Thank you, luckily it’s only it one section of my yard which we keep well mowed, we just had a huge rain though so everything grew fast. Our tortoise won’t be in this area ever, but we are weeding soon before winterIt's dock. And the reason you have a "huge patch" is because there are millions of seeds on one seed stalk. You need to get a shovel and dig up those plants. They have a long carrot-like root and if you leave even a small piece of root the plant will grow back. Whatever you do, don't let it go to seed!