Shawn from Post Falls, Idaho writes
We recommend that you perform a test (jar mix) of the pre-emergent herbicide that you would like to apply as a tank mixture with Vessel 3 Way Herbicide first prior to application. We recommend applying the selective post-emergent when the weeds are actively growing (it is a little late in the season now) and the pre-emergent prior to the weeds emerging. Be sure that your type of turf is labeled for application of both products.
Answer last updated on: 10/03/2016