Getting rid of miscanthus

[Superted820]

Does anyone have any tips on how to get rid of this crop. It’s been in for several years and the rhizomes were harvested roughly 10 years ago. The ones left behind have been harvested for the cane since the. We now want to put it back to grass. It’s been sprayed twice now with glyphosate. Thinking we’d flail top it a couple of times before ploughing, but I’m guessing it isn’t going to be easy.
Any help would be appreciated.

 

[Andrew]

Does anyone have any tips on how to get rid of this crop. It’s been in for several years and the rhizomes were harvested roughly 10 years ago. The ones left behind have been harvested for the cane since the. We now want to put it back to grass. It’s been sprayed twice now with glyphosate. Thinking we’d flail top it a couple of times before ploughing, but I’m guessing it isn’t going to be easy.
Any help would be appreciated.

We did some a few years ago for someone. They had it harvested as normal in the spring. Then when it was just sprouting again it was sprayed off. Chisel ploughed and disced a few times, then drilled with ryegrass. We had 3 cuts a year for 4 years.

Then sprayed off and back into the rotation.

 

[deleted user 837354]

Put it into italian ryegrass and keep cutting it. Some shoots will emerge, when you destroy the ley let the shoots all come up at least 12 inches tall, the whack with full rate glyphosate + adjuvant of choice.

You will get the field clean.

 

[Davrosia]

How about without using glyphosate?

 

[Davrosia]

...Only 2-3 acres to revert to pasture but must avoid glypho due to local sensitivities. To make matters messier, the crop hasn't been cut last year due to wet April and then cut back but left on the ground this year, so going to be heavy going whatever we do. Keen to get done this year as pasture required next year. Smallholding, UK

 

[deleted user 837354]

If you don't use herbicides then you're going to have to dig up every shoot that appears. It may be possible to pull rhizomes to the surface with repeated cultivations but I have not seen this done.

 

[Pieces_of_Eight]

...Only 2-3 acres to revert to pasture but must avoid glypho due to local sensitivities.

Local whats...?

 

[deleted user 837354]

Local whats...?

They mean no one likes the smell.

 

[Pieces_of_Eight]

Is there another herbicide that will do it?

Could the rhizomes be lifted and sold?

 

[deleted user 837354]

Is there another herbicide that will do it?

Could the rhizomes be lifted and sold?

I'd be interested to know if a graminicide might knobble it, possibly not as some of them do not pass through the internodes very well. A stiff dose of laser or similar I suspect would give it a big headache but it would not be cheap.

Carfentrazone-ethyl would be my next thought as I know it is used on sedges in other parts of the world but again, I'm not certain it would reach the rhizomes well enough.

 

[Davrosia]

If you don't use herbicides then you're going to have to dig up every shoot that appears. It may be possible to pull rhizomes to the surface with repeated cultivations but I have not seen this done.

Thanks, that's what I figured. Time consuming and expensive.

 

[chaffcutter]

Do they not dig the rhizomes out with a spud harvester? Bed form up then harvester instead of destoner and art them off?

 

[Davrosia]

This is an interesting idea

 

[Pieces_of_Eight]

Do they not dig the rhizomes out with a spud harvester?