yellow toadflax

Hello...wondered if anyone had experience with yellow toadflax?  I am starting with land that has been in conventional zero-till for many years and this practice has led to an increase in the weed in western canada.

the scale is about 20 acres...i am trying to establish perennial forages on most of it, and this year some is in rye/red clover and oats.  Thought the field was cleaner that it was. 

Any rotations / crops to suggest?  From what i've read it's going to overwhelm my grass.  It's still a bit patchy but really quite extensive, I am resigning myself to a week or two of hand pulling, but not sure if it's feasible.  Going to go out right now and see what kind of dent i can put in it in a half a day..

thanks so much for your thoughts...

Where I live it is classified as a noxious weed.

We have only the occasional plant on our place, but a neighboring field is infested with it, while a field directly across the road from the infested one is free of it. The difference appears to be irrigation and better soil - the toadflax seems to either prefer or be relegated to drier, more gravelly sites.

We are in southern Washington, so things may be different where you are.

Maybe you could experiment with a small area and see whether irrigation would help?