Will Roundup kill Zoysia grass?

carol – posted 19 April 2001 06:21

We are tired of Zoysia looking dead for half the year and crowding out our green grass nearby. Will Roundup kill the zoysia? And if so, what do we do after that? CAn we just dig it up and plant other seed, or do we need to put in sod? We’ve dug out the zoysia down to about a foot, three times. It just comes back and chokes out the new grass we planted. Need some help here! Thanks.

seed – posted 20 April 2001 15:43

Carol, Roundup will kill zoysiagrass and should really be used before any excavation. Because it’s easier to get penetration when there is plenty of zoysia leaf canopy on the surface to take up the Roundup

Also, one application of Roundup isn’t enough to kill zoysiagrass or other perennial grasses such as bermudagrass. Plan on three good applications to get about 99% of it. Then excavate the rest.

Phil