The problem isn’t that it might not work.
The problem is that it mightn’t work AND it’ll create a whole new set of problems.
See: cane toad in Queensland, AU.
See: rabbits/stoats, NZ
See: etc.
Dead lakes caused by the weed is a problem. The weevils might eat the weed (great!), but this group sounds like a bunch of chuckleheads, who mightn’t have done their research. So, there’s a pretty good chance they’re going to end up with weed-choked lakes AND weevils eating their corn crops, or some shit like that, AND the weevils won’t have any natural predators in that environment.
