Will round-up work on rushes?

Deepsouthwest · 29-04-2014 10:30pm #1

Burned off a field over a week, all nicely turned in colour at this stage, all except for a few patches of nice green rushes. Will I have to hit them with mcpa or does the round-up just take a little longer to work?

Conmaicne Mara · 29-04-2014 11:00pm

Only used it via a paint roller (homemade weedlicker), killed the hell out of the rushes. Did you use any sticker in the spray, wondering did it run off instead of penetrating. Or maybe like you say the spray just takes longer.

hughjohn · 30-04-2014 7:18am

It will work when a sticker is used and stays dry a good while aftr been sprayed.

Deepsouthwest · 30-04-2014 7:51am

hughjohn wrote: »

It will work when a sticker is used and stays dry a good while aftr been sprayed.

Used a sticker and had a grand dry spell after, so hope it's just taking a bit longer than the grass

hughjohn · 01-05-2014 9:23am

Mind you it does depend on the rate used.
I sprayed it out at 3 litres / acre cos I've seen people put it out at 1.5 and only knocks them back.
If your grass is brown and rushes not yet started to turn you could be in trouble. They will take longer to die but you'd want to be seeing some effect once the grass turns.

_Brian · 01-05-2014 9:25am

Roundup will kill them slower. Even low concentrations in weed lockers kills them slowly.
We've mixed it to 80:1 and rushes are dead after maybe six weeks.

Charliebull · 01-05-2014 7:42pm

It will kill them, maybe you missed a few spots,
I sprayed rushes with mortone Easter Sunday the they are fooked

_Brian · 01-05-2014 9:09pm

Charliebull wrote: »

It will kill them, maybe you missed a few spots,
I sprayed rushes with mortone Easter Sunday the they are fooked

It's a great feeling seeing them die off !!

Geomy · 01-05-2014 9:17pm

Is mortone systemic ?

Will round-up work on rushes?

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