Gardner, D. E., and C. S. Hodges, Jr., 1993. Biocontrol of Myrica faya in Hawaii: Investigation of pathogens from the Azores, Madeira and Canary Islands. Abstracts of the 1st Symposium on Fauna & Flora of the Atlantic Islands; October 4-9, Funchal, Madeira, Portugal. P 25.
ABSTRACT
Myrica faya Ait. was introduced to Hawaii during the late 1800s by immigrants from the Azores and Madeira and has become an aggressive invader to native habitats. Exploration for biocontrol agents started in the mid 1950s. Diseases found both in earlier investigations and current work include a twig dieback caused by Dothiorella sp, possibly D. vulgaris de Trav., twig dieback and leaf spots caused by Ramularia destructiva Phil. & Plowr., and cankers caused by Nectria galligena Bres. And Cryphonectria sp.. Although probably not useful in biocontrol, the cosmopolitan root-rotting fungus of Armillaria mellea (Vahl: Fr.) Quel., was found for the first time on M. faya on the Azores island of Pico on a single declining tree. Leaf spots caused by Septoria sp. from M. cerifera L. in the U.S. may also attack M. faya. Evaluation of the biocontrol potential of the host-specific pathogens is in progress under quarantine in Hawaii.
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