Distribution

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Extent

Invasive

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Host plants / species affected

Main hosts

List of symptoms / signs

Prevention and control

All imported shipments of aquatic plants, tropical fish and other similar products from infested countries should be closely examined for the presence of S. molesta. Since S. molesta reproduces vegetatively, even small undetected fragments are sufficient to permit an introduction into a new country. As with all noxious weeds, prevention is the most effective way to limit the spread of S. molesta. Production of S. molesta-free products (such as tropical fish and ornamental water plants) is the only sure way to prevent further global movement of this weed.

Chemical Control

Due to the variable regulations around (de-)registration of pesticides, we are for the moment not including any specific chemical control recommendations. For further information, we recommend you visit the following resources:

• EU pesticides database (http://ec.europa.eu/food/plant/pesticides/eu-pesticides-database/)
• PAN pesticide database (www.pesticideinfo.org)
• Your national pesticide guide