Hawaiian Ecosystems at Risk project (HEAR)

Syzygium jambos
(Myrtaceae)

Malabar plum, jambos, malabar plum, rose apple

 
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Syzygium jambos is native to Malaysia. 


Species description or overview

Syzygium jambos information from CTAHR (Motooka et al.) View info about Adobe Acrobat PDF format
Information about Syzygium jambos from "Weeds of Hawaii's pastures and natural areas: an identification and management guide" (Motooka et al. 2003) is provided by the University of Hawaii's College of Tropical Agriculture and Human Resources (CTAHR).

Syzygium jambos information from PIER
Information on Syzygium jambos as relevant to Pacific Islands is provided by the Pacific Island Ecosystems at Risk project (PIER).

Syzygium jambos description and ecology from GISD (ISSG)
A species description and information about the ecology of Syzygium jambos as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).

Syzygium jambos information from NTBG
Information about Syzygium jambos is available from the National Tropical Botanical Garden (NTBG).


Taxonomy & nomenclature

GRIN nomenclature info for Syzygium jambos
Nomenclatural information about Syzygium jambos is provided by USDA/ARS/NGRP/GRIN.

Syzygium jambos information from the Smithsonian's Flora of the Hawaiian Islands
Information about Syzygium jambos--including nomenclature and synonymy, and status and distribution in Hawaii--is provided by the "Flora of the Hawaiian Islands" website of the Smithsonian National Museum of Natural History. Links from this page include descriptive information about the species, as well as worldwide distributional information and general information about the genus.

Syzygium jambos information from ITIS
The Integrated Taxonomic Information System ITIS provides authoritative taxonomic information on Syzygium jambos, as well as other plants, animals, fungi, and microbes of North America and the world.

IPNI nomenclature info for Syzygium jambos
Nomenclatural information about Syzygium jambos is provided by The International Plant Names Index (IPNI).


Impacts

Syzygium jambos (Myrtaceae): species information from GCW
Information on Syzygium jambos as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).

Syzygium jambos impact information from GISD (ISSG)
Impact information regarding Syzygium jambos as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Control methods

Syzygium jambos information from CTAHR (Motooka et al.) View info about Adobe Acrobat PDF format
Information about Syzygium jambos from "Weeds of Hawaii's pastures and natural areas: an identification and management guide" (Motooka et al. 2003) is provided by the University of Hawaii's College of Tropical Agriculture and Human Resources (CTAHR).

Syzygium jambos management information from GISD (ISSG)
Management information for Syzygium jambos as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).

Herbicidal weed control methods for pastures and natural areas of Hawaii View info about Adobe Acrobat PDF format
This comprehensive review of herbicide application methods includes calculations for formulations, and appendices listing herbicides registered for use in Hawaii and their toxicities (University of Hawaii, 2002).


Pests of this species

Ohia rust pest advisory (HDOA) View info about Adobe Acrobat PDF format
A "new pest advisory" RE: ohia rust (Puccinia psidii), a rust which which affects the native Hawaiian forest tree ohia (Metrosideros polymorpha) and many other species in the myrtle family (Myrtaceae), was issued by the Hawaii Department of Agriculture. This rust has wide host range including eucalyptus, paperbark tree, guava, rose apple, allspice, jaboticaba, Surinam cherry, species of Eugenia, and others in the family Myrtaceae. In other parts of the world, the rust is referred to as eucalyptus rust or guava rust.

Disease index for the rust Puccinia psidii on rose apple in Hawaii View info about Adobe Acrobat PDF format
Illustrations help define the categories for this disease index and a field survey form is available for reporting Puccinia psidii rust disease (University of Hawaii).

Disease index for the rust Puccinia psidii on ohia (Metrosideros polymorpha) in Hawaii View info about Adobe Acrobat PDF format
Illustrations help define the categories for this disease index for ohia rust and a field survey form is available for reporting Puccinia psidii rust disease (University of Hawaii).

An analysis of the risk of introduction of additional strains of the rust Puccinia psidii Winter (ohia rust) to Hawaii View info about Adobe Acrobat PDF format
This 2008 analysis of the risk of introduction of additional strains of the rust Puccinia psidii to Hawaii provided a basis for Hawaii Department of Agriculture's interim rule regulating importation of plant in the myrtle family, in place for 12 months after its enactment on August 28, 2007.

