OSR postem herbicides

[rickane]

Whats the plan, hard to know how much to spend, but weeds need to be dealt with. Would 2 litres of katamaran turbo or Shadow do job til Kerb in Winter? How much does everyone spend per Ha/

 

[Brisel]

How long is a piece of string? What weeds do you have? What establishment method - how much cereal volunteer pressure do you have?

 

[Chalky]

As above...

We Centium headlands for hedge mustard primarily, then 2L Shadow post em for the quinmerac & to minimise the metazachlor as some rape/wheat/rape in the odd place. Choppers been on, so no early vol pressure- Kerb/Astrokerb December. Got to control poppies etc so no real early choice.

 

[franklin]

Cleavers are susceptable to Elk / Katamaran Turbo to 2 whorls. If you have cleavers, I would use this. Along with a basic graminicide as needed for cereals.

Otherwise Astrokerb / Crawler sequence one way around or the other.

 

[Clive]

clearadra /dash then kerb - job done !

 

[snarling bee]

clearadra /dash then kerb - job done !

A dangerous comment. Cleranda ( I assume thats what you mean by 'clearadra') can ONLY be used on Clearfield varieties.

 

[firsttimefarmer]

Katamaran, falcon and afrisect here!

 

[Brisel]

Clomazone pre em, Falcon + insecticide early post em. Maybe some Fusillade + a fungicide in late October if phoma is rife which will tide it over until Astrokerb in Nov/Dec. Targets are hedge mustard, cleavers, cereal volunteers, poppies, wild oats & sterile brome.

I used to use clomazone on the headlands, full rate Naspar TDI (Novall) split 2/3 pre em then 1/3 early post em with volunteers & CSFB, then followed up late with generic Kerb. A dry September meant that the Naspar didn't work very well on poppies or cleavers & hedge mustard was running away from the headlands.

Closima (Cleranda + quinmerac) + Dash in the next couple of weeks on the Clearfield here due to cleaver pressure.

 

[principal skinner]

Got a few spring barley volunteers dotted about in our osr, heading in with metazachlor over the weekend, will this give any control on them?

 

[shakerator]

No

 

[principal skinner]

No

Sae some grass weeds were susceptible so was hoping I might get a little control! The Astrokerb will tidy them up anyways.

 

[rickane]

AMG cleavers sheperds purse are main. volunteer wheat/barley too. Thinking 2l shadow now, sown 2.5 weeks, been dry and germination slow. and a few slug pellets too

 

[Brisel]

Volunteers are best treated post em with contact ACCase materials which are much cheaper than Shadow/Kat Turbo. That said, Shadow is the best product on Shepherds Purse though a decent rate of straight metazachlor will do a fair bit. Clomazone pre em would do cleavers but it may be too late for that now if it has emerged, so it's back to Shadow/ Kat Turbo.

 

[Hampton]

Good dose of naspar will do cleavers up to 2 whorls

 

[Brisel]

What do you call a good dose? I split mine 1.5 pre em then 1 litre post em to mitigate the risk of heavy rain washing it down to the seed.

 

[Hampton]

What do you call a good dose? I split mine 1.5 pre em then 1 litre post em to mitigate the risk of heavy rain washing it down to the seed.

One that kills the weeds
I use 2 litres early post, and whilst I agree heavy rain is a risk, you have to ensure that enough qui merc is going on for cleavers and poppy, and enough metazachlor goes on to control the amg (although obviously you need to be pre-em of many weeds for the chem to do the job.

 

[Brisel]

Just 2 litres for you then. Just interested to know how others approach the same issues.

 

[Hampton]

Just 2 litres for you then. Just interested to know how others approach the same issues.

Often think I should go pre-em, but ours was up in three days this year and had chit ted in 2 so glad I didn't.
On a side note, naspar tds has got riddiculously expensive! You would have thought coming off patent might have made it cheaper!
At least we have astrokerb now, galera and fox are rubbish.

 

[Brisel]

Tds has dimethanamid P like Shadow I think. Novall has been revoked so there is no alternative.

Astrokerb is extortionately expensive too. I have switched to clomazone pre em then Astrokerb later, having the fallback of straight metazachlor early post em or Galera depending on what weeds come up. The spend on Centium/Astrokerb is the same as full rate Naspar TDI fb generic Kerb.

 

[Hampton]

Tds has dimethanamid P like Shadow I think. Novall has been revoked so there is no alternative.

Astrokerb is extortionately expensive too. I have switched to clomazone pre em then Astrokerb later, having the fallback of straight metazachlor early post em or Galera depending on what weeds come up. The spend on Centium/Astrokerb is the same as full rate Naspar TDI fb generic Kerb.

No, still going
http://www.belchim.co.uk/pdf/Label/NASPAR_Label.pdf

Sorry, that auto corrected from tdi to tds and I didnt notice