Hawaiian Ecosystems at Risk project (HEAR) Colletotrichum gloeosporioides f. sp. miconiae as a biocontrol agent
for Miconia calvescens in Hawaii

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Information and references regarding Colletotrichum gloeosporioides f. sp. miconiae as a biocontrol agent for Miconia calvescens in Hawaii are provided here. For further information, contact webmaster@hear.org.

Status of Colletotrichum gloeosporioides f. sp. miconiae as a biocontrol agent for Miconia calvescens in Hawaii

The fungus Colletotrichum gloeosporioides f. sp. miconiae from Brazil causes leaf spots on Miconia calvescens (miconia) resulting in leaf yellowing and premature defoliation. In laboratory conditions the fungal pathogen attacked germinating miconia seeds and newly emergent seedlings. Host range testing, concluded in November 1996, showed that this fungus was restricted in pathogenicity to the genus Miconia. Based on the host specificity tests, the fungus was subsequently described as f. sp. miconiae of Colletotrichum gloeosponoides. USDA APHIS PPQ approved the release of the pathogen in 1997, and it was released on the Big Island and on Maui that year. Attempts to establish the disease on Maui have failed (2002). The fungus requires rain and wind for spore dissemination and drought conditions may have limited its spread. In 2006, Colletotrichum gloeosporioides f. sp. miconiae continued to be active in the wet Onomea area of East Hawaii and may be keeping miconia plants from becoming the dominant vegetation in that locality. (info from http://hawaii.gov/hdoa/meetings_reports/legislative-reports/2007LegReports/AR06%20Program%20Section.pdf accessed 01OCT2009 & http://www.hear.org/bibliography/references/9445_killgore_2002/ & http://www.hear.org/bibliography/references/9459_culliney_2003/; info as of 2002 & 2006)

References for Colletotrichum gloeosporioides f. sp. miconiae as a biocontrol agent for Miconia calvescens in Hawaii

Biological control potential of Miconia calvescens using three fungal pathogens
Killgore, Eloise M. 2002. Biological control potential of Miconia calvescens using three fungal pathogens. pp. 45-52 in Smith, Clifford W., Julie Denslow, and Stephen Hight (eds). 2002. Proceedings of workshop on biological control of native ecosystems in Hawaii. Pacific Cooperative Studies Unit (University of Hawaii at Manoa, Department of Botany) Technical Report 129. 122 pages. from http://www.botany.hawaii.edu/faculty/duffy/techr/129.pdf accessed 16 March 2008. (http://www.hear.org/bibliography/references/9445_killgore_2002/)

Introductions for biological control in Hawaii 1997-2001
Culliney, Thomas W., Walter T. Nagamine, and Kenneth K. Teramoto. 2003. Introductions for biological control in Hawaii 1997-2001. Proc. Hawaiian Entomol. Soc. (2003) 36:145-153. (http://www.hear.org/bibliography/references/9459_culliney_2003/)

The Hawaiian Ecosystems at Risk (HEAR) project is currently funded by the Pacific Basin Information Node (PBIN) of the National Biological Information Infrastructure (NBII) through PIERC (USGS) with support from HCSU (UH Hilo). More details are available online. Pacific Basin Information Node (PBIN)National Biological Information Infrastructure (NBII)
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