Rust ruins rose apple; guardians fear for ohia
The importance of the threat of the so-called "ohia rust" to the future of Hawaii's native forest is highlighted in this December 2008 Maui News article written by Dr. Lloyd Loope for the Maui Invasive Species Committee's series "Kiai Moku" ("guarding the island").


Images

Rose apple (Syzigium jambos) on Maui infected with the rust Puccinia psidii
Images of rose apple (Syzigium jambos) on Maui infected with the rust Puccinia psidii are presented online by Maui photographer Philip Thomas, and are freely available for noncommercial use.

Images of Syzygium jambos (Myrtaceae) (rose apple)
Links to high-resolution free images of Syzygium jambos (Myrtaceae) (rose apple) by Forest & Kim Starr (USGS) are available here.

Syzygium jambos information from the Smithsonian Flora of the Hawaiian Islands
Information about Syzygium jambos in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Disease index for the rust Puccinia psidii on rose apple in Hawaii View info about Adobe Acrobat PDF format
Illustrations help define the categories for this disease index and a field survey form is available for reporting Puccinia psidii rust disease (University of Hawaii).

Syzygium jambos images from PIER
Images of Syzygium jambos provided by the Pacific Island Ecosystems at Risk project (PIER).


Distribution

Syzygium jambos information from the Smithsonian Flora of the Hawaiian Islands
Information about Syzygium jambos in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Syzygium jambos information from the Smithsonian's Flora of the Hawaiian Islands
Information about Syzygium jambos--including nomenclature and synonymy, and status and distribution in Hawaii--is provided by the "Flora of the Hawaiian Islands" website of the Smithsonian National Museum of Natural History. Links from this page include descriptive information about the species, as well as worldwide distributional information and general information about the genus.

Invasive species in the Pacific: A technical review and draft regional strategy (2000) View info about Adobe Acrobat PDF format
The status of invasive plants, vertebrates, arthropods, molluscs, and crustaceans, and options for a regional invasive species strategy for the South Pacific are presented in this series of articles from the South Pacific Regional Environment Programme, 2000.

Syzygium jambos worldwide distribution from GISD (ISSG)
Worldwide distribution information about Syzygium jambos is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Books

Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives)
Veitch, C.R. and M.N. Clout (eds.) . 2002. Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives). IUCN SSC Invasive Species Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK. vii + 414pp. ISBN: 2-8317-0682-3.

Weeds of Hawaii's Pastures and Natural Areas: An Identification and Management Guide
Motooka, Philip, Luisa Castro, Duane Nelson, Guy Nagai, and Lincoln Ching. 2003. Weeds of Hawaii's Pastures and Natural Areas: An Identification and Management Guide. College of Tropical Agriculture and Human Resources (University of Hawaii--Manoa), Honolulu. 184 pp. color illus. ISBN: 1-929325-14-2.

Identification and biology of nonnative plants in Florida's natural areas (second edition)
Langeland, K.A., H.M. Cherry, C.M. McCormick, and K.A. Craddock Burks. 2008. Identification and biology of nonnative plants in Florida's natural areas (second edition). The University of Florida IFAS Communication Services (Gainesville). 193+ pp. illus. ISBN: 978-0-916287-70-2.


In the news

Rust ruins rose apple; guardians fear for ohia View info about Adobe Acrobat PDF format
USGS scientist Lloyd Loope discusses the potential impacts of the pathogen Puccinia psidii on Hawaii's native forests. He says: "Enforcement of stringent Hawaii quarantine regulations would seem to provide the only effective means of protecting our ohia forest. If we lose ohia, we lose our forest."

Rust ruins rose apple; guardians fear for ohia
The importance of the threat of the so-called "ohia rust" to the future of Hawaii's native forest is highlighted in this December 2008 Maui News article written by Dr. Lloyd Loope for the Maui Invasive Species Committee's series "Kiai Moku" ("guarding the island").

Trees dying off (Star Bulletin 8/24/2008)
A virulent fungus killing rose apple trees on Oahu may spread to ohia trees and other vulnerable native plants.


