Hawaiian Ecosystems at Risk project (HEAR)

Psidium guajava
(Myrtaceae)

common guava, guava

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Species description or overview Taxonomy & nomenclature Impacts Risk assessments Control methods
Pests of this species Videos Images Distribution Books
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Psidium guajava is native to tropical America. 


Species description or overview

Information about Psidium guajava from IUCN's ISSG/GISD
Information about Abelmoschus moschatus is available from the Global Invasive Species Database (GISD) (a product of IUCN's Invasive Species Specialist Group [ISSG]).

Psidium guajava information from CTAHR (Motooka et al.) View info about Adobe Acrobat PDF format
Information about Psidium guajava 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).

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

Psidium guajava description and ecology from GISD (ISSG)
A species description and information about the ecology of Psidium guajava 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).

Psidium guajava information from "Common forest trees of Hawaii" View info about Adobe Acrobat PDF format
Information about Psidium guajava is presented with respect to this species being a forest tree in Hawaii. The information on this site is from the U.S. Department of Agriculture's (USDA's) 1989 publication by Little and Skolmen entitled "Common forest trees of Hawaii (native and introduced)."

Psidium guajava information from NTBG
Information about Psidium guajava is available from the National Tropical Botanical Garden (NTBG).


Taxonomy & nomenclature

GRIN nomenclature info for Psidium guajava
Nomenclatural information about Psidium guajava is provided by USDA/ARS/NGRP/GRIN.

Psidium guajava information from the Smithsonian's Flora of the Hawaiian Islands
Information about Psidium guajava--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.

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

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


Impacts

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

Psidium guajava impact information from GISD (ISSG)
Impact information regarding Psidium guajava 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).


Risk assessments

Psidium guajava weed risk assessment for Hawaii-Pacific
Results of a weed risk assessment for Psidium guajava for the Hawaii-Pacific region are presented by the Hawaii-Pacific Weed Risk Assessment team.


Control methods

Psidium guajava information from CTAHR (Motooka et al.) View info about Adobe Acrobat PDF format
Information about Psidium guajava 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).

Psidium guajava management information from GISD (ISSG)
Management information for Psidium guajava 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).

Utilizing "Wet Blade" to control Rauvolfia vomitoria (video)
Imazapyr was best controlling both Rauvolfia vomitoria and guava after five months using the "Wet Blade" chemical delivery system to compare herbicides (YouTube video posted by James Leary of the University of Hawaii College of Tropical Agriculture and Human Resources, 11/24/2009).

Summaries of herbicide trials for pasture, range, and non-cropland weed control -1999 View info about Adobe Acrobat PDF format
Herbicide trials compare herbicides and methods of application on a variety of weedy species in Hawaii (University of Hawaii).

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.

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.


Videos

Utilizing "Wet Blade" to control Rauvolfia vomitoria (video)
Imazapyr was best controlling both Rauvolfia vomitoria and guava after five months using the "Wet Blade" chemical delivery system to compare herbicides (YouTube video posted by James Leary of the University of Hawaii College of Tropical Agriculture and Human Resources, 11/24/2009).


Images

Images of Psidium guajava (Myrtaceae) (guava)
Links to high-resolution free images of Psidium guajava (Myrtaceae) (guava) by Forest & Kim Starr (USGS) are available here.

Psidium guajava information from the Smithsonian Flora of the Hawaiian Islands
Information about Psidium guajava in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

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


Distribution

Psidium guajava information from the Smithsonian Flora of the Hawaiian Islands
Information about Psidium guajava in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Psidium guajava information from the Smithsonian's Flora of the Hawaiian Islands
Information about Psidium guajava--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.

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


Books

Weed handbook of Western Polynesia
Whistler, W. Arthur. 1983. Weed handbook of Western Polynesia. Eschborn: Deutsche Gesellschaft f#r Technische Zusammenarbeit (GTZ) GmbH. ISBN: 3-88085-227-8.

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.

A field guide to tropical and subtropical plants
Perry, Frances and Roy Hay. 1982. A field guide to tropical and subtropical plants. Ward Lock Limited, Great Britain. 136 pp. illus. ISBN: 0-442-26859-9.

