Neighbours Dad actually as he does all the gardening for them. I asked my neighbour what he had used to kill the grass on our side like this and no apology came for the yellow streaks and long dead areas on my lawn edge, no "I'll mention to him that he's used too much to just kill the weeds on our side" she just looked at them and said "it'll grow back" . I didn't know what to say but am so pissed off just now. Got up as can't sleep for pissed-off-ness. Not sure if I should mention it to the Dad as she didn't seem bothered enough to.