I also am battling bind weed. A few years ago I completely redid a bed in the fall which I intended to use for iris seedlings in the spring. It was empty except for weeds including lots of bind weed. In October I sprayed it with a strong mix of concentrated round-up mixed with some 2-4-D. 3 weeks later I sprayed it again. Spring came and it did not come back. In the fall bindweed is pulling energy down into the roots and pulls the Round-up down killing the roots. Used in the summer it just burns off the top and doesn't kills the roots. I've also had it in some Junipers in a parking strip. I have pulled it several times each summer and each year there has been less.; Persistent pulling will eventually get it but it takes forever. A few years ago the city did a beautification project down town and took out a water fountain. It lay on the side of the road for several days and so I brought it home and put it in the garden with a bird bath bowl on top. I took the bowl off to wash it and found the bowl of the fountain full of white bind weed that had grown up the center of the fountain. It is persistent.