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.


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.

Maui Offshore Islet Botanical Survey
Starr, F., K. Starr, and Wood K. 2006. Maui Offshore Islet Botanical Survey. Report prepared for State Department of Land and Natural Resources and the Offshore Islet Restoration Committee, Honolulu, Hawaii.

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.

Annotated bibliography of the genus Psidium, with emphasis on P. cattleianum (strawberry guava) and P. guajava (common guava), forest weeds in Hawai'i
Ellshoff, Zella E., Donald E. Gardner, Charles Wikler, and Clifford W. Smith. 1995. Annotated bibliography of the genus Psidium, with emphasis on P. cattleianum (strawberry guava) and P. guajava (common guava), forest weeds in Hawai'i. PCSU technical report 95 (May 1995). Honolulu: Cooperative National Park Resources Studies Unit, University of Hawai'i at Manoa.

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.

Annotated Checklist of the Vascular Plants on Midway Atoll, Hawaii.
Starr, F., K. Starr, and Loope L. 2006. Annotated Checklist of the Vascular Plants on Midway Atoll, Hawaii. An addendum to the 1999 Botanical Survey of Midway Atoll.

Status of Non-native Plants in the Northwestern Hawaiian Islands
Starr, F., K. Starr, and Loope L. 2001. Status of Non-native Plants in the Northwestern Hawaiian Islands. Poster presentation, 2001 Hawaii Conservation Conference (Hilo, Hawaii).

Botanical survey of Midway Atoll
Starr, F. and K. Martz. 1999. Botanical survey of Midway Atoll. In: 1995-1999 Baseline Surveys for Alien Species in Marine and Terrestrial Habitats on Midway Atoll National Wildlife Refuge. U.S. Fish and Wildlife Service, Honolulu, Hawaii.

Oahu Offshore Islets Botanical Survey
Starr, F. and K. Starr. 2006. Oahu Offshore Islets Botanical Survey. Report prepared for State Department of Land and Natural Resources and the Offshore Islet Restoration Committee, Honolulu, Hawaii.

Revised List of Hawaiian Names of Plants Native and Introduced with Brief Descriptions and Notes as to Occurrence and Medicinal or Other Values
Gon III, Samuel M. Ohukaniohia. 2008. Revised List of Hawaiian Names of Plants Native and Introduced with Brief Descriptions and Notes as to Occurrence and Medicinal or Other Values, by Joseph F. Rock Consulting Botanist, Board of Agriculture and Forestry Honolulu, Hawaii, 1920; transcribed and annotated by Samuel M. Ohukaniohia Gon III. Ethnobotany Research & Applications 6:405-442.

Proceedings of workshop on biological control of native ecosystems in Hawaii
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.

Forest pest biological control program in Hawaii
Smith, Clifford W. 2002. Forest pest biological control program in Hawaii. pp. 91-98 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.

Strawberry guava (Psidium cattleianum): prospects for biological control
Smith, Clifford W. and Charles Wikler. 2002. Strawberry guava (Psidium cattleianum): prospects for biological control. pp. 108-116 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.

Biological control of invasive plants in native Hawaiian ecosystems (synthesis and conclusions)
Smith, Clifford W., Julie Denslow, and Stephen Hight. 2002. Biological control of invasive plants in native Hawaiian ecosystems (synthesis and conclusions). pp. 117-122 in 2002. Smith, Clifford W., Julie Denslow, and Stephen Hight. pp. 117-122 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.


Experts

Psidium guajava contacts from GISD (ISSG)
Contact information for experts on Psidium guajava 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.)

Distribution and Spread of Alien Plants in Kipahulu Valley, Haleakala National Park, above 2,300 ft Elevation View info about Adobe Acrobat PDF format
A baseline survey based on a network of 20 transects and 400 plots provides information on alien plant distribution during feral pig removal and prior to alien plant control efforts in Kipahulu Valley, Maui (from Alien Plant Invasions in Native Ecosystems of Hawaii: Management and Research, 1992, 39 pp).

Psidium guajava references from GISD (ISSG)
References regarding Psidium guajava 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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