invasive alien species

Monday's side event at the SBSTTA meeting of the CBD by the pet industry gave an impressive insight how to deal with pets and ornamental plants becoming invasive: Simply tell consumers not to release them.
Or even better: put up posters in shops and print a line on the bag in which you buy your fish or pond plants and all will be solved.
Don't bother involving academics or even the governments - retailers are the best people to talk to consumers, and they are already used to put up posters and hand out flyers.