Lawn Guys Please Help!
 

3 weeks ago I had Bermuda sod put down in my backyard where there was once weeds and/or Zoysia.

Now the Zoysia is starting to grow up through the Bermuda, which I don't want. What do I need to spray/apply to kill the Zoysia but keep the Bermuda?

Thanks for any help!

Did you Round up before the sod?
If not I think you will have a hard time as I don't know if the MSMA will take out the Zoysia in Bermuda the way it will kill St Augustine in Bermuda.
Check it out but MSMA has worked for me in killing invaders in bermuda

You are screwed. The only thing that will kill Zoysia is Round Up and it takes multiple applications. The Round Up will kill your Bermuda too.

I would just leave it. Now you have a lawn with highlights!