I am new to chickens and working on my run. My chicks are only 2 weeks old so it will be a while before they are out there, but I worry about the weeds/plants that grow in the only area of my yard the run will work. I do not knkwbwhat kind the low growing weed is. Also, morning glory type vines grow on the ground in that area too. No grass. What can I do go rid the area of these? I can't use weed killer can I? Dig them up? Till? Please help! Thanks!