SciELO - Scientific Electronic Library Online

vol.103 issue1-2Physical, chemical and optical properties of aerosol particles collected over Cape Town during winter haze episodesTemporal variation in Plio-Pleistocene Antidorcas (Mammalia: Bovidae) horncores: The case from Bolt's Farm and why size matters author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links

  • On index processCited by Google
  • On index processSimilars in Google


South African Journal of Science

On-line version ISSN 1996-7489
Print version ISSN 0038-2353


HURLEY, Brett P. et al. Fungus gnats and other Diptera in South African forestry nurseries and their possible association with the pitch canker fungus. S. Afr. j. sci. [online]. 2007, vol.103, n.1-2, pp.43-46. ISSN 1996-7489.

Fusarium circinatum is the causal agent of a serious disease of seedlings in South African pine nurseries. Insects, especially fungus gnats (Diptera: Sciaridae, Mycetophlidae), are suspected of transmitting this fungus in nurseries. The aim of this study was to ascertain which species of gnats are present in South African pine nurseries, and to consider whether these and other Diptera carry F. circinatum. Dipteran fauna were surveyed in four major forestry nurseries between 2000 and 2001. Fungi were isolated from these flies and the resulting Fusarium species were identified. Bradysia difformis was the only fungus gnat species found and it occurred in all nurseries. Other Dipteran families collected included Agromyzidae, Cecidomyiidae, Chironomidae, Ephydridae, Muscidae, Simulidae and Tachinidae. This is the first report of B. difformis in South Africa. Fusarium circinatum was not isolated from any of the Diptera collected. Fusarium oxysporum and F. stil-boides were isolated from Chironomidae, but these fungi are not considered important pathogens in the nurseries surveyed.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License