EPPO Reporting Service - Lists of EPPO Standards - European and ...
EPPO Reporting Service - Lists of EPPO Standards - European and ... EPPO Reporting Service - Lists of EPPO Standards - European and ...
EPPO Reporting Service – Invasive Plants vigorously in flowing water. In Florida, the species has been reported as able to expand from 0.04 ha to 0.41 ha in one year. In which habitats In warmer climates, H. polysperma prefers flowing streams, but it may also be found in slow-moving waters and in lakes. According to the Corine Land Cover nomenclature, the following habitats are invaded: continental waters (water courses, water bodies), banks of continental water, Riverbanks/canalsides (dry river beds). Pathways Within the EPPO region, H. polysperma is imported for aquarium purposes in large quantities into various countries such as Austria, Estonia, France, Hungary, Latvia, the Netherlands and Switzerland. H. polysperma fragments very easily (vegetative reproduction), and these plant fragments can be spread by boats or wildlife. Impacts H. polysperma can out-shade other submersed plants, and is even reported to out-compete the very invasive Hydrilla verticillata (EPPO Alert List), as well as Ludwigia repens. It can occupy the entire water column and restricts light to other species, displacing native flora and fauna, and disrupting the aquatic ecosystem balance. Additionally, when large stands of H. polysperma die, their decomposition can create anoxic conditions resulting in fish death. Mats formed by the plant may also provide suitable breeding grounds for mosquitoes. H. polysperma clogs irrigation and flood-control canals, and interferes with water control pumping stations. It is also detrimental to navigation and recreational activities such as fishing and swimming. Control The species is considered to be difficult to control, even more so than Hydrilla verticillata. The use of mechanical harvesters further fragments the plant and favours its spread. Registered aquatic herbicides only marginally control H. polysperma. Endothal is the only active substance mentioned in the literature as having some efficacy against the plant. In the USA, this species is listed at the federal level as a noxious weed, and is regulated in many States. Considering the invasive behaviour of this species elsewhere in the world, it is considered that flowing freshwater bodies of the Mediterranean and temperate countries are at risk, and that the species should usefully be monitored, particularly in countries currently importing this species as an aquarium plant. H. polysperma is therefore added to the Alert List. Source: Commonwealth of Massachussets, Department of Conservation and Recreation (Undated) Eastern Indian Hygrophila: an exotic aquatic plant. 3 pp. http://www.mass.gov/dcr/waterSupply/lakepond/factsheet/Hygrophila.pdf Doyle RD, Francis MD, Smart RM (2003) Interferente competition between Ludwigia repens and Hygrophila polysperma: two morphologically similar aquatic plant species. Aquatic Botany 77, 223-234. Florida Exotic Pest Plant Council (Undated) Hygrophila polysperma. http://www.fleppc.org/ID_book/Hygrophila%20polysperma.pdf Global invasive species database (2009) Hygrophila polysperma. http://www.issg.org/database/species/ecology.asp?si=759&fr=1&sts=&lang=EN Mora-Olivo A, Daniel TF, Martínez M (2008) Hygrophila polysperma (Acanthaceae), una maleza aquática registrada por primera vez para la flora mexicana. Revista Mexicana de Biodiversidad 79, 265-269. http://www.ejournal.unam.mx/bio/BIOD79-01/BIO079000121.pdf 24
EPPO Reporting Service – Invasive Plants Mukherjee A, Cuda JP, Overholt WA (Undated) Predicting potential distribution of the invasive aquatic weed Hygrophila polysperma (Roxb.) T. Anders (Acanthaceae) using Maximum Entropy (MaxEnt) Modeling. http://cals.ufl.edu/graduate/pdfs/Abhishek%20Mukherjee%20Abstract.pdf Pacific Island Ecosystems at Risk (Undated) Hygrophila polysperma. http://www.hear.org/pier/species/hygrophila_polysperma.htm Sutton DL, Dingler PM (2000) Influence of sediment nutrients on growth of emergent Hygrophyla. Journal of Aquatic Plant Management 38, 55-61. http://www.apms.org/japm/vol38/v38p55.pdf Additional key words: invasive alien plants, alert list Computer codes: HYGPO 2010/023 Integrated Pest Management Education at the University of Minnesota (US) The Integrated Pest Management (IPM3) Education is an American consortium of federal agencies and land-grant institutions. This web-based platform provides training on pest management. Target audiences include federal agencies, state/local government officials, gardeners, crop consultants, pest management professionals, and anyone who has an interest in becoming proficient in Integrated Pest Management. These web based training sessions are widely open to participants within EPPO countries. Training sessions will be repeated several times throughout 2010. A core concept module provides courses on economic concepts, host plant resistance, biological, chemical, physical, cultural and regulatory controls. Specific modules will also be offered on invasive alien species, arthropod pest management and plant pathology. Source: University of Minnesota, Integrated Pest Management website: