Oxalis in the Lawn
I have an ever-growing problem with Oxalis in my lawn. To be specific, I believe it to be Oxalis Corniculata. I practice an organic program with my lawn, mowing it at the highest mower height, and it's doing very well. But the Oxalis is attempting to take over. When I see it, I attempt to pluck it out, but it's difficult to get the entire plant and obviously not terribly effective. What can I do to stem the tide, so to speak, of Oxalis spreading throughout my lawn?