Autumn herbicide use in Spring.

[Beefbullock]

Would you still use Autumn pre emergence products such as Avadex, Liberator Crystal Defy etc as a go to Spring pre emergence recommendation. Or given that we have missed a 4 month sowing period utilise a pre drilling dose of glyphosate and cut out some of the residual products. We have fields we regard as low medium and high risk and use a stack effect system as required to control grass weeds. But given the lower potential yield and returns this next year are fellow growers returning products with no intention or need to use it. We will discuss with our agronomist but they will always want to sell the products. Many thanks in advance.

 

[bobk]

No

 

[ajd132]

Don’t waste the money or product

 

[ollie989898]

Only you can decide based on the timing and expected weed burden. I have used liberator in the spring and PDM but I would save the avadex and crystal for next autumn.

The reduced dose of liberator is never going to halt a blackgrass apocalypse but certainly helps, particularly with broad leaved weeds: I have known crops stay clean enough to not require any SU later.

 

[bobk]

Spring barley and blackgrass , sooner stay in bed

 

[teslacoils]

Can you? Yes.
Would you? Depends.

April sown spring barley may get avadex in fields after oats. Most will just get a contact blw spray. In the main I want undressed seed, no preem , and warm soil with seedbed fert so the crop grows like stink.

 

[bobk]

Then falls over ,

 

[teslacoils]

Then falls over ,

My spring barley doesn't fall over. Usually it goes from bright green so leave a week. Come back and the heads have all fallen off.

 

[bobk]

My spring barley doesn't fall over. Usually it goes from bright green so leave a week. Come back and the heads have all fallen off.

Mine falls over , usually in green state .

 

[Beefbullock]

My intentions are to put late down winter wheat where was originally planned in the autumn. This would have been pre em’d with crystal and some defy where needed. Winter barley has been shelved and replaced with Spring barley. Normally winter barley would have avadex plus a robust pre em. My thoughts were to scrap the idea of Avadex and use the pre em on spring barley but also loose the pre em on wheat and revert to a dose of Pasifica across the whole for this year with the aim to hit the grass weeds and as many blow as possible and reduce the number of passes required through the crop.

 

[bobk]

Where are you ?

 

[teslacoils]

My intentions are to put late down winter wheat where was originally planned in the autumn. This would have been pre em’d with crystal and some defy where needed. Winter barley has been shelved and replaced with Spring barley. Normally winter barley would have avadex plus a robust pre em. My thoughts were to scrap the idea of Avadex and use the pre em on spring barley but also loose the pre em on wheat and revert to a dose of Pasifica across the whole for this year with the aim to hit the grass weeds and as many blow as possible and reduce the number of passes required through the crop.

I'd be a tad concerned about Pacifica on January drilled wheat.

 

[ollie989898]

I'd be a tad concerned about Pacifica on January drilled wheat.

Is it even legal?

 

[Beefbullock]

Where are you ?

Central Midlands

 

[bobk]

Central Midlands

England or Ireland ?

 

[Beefbullock]

I'd be a tad concerned about Pacifica on January drilled wheat.

We wouldn’t be thinking of applying until April

 

[Beefbullock]

England or Ireland ?

England

 

[bobk]

England

We have no blackgrass in these parts

 

[teslacoils]

Is it even legal?

Think so.

But I've April applied to well established winter wheat and it's pretty keen.

I suppose if I could drill January wheat then personally I'd still apply a low rate of liberator first in preference say 0.3lr/ha. Just because I've sown December wheat and not put the flufenacet on and regretted it.

 

[czechmate]

Think so.

But I've April applied to well established winter wheat and it's pretty keen.

I suppose if I could drill January wheat then personally I'd still apply a low rate of liberator first in preference say 0.3lr/ha. Just because I've sown December wheat and not put the flufenacet on and regretted it.

Ha ha. I had an agronomist who hated me doing parts of fields. Anyway I did do a half field of ww with Pacifica one spring. It really did show what a kicking the Chem gave the crop