2 Veterinary Veterinaria Mexico Pub Date : 2017-04-06 DOI:10.21753/VMOA.4.2.384
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
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绿僵菌在自然侵扰条件下控制角蝇(直翅目:蝇科)的效果
墨西哥兽医OA ISSN:2448-6760引用如下:Cruz Vazquez C,Carvajal Marquez J,Lezama Gutierrez R,Vitela Mendoza I,Angel Sahagun CA。绿僵菌在自然侵扰条件下控制角蝇、刺激性血蜱(Diptera:蝇科)的功效。兽医墨西哥OA。2017年;4(2)。doi:10.21753/vmoa.4.2.384。本研究的目的是确定昆虫病原真菌绿僵菌菌株134(Ma134)对自然感染刺激性嗜血杆菌(L.)的奶牛的疗效。通过每七天在八头牛身上喷洒1 x 108分生孢子/ml的水性制剂,共施用四次,而对照组用不含分生孢子的相同溶液喷雾。通过直接计数在动物身上休息或进食的成年苍蝇,每天估计两组中角蝇的侵扰程度,并使用Abbott公式计算配方的有效性。在研究期间,Ma134制剂减少了68.6%的蝇患,并且从施用后的第一周起观察到显著减少(p<0.05)。结果表明,在自然条件下,Ma134配方能够有效减少角蝇(H.刺激物)对奶牛的侵扰。因此,真菌Ma134可以被认为是综合管理H.刺激物的生物控制的候选者。图1。用Ma134水性制剂处理的奶牛上角蝇的感染指数,刺激性嗜血杆菌
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来源期刊
Veterinaria Mexico
Veterinaria Mexico VETERINARY SCIENCES-
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>12 weeks
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).
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