Principal source:
Compiler: IUCN/SSC Invasive Species Specialist Group (ISSG) with support from the Terrestrial and Freshwater Biodiversity Information System (TFBIS) Programme (Copyright statement)
Review: Expert review underway: Heather A. Hager, Ph.D.
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Ecologist USA
Takashi Asaeda
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Department of Environmental Science
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Saitama University Japan
Publication date: 2006-04-03
Recommended citation: Global Invasive Species Database (2024) Species profile: Typha latifolia. Downloaded from http://iucngisd.org/gisd/speciesname/Typha+latifolia on 02-11-2024.
Mechanical: Mechanical removal of rhizomes is difficult because of their depth and volumn, however it can be used to reduce size of infestations and by following up with manual removal. The advantages of mechanical and manual removal are that no herbicide is used in water. Care should also be taken to ensure that the excavated material is taken away from the site and killed (DPIWE, 2005).
Exposure of rhizomes to frost by cultivation of the site is a good method when water levels are low (DPIWE, 2005).
Chemical: Treating typha when flowering using herbicides has been found to cause the greatest stress. The disadvantage however of using herbicides is the large volumn of decaying matter that remains which can cause water to go foul and unusable (DPIEW, 2005). Wick and spray applications of Roundup followed by with follow-up treatements has been found to be effective.
Treatment with herbicides like Dalpan followed up by respraying growing tips and making sure that the stems are submerged has been found to be successful. For more details of chemical control please see Motivans and Apfelbaum, 1987.
For more option is herbicide treatment please see Chemical control (DPIWE, 2005).