Pacific Pests, Pathogens & Weeds - Mini Fact Sheet EditionCocoa brown root rot (003)
Pacific Pests, Pathogens & Weeds - Mini Fact Sheet EditionCocoa brown root rot (003)
Summary
- Worldwide distribution. In the tropics. The fungus has a wide host range, attacking native and exotic forest trees, plamntation crops, including cocoa (and shade trees), oil palm, rubber, coffee. Attacks breadfruit (Pingelap disease). An important disease.
- Spores of the fungus infect tree stumps as land is cleared. The fungus travels along the roots to healthy trees, growing up to 1 m on the trunk as a thick brown crust, causing death. Brackets form on the old tree stumps 3-4 years after infection.
- Cultural control: survey plantations 6-monthly for brackets on stumps, and crusts on trunks; if seen, remove with all roots over 2.5 cm diameter.
- Chemical control: none recommended.
Common Name
Brown root rot
Scientific Name
Phellinus noxius
AUTHORS Helen Tsatsia & Grahame Jackson
Diagram APSnet Education Center. Brown root rot. The American Phytopathological Society. (http://www.apsnet.org/edcenter/intropp/lessons/fungi/Basidiomycetes/Pages/BrownRootRot.aspx).
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.
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