Kosta from Macomb, Michigan writes
Can Q4 Plus and TZone SE be mixed and applied together? If not, I already have TZone and am looking for something to safely add and spray together that will kill established Crabgrass. Thank you.
We wouldn't recommend mixing Q4 Plus Turf Herbicide with TZone as they both have the same active ingredients with Q4 containing 1 extra. The combination would burn your lawn. At this time (August), it would be best to apply a pre-emergent in the spring as anything applied to the crabgrass right now would have little effect.
Answer last updated on: 08/22/2024