Yes it does work and will get rid of bindweed, that's if you can get any as the manufacturers are running very very low on stock and we can't get any in the garden centre where I work. Dave.
whats the difference if any between the gel and the regular spray in terms of effectiveness.
My spray has two settings, one fine and one thats more of a foamy stream so it can be put exactly where its needed.
the difference baz is that if you have weeds in amongst other plant you can just touch the weed and not worry about accidentally getting any spray on any other plant.