First report of Metarhizium anisopliae IP 46 pathogenicity in adult Anopheles gambiae s.s. and An. arabiensis (Diptera; Culicidae)

L.L. Mnyone, T.L. Russell, I.N. Lyimo, D.W. Lwetoijera, M.J. Kirby, C. Luz

Research output: Contribution to journalArticleAcademicpeer-review

28 Citations (Scopus)

Abstract

The entomopathogenic fungus Metarhizium anisopliae isolate IP 46, originating from a soil sample collected in 2001 in the Cerrado of Central Brazil, was tested for its ability to reduce the survival of adult male and female Anopheles gambiae s.s. and An. arabiensis mosquitoes. A 6-h exposure to the fungus coated on test paper at a concentration of 3.3 × 106 conidia cm-2 reduced the daily survival of both mosquito species (HR = 3.14, p <0.001), with higher risk of dying in An. gambiae s.s relative to An. arabiensis (HR = 1.38, p <0.001). Fungal sporulation was observed in >95% of mosquito cadavers in the treatment groups. The results indicate that M. anisopliae IP 46 has the potential to be a bio-control agent for African malaria vector species, and is a suitable candidate for further research and development.
Original languageEnglish
Article number59
Number of pages4
JournalParasites & Vectors
Volume2
DOIs
Publication statusPublished - 2009

Keywords

  • beauveria-bassiana
  • entomopathogenic fungus
  • ovicidal activity
  • aedes-aegypti
  • malaria
  • transmission
  • temperature
  • virulence
  • vectors

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