Full-text articles

Alien plant invasions in native ecosystems of Hawaii: Management and research
Stone, Charles P., Clifford W. Smith, and J. Timothy Tunison (eds.) . 1992. Alien plant invasions in native ecosystems of Hawaii: Management and research. Honolulu: University of Hawaii Cooperative National Park Resources Studies Unit. ISBN: 0-8248-1474-6.

Invasive species in the Pacific: A technical review and draft regional strategy
South Pacific Regional Environmental Programme (SPREP). Sherley, Greg (ed.) . 2000. Invasive species in the Pacific: A technical review and draft regional strategy. Apia, Samoa: South Pacific Regional Environment Programme. ISBN: 982-04-0214-X.

Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives)
Veitch, C.R. and M.N. Clout (eds.) . 2002. Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives). IUCN SSC Invasive Species Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK. vii + 414pp. ISBN: 2-8317-0682-3.

Weeds of Hawaii's Pastures and Natural Areas: An Identification and Management Guide
Motooka, Philip, Luisa Castro, Duane Nelson, Guy Nagai, and Lincoln Ching. 2003. Weeds of Hawaii's Pastures and Natural Areas: An Identification and Management Guide. College of Tropical Agriculture and Human Resources (University of Hawaii--Manoa), Honolulu. 184 pp. color illus. ISBN: 1-929325-14-2.

Assessing the risks of plant invasions arising from collections in tropical botanical gardens
Dawson, Wayne, Ahmed S. Mndolwa, David F. R. P. Burslem, and Philip E. Hulme. 2008. Assessing the risks of plant invasions arising from collections in tropical botanical gardens. Biodiversity Conservation. Springer Science+Business Media B.V. 2008.

Disease index for the rust Puccinia psidii on ohia (Metrosideros polymorpha) in Hawaii
Uchida, Janice Y., Robert C. Anderson, Chris Y. Kadooka, Anne Marie LaRosa, and Cheresa Coles. 2008. Disease index for the rust Puccinia psidii on ohia (Metrosideros polymorpha) in Hawaii. CTAHR Plant Disease publication PD-38, Feb. 2008. College of Tropical Agriculture and Human Resources (CTAHR). Honolulu. 16 pp. illus.

Disease index for the rust Puccinia psidii on rose apple in Hawaii
Anderson, Robert C. and Janet Y. Uchida. 2008. Disease index for the rust Puccinia psidii on rose apple in Hawaii. CTAHR Plant Disease publication PD-38, Feb. 2008. College of Tropical Agriculture and Human Resources (CTAHR). Honolulu. 12 pp. illus.

Control of non-native plants in natural areas of Florida
Langeland, K.A. and R.L. Stocker. (1997-)2001. Control of non-native plants in natural areas of Florida. SP 242, one of a series of the Department of Agronomy, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First printed: 1997. Revised: April, 2001.

Phenology, reproductive potential, seed dispersal and predation, and seedling establishment of three invasive plant species in a Hawaiian rain forest
Medeiros, A.C. 2004. Phenology, reproductive potential, seed dispersal and predation, and seedling establishment of three invasive plant species in a Hawaiian rain forest. Ph.D. Dissertation, Department of Zoology, University of Hawaii at Manoa, Honolulu.


Experts

Syzygium jambos contacts from GISD (ISSG)
Contact information for experts on Syzygium jambos as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Other resources

Phenology, reproductive potential, seed dispersal and predation, and seedling establishment of three invasive plant species in a Hawaiian rain forest
After rain forest of Haleakala National Park was fenced in the late 1980s, native vegetation responded vigorously yet three problematic plant invaders (Clidemia hirta, Hedychium gardnerianum, and Psidium cattleianum) continued to spread unabated and became of great concern to Park managers. This contribution provides a quantitative assessment of crucial life history junctures (quantitative phenology, reproductive potential, seed dispersal, seed predation, seedling establishment) to assist Haleakala NP and other managers of Hawaiian rain forests. It also provides detailed information for potentially identifying key characteristics in prevention, rapid response, and prioritization of incoming invasive species. (This document is the 2004 Ph.D. dissertation of Dr. Arthur C. Medeiros for the Department of Zoology at the University of Hawaii.)

Syzygium jambos references from GISD (ISSG)
References regarding Syzygium jambos as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


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