J from Hillsboro writes
Vetch is not on the Surflan Pro label, so while it certainly could stop the germination and the vetch from emerging, we cannot say for sure since it has not been tested. We couldn't find vetch on the product label of any other pre emergents either so you may want to check with your local ag department or cooperative extension office to see what others in your area may be using for vetch control.
Answer last updated on: 04/25/2016