Senecio madagascariensis
(Asteraceae)
fireweed
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Senecio madagascariensis
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| HEAR home > species info > plants > Senecio madagascariensis (Asteraceae) |
| Species description or overview | Taxonomy & nomenclature | Pest alerts | Impacts | Control methods | Biocontrol efforts |
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Fireweed (Senecio madagascariensis) is a daisy-like herb that grows upright and branched, up to 20 inches tall. Its yellow flowers each have 13 petals and look like small daisies about the size of a nickel which mature into white thistle balls.
Fireweed (Senecio madagascariensis) overview from the Hawaii Invasive Species Council (HISC).
Description, impacts, images, and distribution in Hawaii of fireweed are from HISC's high-profile invasive pests site.
Senecio madagascariensis information from PIER
Information on Senecio madagascariensis as relevant to Pacific Islands is provided by the Pacific Island Ecosystems at Risk project (PIER).
Fireweed "Weed of the Week" pest alert
Fireweed is the featured "Weed of the Week" on the radio program sponsored by Kauai Community Radio and the Kauai Invasive Species Committee (KISC). This pest alert is available on KISC's "Weed of the Week" site.
Fireweed (Senecio madagascariensis) overview from the Hawaii Invasive Species Council (HISC).
Description, impacts, images, and distribution in Hawaii of fireweed are from HISC's high-profile invasive pests site.
Fireweed (Senecio madagascariensis) overview from the Hawaii Invasive Species Council (HISC).
Description, impacts, images, and distribution in Hawaii of fireweed are from HISC's high-profile invasive pests site.
Senecio madagascariensis (Asteraceae): species information from GCW
Information on Senecio madagascariensis as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).
Biological fix for invasive species: State wants larvae to take bite out of fireweed
The release of the Secusio extensa moth as a biocontrol for fireweed may be the only reasonable management option to control this pasture pest (Maui News, 6/15/2008).
Fireweed biocontrol - 2006 report
Two of three promising fireweed biocontrol agents perished in captivity, according to this report from the Hawaii Department of Agriculture.
State wants to use invasives to kill invasives
The proposal to control fireweed with an African moth is discussed in a Malama Kauai article (5/12/2008).
Introductions for biological control in Hawaii 1997-2001
The introduction of 16 insect and five fungal species to control six weeds and four insect pests in Hawaii from 1997-2001 is discussed in a paper by the Hawaii Department of Agriculture (Proceedings Hawaiian Entomological Society, 2003).
Senecio madagascariensis as a weed in Hawaii
Information about Senecio madagascariensis as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).
Control of Madagascar ragwort (aka Madagascar fireweed, Senecio madagascariensis)
Cultural and chemical measures to control fireweed are discussed in a pest alert issued by the University of Hawaii and Hawaii Department of Agriculture (2004).
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).
Fireweed pretty, toxic
Fireweed's invasion of Maui's pastures is described in a Maui News editorial (4/2/2009).
Field release of Secusio extensa (Butler) (Lepidoptera: Arctiidae), for biological control of fireweed, Senecio madagascariensis Poiret (Asterales: Asteraceae), in Hawaii
The draft environmental assessment regarding biological control of fireweed was prepared by the Hawaii Department of Agriculture (January 2008).
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.
1-page info sheets
Fireweed (Senecio madagascariensis) pest alert flyer
Images of Senecio madagascariensis (Asteraceae) (fireweed)
Links to high-resolution free images of Senecio madagascariensis (Asteraceae) (fireweed) by Forest & Kim Starr (USGS) are available here.
Senecio madagascariensis information from the Smithsonian Flora of the Hawaiian Islands 
Information about Senecio madagascariensis in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.
Senecio madagascariensis images from PIER
Images of Senecio madagascariensis provided by the Pacific Island Ecosystems at Risk project (PIER).
Plants of Hawaii: Senecio madagascariensis -- MAPS
USDA/ITIS (http://www.itis.usda.gov/)
Fireweed - 2006 report
Fireweed infestations on the Islands of Kauai and Oahu are contained, according to this 2006 report from the Hawaii Department of Agriculture.
Senecio madagascariensis as a weed in Hawaii
Information about Senecio madagascariensis as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).
Fireweed (Senecio madagascariensis) overview from the Hawaii Invasive Species Council (HISC).
Description, impacts, images, and distribution in Hawaii of fireweed are from HISC's high-profile invasive pests site.
New plant records from East Maui for 1998
Eleven new species are reported for East Maui.
Biological fix for invasive species: State wants larvae to take bite out of fireweed
The release of the Secusio extensa moth as a biocontrol for fireweed may be the only reasonable management option to control this pasture pest (Maui News, 6/15/2008).
Biological fix for invasive species: State wants larvae to take bite out of fireweed
The potential for controlling fireweed in Hawaii by introducing the Secusio extensa moth is discussed in a Maui News article (6/15/2008).
Bugs readied for eco-battle
The erythrina gall wasp, nettle caterpillar, and Madagascar fireweed are Hawaii pests that may be combatted by biocontrol agents if Hawaii receives federal approval for their release (Honolulu Advertiser, 5/11/2008).
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.
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.
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| The content of this page is based on information last generated on 03 November 2009 by PT. The template for this page was created on 15 March 2004 by EMS, and was last updated on 20 February 2006 by PT. |
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