Question Author
Quite honestly, Robinia, I doubt it was legal for public sale, more likely something one of his agricultural pals got for him. I use roundup ( carefully) on ground elder, which is what he has sprayed it on. When I use roundup the ground elder dies far more slowly than his, which has gone brown and died in less than a week.
I had planned this bit of garden carefully and packed it with spring bulbs of various sorts and vinca minor of varying colours, and then backed it with transplanted foxgloves from my own garden. The poppies were the result of my turning over earth that had not been used for years!
Two years ago the same neighbour sprayed his front garden and virtually killed part of my hedge and one of my pyracanthas which cover the front of my house!! Fortunately, the hedge recovered and even the pyracantha fought back and has produced new growth.
He probably thinks my foxgloves, etc. are weeds and it doesn't matter. Actually I am quite upset. I rarely see him to talk to, but if I do I will probably let him know what I think of his damn spray!!
Oh, I have just produced another rant!