The population of the United States skews strongly Americentric (and by Americentric I mean "North America where the U.S. is and occasionally something along the borders with Canada or Mexico"). While those of you in the U.S. might not hear much world news on your local 11pm TV news, you can rest assured that the ISW is constantly scouring the internet to provide you with a global education about invasive species.
With that in mind, check out this article from the Environment News Service, about invasive species in Brazil. It talks about several problem invasives in that country and briefly mentions the work of the Horus Institute. The ISW first posted about the Horus Institute back in January - it's nice to see it finally getting more international press coverage. And if Portuguese and Spanish are more your style than boring old English, check out this page of multinational invasive species resources, including a tri-lingual thesaurus.