I had a problem a few years back with Sandburs growing on the edges of my property where my neighbors lack normal watering. At that time I bought pel lime from our local coop and they stated this would clear up the problem and it did. I've noticed that this is coming back along my street curbing and in various parts of my grass that is growing very well. I've read that Bayer Advanced will kill this, but I have used Ortho Weed B Gone Max in the past to kill dandelions, but could use some advice on the Sandburs. Thanks!!