I don't know the ages of all the people on this thread that are posting and it really doesn't make any difference I suppose, but the USDA is responsible for bringing in many varieties of plants that are fluorishing in south Florida...Melaleuca, Australian Pine, and Brazilian Pepper to name three and I am sure there are more...
but the biggest one mistake the USDA made was bringing in Kudzoo to help with erosion....it sure helped with erosion but takes over everything in its path and even burning doesn't kill it all...
then there are the walkin' catfish...