Pat from Linn, Mo writes
Since we do not carry the Gly Star Plus, we cannot say for sure whether it can be mixed with GrazonNext HL. We can tell you, though, that most herbicides are labeled as safe to be mixed with other EPA-registered herbicides. We recommend that you read and follow the label instructions for each product to prepare a tank mix test and see if the two products are indeed compatible.
Answer last updated on: 07/13/2018