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Duffy, B. K., and D. E. Gardner. 1994. Locally established Botrytis fruit rot of Myrica faya, a noxious weed in Hawaii. Plant Disease 78:919-923.
ABSTRACT
Faya (Myrica faya) is an introduced weedy tree threatening native ecosystems in Hawaii. Classical biocontrol has been investigated for several years but has yielded few insect pests or pathogens, none of which currently offers control in the field. As an alternative, attention was recently given to identify locally established insect pests and pathogens. Botrytis cinerea causes widespread fruit rot and is the first pathogen reported from faya in its nonnative habitat. Infection of flowers and foliage is rarely observed. Fruit rot occurs on trees of all sizes in a variety of habitats throughout the Hawaiian range of faya. In 1992, over 49 and 51% of mature fruit at two sites were infected. Similar percentages of immature fruit were infected or infested with B. cinerea. Adults and fruit-feeding larvae of Amorbia emigratella and Cryptoblabes gnidiella collected from infected fruit clusters in the field were heavily infested with viable conidia and serve as vectors. Selection of more aggressive or ecologically fit strains or introduction of large numbers of Botrytis-infested vectors early in the fruiting season may enhance faya biocontrol.

FULL TEXT
Full text not available for this publication.

HOSTS
Firetree sp.
Myrica faya - Faya tree

PATHOGENS
Botrytis cinerea - Noble rot

RELEVANT TO BIOCONTROL
Yes.

KEY WORDS
Anemone, hupehensis, fungal vectors, Penicillum dendriticum, Styphelia tameiameiae, Vaccinium reticulatum,Weed biological control, Biocontrol, Myrica Faya, Firetree, Botrytis cinerea.

IMAGES
05_007 -- Botrytis on Myrica faya 05_007 - Botrytis on Myrica faya
PATHOGEN: Aspergillus melleus
09_027 -- Myrica sp. 09_027 - Myrica sp.
PATHOGEN: Aspergillus melleus
26_017 -- Botrytis cinerea on Myrica faya fruit in HAVO 26_017 - Botrytis cinerea on Myrica faya fruit in HAVO
PATHOGEN: Aspergillus melleus
26_018 -- Botrytis cinerea on Myrica faya fruit in HAVO 26_018 - Botrytis cinerea on Myrica faya fruit in HAVO
PATHOGEN: Aspergillus melleus
26_019 -- Botrytis cinerea on Myrica faya fruit in HAVO 26_019 - Botrytis cinerea on Myrica faya fruit in HAVO
PATHOGEN: Aspergillus melleus
26_020 -- Botrytis cinerea on Myrica faya fruit in HAVO 26_020 - Botrytis cinerea on Myrica faya fruit in HAVO
PATHOGEN: Aspergillus melleus
26_021 -- Botrytis cinerea on Myrica faya fruit in HAVO 26_021 - Botrytis cinerea on Myrica faya fruit in HAVO
PATHOGEN: Aspergillus melleus

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