Gary from St James City, Fl writes
Yes, you can use SpeedZone Lawn Weed Killer Concentrate on established zoysiagrass to control listed weeds. You can apply at a rate of 1.1 oz per 1000 sq ft in at least 1 gal of water. If you have hybrid zoysia, then you may want to test a small area for tolerance before treating the entire lawn.
Answer last updated on: 06/18/2019