Skip to main content
Article thumbnail
Location of Repository

The effect of the coccinellid Harmonia axyridis (Coleoptera: Coccinellidae) on transmission of the fungal pathogen Pandora neoaphidis (Entomophthorales: Entomophthoraceae)

By P.M. Wells, J. Baverstock, M.E.N. Majerus, F.M. Jiggins, H.E. Roy and J.K. Pell

Abstract

The coccinellid Harmonia axyridis is a recent arrival in the UK and is an intraguild predator of the entomopathogenic\ud fungus Pandora neoaphidis. Harmonia axyridis entirely consumes P. neoaphidis-sporulating cadavers and this may have a negative\ud effect on the epizootic potential of P. neoaphidis. Here we assessed within plant transmission, and between plant vectoring, of P.\ud neoaphidis in the presence of either H. axyridis or Coccinella septempunctata, a native coccinellid that only partially consumes\ud fungal cadavers. Transmission was greater in the presence of coccinellids, with 21% of aphids becoming infected with the fungus\ud whilst only 4% were infected in the control. However, there was no significant effect of coccinellid species or sex on fungal transmission.\ud Between plant vectoring occurred infrequently in the presence of both species of coccinellid. The effect of H. axyridis on P.\ud neoaphidis transmission is, therefore, likely to be similar to that of the native coccinellid C. septempunctata

Topics: Biology and Microbiology, Zoology, Ecology and Environment
Year: 2011
OAI identifier: oai:nora.nerc.ac.uk:12141
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.eje.cz/scripts/view... (external link)
  • http://nora.nerc.ac.uk/id/epri... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.