Rich from Indiana writes
We would suggest doing a compatibility test before tank mixing Q4 Plus Turf Herbicide & other herbicides together. Using a small jar, mix both products according the tank mixing instructions on the more restrictive labeling of the two and look for separation and clumping. It should be noted that Q4 should not be tank mixed with products that contain the same active ingredients nor that require a surfactant.
Answer last updated on: 04/24/2023