[RKDinOKC]

Have some of the original Roundup from the early 70's. Think it is agricultural grade instead of home & garden grade. Gotta be really stingy mixing it up. Sprayed the cracks in my sidewalk leading up to the house. Rained 2 days later. Even though I mixed it much less strength than it says to, 1/4 teaspoon for 2 gallons of water, it killed a 1 foot circle down to dirt out into the yard at the end of each crack. Ended up putting a flower pot on each dead spot so it kinda looked like it was supposed to be like that. It's a good thing stuff will eventually start growing there again.

Usually Roundup all the cracks in the sidewalk, driveway and most of the street in front of my house twice a year. Can hardly tell any of the gallon of undiluted Roundup is missing.