Fully removing Zoysia from lawn

StripeLife

LawnSite Member
I have a customer that has a lawn full of about 75% Zoysia and the rest is 25% perennial Rye and weeds (Zone 6). He wants all of the lawn to be 100% fescue blend. I planned on spraying the whole lawn with some round up quickpro then aerating and seeding followed by a starter fert app. I have no clue if this will fully kill all the Zoysia as I've heard horror stories of it coming back. Another idea I had was to use a sod cutter and take up as much as possible but I don't think I'll be able to get all the deep roots of the Zoysia. Any ideas on how to effectively get rid of this stuff?
 

sjessen

LawnSite Fanatic
Location
Knoxville, Tn
Not a chem guy so take this with a grain of salt.

We wanted a fescue lawn but had zoysia. Sprayed the lawn with roundup, waited 2 weeks, sprayed again, waited 2 weeks and sprayed a third time. Got a pretty good kill.

Tenacity will kill zoysia in fescue. Just have to be careful to not use too heavy of a concentration.
 

takervader

LawnSite Senior Member
Location
Alabama
Yeah, gly it all. I mean soak it. Its tough like bermuda. Wait to see what comes back and hit it again and you should be fine to do whatever.
 

Crazy 4 grass

LawnSite Platinum Member
Not a chem guy so take this with a grain of salt.

We wanted a fescue lawn but had zoysia. Sprayed the lawn with roundup, waited 2 weeks, sprayed again, waited 2 weeks and sprayed a third time. Got a pretty good kill.

Tenacity will kill zoysia in fescue. Just have to be careful to not use too heavy of a concentration.

Yes! This is spot on. Just keep spraying and waiting to ensure its completely gone.
 

greendoctor

LawnSite Fanatic
Location
Honolulu, Hawaii
Pylex + Prograss or Tenacity + Prograss if it comes back. Pylex or Tenacity + Glyphosate + Sethoxydim as the kill before re seeding
 

greendoctor

LawnSite Fanatic
Location
Honolulu, Hawaii
Zoysia is rather intolerant of Prograss or Ethofumesate. Effect does not happen right away. Read the label. Says do not use on Zoysia. Why? Because it damages the Zoysia severely.
 

nickg13

LawnSite Member
Location
NY
Number of glypho applications depends on how good your coverage is. I usually do it in one. 3-5 days between is enough.

It's important to remember glyphosate is effective only on actively growing plants, so be sure to water the zoysia as if you want it to grow: feeding it is leading it to death.
 
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