http://www.cce.umn.edu/Integrated-Pest-Management-Education/ Contact: ipm3@umn.edu Additional key words: invasive alien species, training 2010/024 Your input to the EPPO questionnaire on invasive alien plants in Mediterranean countries is needed In the framework of the organization of the 2nd Workshop on Invasive Alien Plants in Mediterranean Type Regions of the World, EPPO is launching a questionnaire to gather lists of invasive alien plants and eradication projects in the Mediterranean area. The conclusions will be shared during the workshop, and contributors will be acknowledged. The EPPO Secretariat has already received many valuable contributions from Mediterranean countries, but to make this survey as exhaustive as possible, we would welcome additional contributions, particularly from the southern side of the Mediterranean Sea. The questionnaire is available on the EPPO website and can be returned to the EPPO Secretariat until the 2010-02-15: http://archives.eppo.org/MEETINGS/2010_conferences/questionnaire_medit_invasive_plants_2009.xls Source: International Workshop on Invasive Plants in the Mediterranean Type Regions of the World, Trabzon, TR, 2010-08-02/06. http://archives.eppo.org/MEETINGS/2010_conferences/mediterranean_ias.htm Additional key words: invasive alien plants 25
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<strong>EPPO</strong> <strong>Reporting</strong> <strong>Service</strong> – Invasive Plants<br />
Mukherjee A, Cuda JP, Overholt WA (Undated) Predicting potential distribution <strong>of</strong><br />
the invasive aquatic weed Hygrophila polysperma (Roxb.) T. Anders<br />
(Acanthaceae) using Maximum Entropy (MaxEnt) Modeling.<br />
http://cals.ufl.edu/graduate/pdfs/Abhishek%20Mukherjee%20Abstract.pdf<br />
Pacific Isl<strong>and</strong> Ecosystems at Risk (Undated) Hygrophila polysperma.<br />
http://www.hear.org/pier/species/hygrophila_polysperma.htm<br />
Sutton DL, Dingler PM (2000) Influence <strong>of</strong> sediment nutrients on growth <strong>of</strong> emergent<br />
Hygrophyla. Journal <strong>of</strong> Aquatic Plant Management 38, 55-61.<br />
http://www.apms.org/japm/vol38/v38p55.pdf<br />
Additional key words: invasive alien plants, alert list Computer codes: HYGPO<br />
2010/023 Integrated Pest Management Education at the University <strong>of</strong> Minnesota<br />
(US)<br />
The Integrated Pest Management (IPM3) Education is an American consortium <strong>of</strong> federal<br />
agencies <strong>and</strong> l<strong>and</strong>-grant institutions. This web-based platform provides training on pest<br />
management. Target audiences include federal agencies, state/local government <strong>of</strong>ficials,<br />
gardeners, crop consultants, pest management pr<strong>of</strong>essionals, <strong>and</strong> anyone who has an<br />
interest in becoming pr<strong>of</strong>icient in Integrated Pest Management. These web based training<br />
sessions are widely open to participants within <strong>EPPO</strong> countries.<br />
Training sessions will be repeated several times throughout 2010. A core concept module<br />
provides courses on economic concepts, host plant resistance, biological, chemical,<br />
physical, cultural <strong>and</strong> regulatory controls. Specific modules will also be <strong>of</strong>fered on invasive<br />
alien species, arthropod pest management <strong>and</strong> plant pathology.<br />
Source: University <strong>of</strong> Minnesota, Integrated Pest Management website:<br />
http://www.cce.umn.edu/Integrated-Pest-Management-Education/<br />
Contact: ipm3@umn.edu<br />
Additional key words: invasive alien species, training<br />
2010/024 Your input to the <strong>EPPO</strong> questionnaire on invasive alien plants in<br />
Mediterranean countries is needed<br />
In the framework <strong>of</strong> the organization <strong>of</strong> the 2nd Workshop on Invasive Alien Plants in<br />
Mediterranean Type Regions <strong>of</strong> the World, <strong>EPPO</strong> is launching a questionnaire to gather lists<br />
<strong>of</strong> invasive alien plants <strong>and</strong> eradication projects in the Mediterranean area. The<br />
conclusions will be shared during the workshop, <strong>and</strong> contributors will be acknowledged.<br />
The <strong>EPPO</strong> Secretariat has already received many valuable contributions from<br />
Mediterranean countries, but to make this survey as exhaustive as possible, we would<br />
welcome additional contributions, particularly from the southern side <strong>of</strong> the Mediterranean<br />
Sea.<br />
The questionnaire is available on the <strong>EPPO</strong> website <strong>and</strong> can be returned to the <strong>EPPO</strong><br />
Secretariat until the 2010-02-15:<br />
http://archives.eppo.org/MEETINGS/2010_conferences/questionnaire_medit_invasive_plants_2009.xls<br />
Source: International Workshop on Invasive Plants in the Mediterranean Type Regions <strong>of</strong> the<br />
World, Trabzon, TR, 2010-08-02/06.<br />
http://archives.eppo.org/MEETINGS/2010_conferences/mediterranean_ias.htm<br />
Additional key words: invasive alien plants<br />
25
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