African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5090

Full Length Research Paper

Interaction and activity of nematophagous fungus Duddingtonia flagrans on Haematobia irritans (Diptera: Muscidae)

Anderson Rocha Aguiar
  • Anderson Rocha Aguiar
  • Department of Parasitology, University of Vila Velha-ES, Vila Velha, ES, Brazil.
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Leticia Prates Martins
  • Leticia Prates Martins
  • Department of Parasitology, University of Vila Velha-ES, Vila Velha, ES, Brazil.
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Gabriella Lima Santos
  • Gabriella Lima Santos
  • Department of Parasitology, University of Vila Velha-ES, Vila Velha, ES, Brazil.
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Aline Lisboa Bernardo Canal
  • Aline Lisboa Bernardo Canal
  • Department of Parasitology, University of Vila Velha-ES, Vila Velha, ES, Brazil.
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Emy Hiura
  • Emy Hiura
  • Department of Parasitology, University of Vila Velha-ES, Vila Velha, ES, Brazil.
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Filippe Elias de Freitas Soares
  • Filippe Elias de Freitas Soares
  • Department of Biochemistry and Cell Biology, Federal University of Viçosa, Viçosa, MG, Brazil.
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Carolina Magri Ferraz
  • Carolina Magri Ferraz
  • Department of Parasitology, University of Vila Velha-ES, Vila Velha, ES, Brazil.
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Jackson Victor de Araujo
  • Jackson Victor de Araujo
  • Department of Veterinary Medicine, Federal University of Viçosa, Viçosa, MG, Brazil.
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Fabio Ribeiro Braga
  • Fabio Ribeiro Braga
  • Department of Parasitology, University of Vila Velha-ES, Vila Velha, ES, Brazil.
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  •  Received: 08 February 2017
  •  Accepted: 12 April 2017
  •  Published: 28 April 2017

Abstract

Haematobia irritans, also known as the horn fly, is a “plague” that spreads rapidly among cattle herds, especially in the southeast of Brazil. The aim of this study was to evaluate the interaction and activity of nematophagous fungus Duddingtonia flagrans (AC001) on H. irritans (Diptera: Muscidae). The experiment was conducted using the nematophagous fungus (AC001), which is harmless to animals, humans, and the environment. At the beginning of the experimental trial, samples of adult H. irritans were collected manually, directly from the dorsal region of naturally infested cattle of the Nelore breed. The flies where divided into two groups: groups of adult flies treated with AC001 (treated group) and groups of flies that did not receive treatment (control group). During the trial, the experiment was monitored daily for five days and the results were recorded. The results showed that the AC001 fungal isolate grew, colonized, and consequently caused the death of the flies in the treated group, while in the control group, no interaction or growth was observed, and the flies remained alive. It was concluded that the fungus D. flagrans interacted with adult flies, taking into consideration a “possible attack” by chitinase enzymes, since the fungal isolate drew on the chitin contained in the exoskeletons of the insects. In addition, attention should be focused on new studies that can demonstrate that, in the future, biological control of the horn fly could be an effective and safe method when compared with other methods.

 

Key words: Biological control, Duddingtonia flagrans, horn fly, Nelore, Brazil.