Hans from Beaumont, Ca writes
Hi-Yield 2, 4-D Selective Weed Killer is not labeled for oxalis or woodsorrel. 2,4-D on its own generally will not provide adequate control of this weed. We are happy to provide another recommendation if you would like to tell us what type of lawn you have and how much area are you treating. We sell many pre-emergent and post-emergent herbicides that are labeled for this weed. You can also view more information about this weed and both environmental and chemical control in this article from UC Davis.
Answer last updated on: 12/24/2015