Psidium cattleianum
(Myrtaceae)
Cattley guava, Chinese guava, cherry guava, purple guava, small guava, strawberry guava
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Psidium cattleianum
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| HEAR home > species info > plants > Psidium cattleianum (Myrtaceae) |
Importing safe insects the only hope of saving Maui's native koa forests
Maui botanist Art Medeiros supports the introduction of the scale insect for strawberry guava biological control. His arguments are expressed in this Viewpoints article (Maui News, 11/2/2008).
Strawberry guava sows seeds of infestation
Strawberry guava's threat to our forests is the topic of the Maui Invasive Species Committee (MISC) Kiai Moku Maui News column (9/14/2008).
Controversy flares over proposal to control waiawi [strawberry guava] with scale insect
"The proposed release of a scale insect to control strawberry guava, or waiawi (Psidium cattleianum), has sparked an outcry of opposition among some sectors of the public. Yet, although the opposition means a delay in the scheduled release, the scientists most closely involved with the project say they welcome the development as an opportunity to educate the public about what they do and the ways in which their plan can work to the state's benefit."
Native Hawaiian forests vs. strawberry guava (video) 
This video explains why strawberry guava (waiawi) is such a threat to native Hawaiian forests, and why Tectococcus ovatus is part of a solution to this problem.
Fact and fiction about waiawi [strawberry guava] control
"Opponents of the planned introduction of a biocontrol agent for strawberry guava have raised several arguments. Here are the top concerns, along with the responses from scientists with the Forest Service, the USDA Agricultural Research Service, and others...."
Strawberry guava: Not all green is good
The impacts of strawberry guava on Hawaii's native forest, images, and frequently asked questions are presented by the Institute of Pacific Islands Forestry.
Psidium cattleianum information from PIER
Information on Psidium cattleianum as relevant to Pacific Islands is provided by the Pacific Island Ecosystems at Risk project (PIER).
Psidium cattleianum description and ecology from GISD (ISSG)
A species description and information about the ecology of Psidium cattleianum 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).
Strawberry guava (Psidium cattleianum) fact sheet
Strawberry guava (Psidium cattleianum) description, habitat, biology, and management options are provided by Plant Conservation Alliance's Alien Plant Working Group.
Psidium cattleianum as a weed in Hawaii
Information about Psidium cattleianum as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).
Strawberry guava: Not all green is good
The impacts of strawberry guava on Hawaii's native forest, images, and frequently asked questions are presented by the Institute of Pacific Islands Forestry.
Population biology and management of the feral pig (Sus scrofa L.) in Kipahulu Valley, Maui
Cheong H. Diong's doctoral dissertation on the feral pig also includes important information about strawberry guava as an invasive species on Maui (1982).
History of feral pigs in Kipahulu Valley: Chapter 4 from "Population biology and management of the feral pig (Sus scrofa L.) in Kipahulu Valley, Maui, Hawaii"
The history of the feral pig invasion of Kipahulu Valley is discussed in this section of Cheong H. Diong's doctoral dissertation on feral pigs in Kipahulu Valley, Maui (University of Hawaii, 1982). Diong's complete dissertation is available online.
Food and feeding habits of feral pigs: Chapter 6 from "Population biology and management of the feral pig (Sus scrofa L.) in Kipahulu Valley, Maui, Hawaii"
Stomach contents were analyzed to determine the feeding habits of feral pigs in Kipahulu Valley in this section of Cheong H. Diong's doctoral dissertation (University of Hawaii, 1982). Diong's complete dissertation is available online.
General discussion: Chapter 13 from "Population biology and management of the feral pig (Sus scrofa L.) in Kipahulu Valley, Maui, Hawaii"
Factors affecting the ecology of feral pigs in Kipahulu Valley are discussed in this section of Cheong H. Diong's doctoral dissertation (University of Hawaii, 1982). Diong's complete dissertation is available online.
Psidium cattleianum (Myrtaceae): species information from GCW
Information on Psidium cattleianum as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).
Psidium cattleianum impact information from GISD (ISSG)
Impact information regarding Psidium cattleianum 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 cattleianum as a weed in Hawaii
Information about Psidium cattleianum as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).
Biological control of strawberry guava in Hawaii
Information about strawberry guava, the threat it poses to native forests, and the proposal to manage the invasive tree using biological control are presented by the Institute of Pacific Islands Forestry.
Psidium cattleianum management information from GISD (ISSG)
Management information for Psidium cattleianum 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).
Summaries of herbicide trials for pasture, range,
and non-cropland weed control -1999
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
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).
Psidium cattleianum (strawberry guava, waiawi): biocontrol efforts
Biological control efforts are documented for strawberry guava (aka "waiawi" in Hawaii) (Psidium cattleianum) by the Hawaiian Ecosystems at Risk project (HEAR).
Bugs could slow strawberry guava
"Bugs could slow strawberry guava" discusses the possibility of releasing a biocontrol agent (Tectococcus ovatus) in Hawaii to slow the spread of the invasive strawberry guava (Psidium cattleianum). Strawberry guava trees threaten the existence of many native ecosystems in Hawaii.
