I have a lovely little flower garden, with a fountain that has plantings in it. I have a horrible problem with torpedo grass! My landscaper told me to use a cotton ball to brush the leaves with Roundup. I did this and it hasn’t helped. I have read how to get it out of the yard by heating it with plastic, but I would rather not kill the entire garden if I don’t have to. I have learned that just as the experts say, pulling it out just makes it grow back worse. I am at my wits’ end. Any ideas?