Seeds of Eichornia caused permanent damages in a Spanish river. The economical loses are over 25 million euro by now and increasing. This money was not spent to

Seeds of Eichornia caused permanent damages in a Spanish river. The economical loses are over 25 million euro by now and increasing. This money was not spent to erradicate it, just to control its propagation and trying to made the river navigable again. In USA, Kudzu causes economical damages estimated between 100 to >500 million dollars (each year).