Lori from Cedar Rapids writes
Surflan AS Herbicide is not labeled to control bedstraw. (Keep in mind that Surflan AS has been discontinued, so you will not be able to purchase this product if you do not already have it.) If you have existing bedstraw to control, then you can use a broadleaf post-emergent herbicide such as Prime Source Triad SFZ Select Herbicide.
The only pre-emergent active ingredient we are finding for any kind of galium is dithiopyr (Dimension 2EW) which is labeled for galium odoratum only.
Answer last updated on: 08/19/2021