Biological control of strawberry guava in Hawaii
Information about strawberry guava, the threat it poses to native forests, and the proposal to manage the invasive tree using biological control are presented by the Institute of Pacific Islands Forestry.
Host specificity of Tectococcus ovatus (Hemiptera: Eriococcidae), a potential biological control agent of the invasive strawberry guava, Psidium cattleianum (Myrtales: Myrtaceae), in Florida
"In total, 57 plant species representing 21 families were included in the host range tests.... The results of the host specificity tests suggest that [Tectococcus] ovatus is a suitable candidate for classical biological control of strawberry guava in Florida."
Tectococcus ovatus (a type of scale): species information from HEAR
Categorized information about Tectococcus ovatus (a type of scale) is presented by the Hawaiian Ecosystems at Risk project (HEAR).
Native Hawaiian forests vs. strawberry guava (video)
This video explains why strawberry guava (waiawi) is such a threat to native Hawaiian forests, and why Tectococcus ovatus is part of a solution to this problem.
The Environmental Notice, State of Hawaii, 4/23/2008
Notices of proposals to release biocontrol agents for invasive pests appear in Hawaii's Office of Environmental
Quality Control bulletin pursuant to Section 343-3 Hawaii Revised Statutes.
Preliminary exploration for potential biological control agents for Psidium cattleianum.
Biocontrols of strawberry guava were sought in an exploratory trip to Brazil in 1988 (National Park Service, University of Hawaii).
Proceedings of workshop on biological control of native ecosystems in Hawaii (2000)
Potential and existing biocontrols of invasive pests in Hawaii, the review and permitting process, and synthesis are presented (Pacific Cooperative Studies Unit, University of Hawaii, Botany Department).
Insect released proposed to control exotic strawberry guava
"U.S. Forest Service scientists with the Institute of Pacific Islands Forestry have submitted a proposal to release a Brazilian insect to control the spread of strawberry guava, a South American tree that has invaded and degraded native Hawaiian ecosystems since it was introduced in 1825 as a garden plant."
Biocontrol: Protection on a large scale, for the long run
An overview of biocontrol, multimedia gallery, and proposed strawberry guava biocontrol plan are presented by the Institute of Pacific Islands Forestry.
Petition for field release of Tectococcus ovatus (Homoptera: Eriococcidae)
for classical biological control of strawberry guava, Psidium cattleianum Sabine
(Myrtaceae), in Hawaii (10 May 2005)
"Tectococcus ovatus is proposed for release into the environment for biological control of P[sidium] cattleianum in the state of Hawaii. This highly specific insect produces leaf galls on P. cattleianum in its native range in Brazil. It is expected to reduce growth and reproduction of P. cattleianum, thereby limiting spread of the weed and production of fruits available to pest fruit flies...."
Controversy flares over proposal to control waiawi [strawberry guava] with scale insect
"The proposed release of a scale insect to control strawberry guava, or waiawi (Psidium cattleianum), has sparked an outcry of opposition among some sectors of the public. Yet, although the opposition means a delay in the scheduled release, the scientists most closely involved with the project say they welcome the development as an opportunity to educate the public about what they do and the ways in which their plan can work to the state's benefit."
Biocontrol precision is weapon against invaders
Strawberry guava and biocontrol issues are reviewed in this second of a two part series from the Kiai Moku column of the Maui News (Lloyd Loope, 10/12/2008).
Current researches of Brazilian weeds in Paraná State - Biological control of weeds program, Curitiba, Paraná, Brazil
A review of the biological control program at Federal University of Paraná, Curitiba, Brazil, is presented.
Images of Psidium cattleianum (Myrtaceae) (strawberry guava)
Links to high-resolution free images of Psidium cattleianum (Myrtaceae) (strawberry guava) by Forest & Kim Starr (USGS) are available here.
Psidium cattleianum information from the Smithsonian Flora of the Hawaiian Islands 
Information about Psidium cattleianum in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.
Insect released proposed to control exotic strawberry guava
"U.S. Forest Service scientists with the Institute of Pacific Islands Forestry have submitted a proposal to release a Brazilian insect to control the spread of strawberry guava, a South American tree that has invaded and degraded native Hawaiian ecosystems since it was introduced in 1825 as a garden plant."
Psidium cattleianum images from PIER
Images of Psidium cattleianum provided by the Pacific Island Ecosystems at Risk project (PIER).
Invasive species in the Pacific: A technical review
and draft regional strategy (2000)
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 cattleianum as a weed in Hawaii
Information about Psidium cattleianum as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).
History of feral pigs in Kipahulu Valley: Chapter 4 from "Population biology and management of the feral pig (Sus scrofa L.) in Kipahulu Valley, Maui, Hawaii"
The history of the feral pig invasion of Kipahulu Valley is discussed in this section of Cheong H. Diong's doctoral dissertation on feral pigs in Kipahulu Valley, Maui (University of Hawaii, 1982). Diong's complete dissertation is available online.
