No easy solution except persistent hard work to get it under control, then constant vigilance. Found you an article all about it!

 

There is no easy remedy or quick cure. It may take two or three years of work, but it is worth the time and the effort. The first line of defense is herbicides. Round-up and broadleaf weed killers are the best. These sprays are most effective in the early spring and in the fall. Field bindweed is also susceptible just as it begins to flower. Apply these products according to label instructions.

 

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