But if this becomes another welfare program like fighting forest fires,
guner/sybil...
and pray tell, inform us what this means, or I am more guessing you are absolutely incapable of such things than to put empty insinuations that you can't substantiate or prove, which ever you like.
The weeds as with every thing else in this country are here to stay. The U.S. doesn't have enough money to totally eradicate them, besides, those that pay for their experiences don't usually give a rats hooey what they bring in, no matter what the cost to others.
But to the topic, some thing I posted last year that I found, there is a business in Missoula that has a bug that really goes for knapweed. The article I read didn't say much about how fast the bug would work, but it is about the only thing around that will actually eat knapweed.
These are probably our best defenses against the really bad weeds because they are so persistent and cover such a huge area that it is cost prohibitive to go after them directly, even though they have done a major good job in the Big Hole Valley with some of their noxious weeds. I don't know if they were able to nip it in the bud before it got to bad, or they had a magic wand that worked.
The problem with dousing every thing with chemicals is that they have nothing that is absolutely host specific and does get some of the beneficials while in the process, I suppose one would have to weigh the bad and some what better issues with this problem and go accordingly.
I have noticed around here and some places I was walking thru West of Missoula last week was that places the knapweed had built up the soil some over the years by adding organic material was being reclaimed by other species.
The knapweed was still their, it just wasn't such a prevalent part of the landscape it once was. Some of the places I am talking about are places I once walked through as a child (Some 35 years ago), the fields at that time to my memory were nothing but this pest, it got down your shoes and stuck in your socks.
Maybe nature is learning to come into balance in some areas with some of these little nasties, I would suppose though a lot of areas would never be able to be rid of it because of the soil conditions this stuff will thrive in when others won't...