Picture posting is enabled for all :)
Another meathod to get rid of bindweed that worked for me was to place canes next to the bindweed as it came up, to let it climb up away from your crop, then when you want to kill it apply glyphosate to the plant by wrapping an old piece of polythene tight at the bottom, and open like a funnel at the top. You then spray into the enclosed area which stops any damage to your crop, and uses less glyphosate, as it is only directed at the problem plant. Most agricultural merchants sell glyphosate under various trade names, Roundup being the most expensive, but no more effective than lesser known brands.Brian