This pest risk analysis was initiated in response to an application to import Hydrocotyle batrachium from Thailand and Singapore into Argentina as a plant for use in aquariums.

Based on the assessment, the classification of Hydrocotyle batrachium as a quarantine pest for the COSAVE region cannot be justified. However, if an application is made to import H. batrachium, shipments should be accompanied by a Phytosanitary Certificate given that it is a regulated article. It is also suggested that a voluntary code of conduct be developed for the aquarium plant industry, to warn sellers and buyers that they should not allow the disposal of live plants in natural waters.