Vencops I know this was not your question but, when using straight Gly, it has been my experience, that in several weeks, more or less you again will have new items sprout up. Some where you have already treated and some in a new area(s). I explain that to my customers up front. I just spot spray a few times a season to keep those area's under control. That way neither you or the customer is in a position to get upset. They get what they want and you are not making trips back and forth re- spaying for nothing. Just trying to save you some frustration. In my opinion total kill for the season is un-realistic just using Gly. Those with more experience may offer better advise.