Jay from Loganville, Ga. writes
I am considering Atrazine to kill or at least control the poa annua. I have a zoysia lawn, however, I have had some centipede creep in over the years mixing with the zoysia. Once it is out of dormancy, can it be applied then as well? I have tried the expensive pre-emergents but they seem to be a waste of time and money.
We cannot recommend that you use any Atrazine product on your zoysiagrass since it will not be labeled as safe to use on this type of grass. A better choice woud be something like Certainty Herbicide which is labeled for post-emergent control of poa annua in both zoysia and centipede grasses. If you are having trouble with pre-emergent control of this weed, then you may need to adjust the timing of your application and/or consider rotating the active ingredient you are using.
Answer last updated on: 02/06/2019