Psidium cattleianum worldwide distribution from GISD (ISSG)
Worldwide distribution information about Psidium cattleianum is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).
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.
OHA to support waiawi control
The Office of Hawaiian Affairs is set to endorse a plan to release alien insects on the Big Island to control strawberry guava, as it acknowledges that some Native Hawaiians are opposed to doing so (West Hawaii Today, 10/16/2008).
Biocontrol precision is weapon against invaders
Strawberry guava and biocontrol issues are reviewed in this second of a two part series from the Kiai Moku column of the Maui News (Lloyd Loope, 10/12/2008).
Strawberry guava sows seeds of infestation
Strawberry guava's threat to our forests is the topic of the Maui Invasive Species Committee (MISC) Kiai Moku Maui News column (9/14/2008).
The Nature Conservancy tests 'revolutionary' new technology to protect native forests
New remote sensing technology using multi-spectral imaging will let conservation officials sit at computer screens and recognize the major weeds on their properties. Australian tree fern, miconia or strawberry guava plants can be located in remote forested areas, according to tests from TNC on Kauai (TNC, 7/29/2008).
Strawberry guava biocontrol possible
The proposal to release a scale insect as a biocontrol for strawberry guava in Hawaii is discussed in the Raising Islands blog by Jan TenBruggencate (7/12/2008).
Controversy flares over proposal to control waiawi [strawberry guava] with scale insect
"The proposed release of a scale insect to control strawberry guava, or waiawi (Psidium cattleianum), has sparked an outcry of opposition among some sectors of the public. Yet, although the opposition means a delay in the scheduled release, the scientists most closely involved with the project say they welcome the development as an opportunity to educate the public about what they do and the ways in which their plan can work to the state's benefit."
Fact and fiction about waiawi [strawberry guava] control
"Opponents of the planned introduction of a biocontrol agent for strawberry guava have raised several arguments. Here are the top concerns, along with the responses from scientists with the Forest Service, the USDA Agricultural Research Service, and others...."
Insect release proposed to control exotic strawberry guava
"U.S. Forest Service scientists with the Institute of Pacific Islands Forestry have submitted a proposal to release a Brazilian insect to control the spread of strawberry guava, a South American tree that has invaded and degraded native Hawaiían ecosystems since it was introduced in 1825 as a garden plant."
Self-feeding as a bad thing (Raising Islands Blog, 22 August 2007)
Invasive species like firetree (Myrica faya) and albizia Falcataria moluccana, which fix their own nitrogen, alter the characteristics of whole ecosystems. Bloggist Jan TenBruggencate reviews research on how "self-feeders" can facilitate the invasion of other alien species.
Bugs could slow strawberry guava
"Bugs could slow strawberry guava" discusses the possibility of releasing a biocontrol agent (Tectococcus ovatus) in Hawaii to slow the spread of the invasive strawberry guava (Psidium cattleianum). Strawberry guava trees threaten the existence of many native ecosystems in Hawaii.
Dispersal ecology of the strawberry guava: Chapter 7 from "Population biology and management of the feral pig (Sus scrofa L.) in Kipahulu Valley, Maui, Hawaii"
The synergy between feral pigs and strawberry guava (Psidium cattleianum) is revealed in research on the dispersal mechanisms of strawberry guava in this section of Cheong H. Diong's doctoral dissertation (University of Hawaii, 1982). Diong's complete dissertation is available online.
A test of four herbicides for use on strawberry guava (Psidium cattleianum Sabine) in Kipahulu Valley, Haleakala National Park
Pratt, Linda W., Gregory L. Santos, and Charles P. Stone. 1994. A test of four herbicides for use on strawberry guava (Psidium cattleianum Sabine) in Kipahulu Valley, Haleakala National Park. Technical report 90. Honolulu: Cooperative National Park Resources Studies Unit, University of Hawai'i at Manoa.
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.
A test of four herbicides for use on strawberry guava (Psidium cattleianum Sabine) in Kipahulu Valley, Haleakala National Park
Pratt, L.W., G.L. Santos, and C.P. Stone. 1994. A test of four herbicides for use on strawberry guava (Psidium cattleianum Sabine) in Kipahulu Valley, Haleakala National Park. PCSU technical report #90 (June 1994).
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.
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.
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.
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.
Biological control potential of Miconia calvescens using three fungal pathogens
Killgore, Eloise M. 2002. Biological control potential of Miconia calvescens using three fungal pathogens. pp. 45-52 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.
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.
Introductions for biological control in Hawaii 1997-2001
Culliney, Thomas W., Walter T. Nagamine, and Kenneth K. Teramoto. 2003. Introductions for biological control in Hawaii 1997-2001. Proc. Hawaiian Entomol. Soc. (2003) 36:145-153.
Current researches of Brazilian weeds in Paraná State - Biological control of weeds program, Curitiba, Paraná, Brazil
A review of the biological control program at Federal University of Paraná, Curitiba, Brazil, is presented.
Psidium cattleianum references from GISD (ISSG)
References regarding Psidium cattleianum 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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