Pre or Post emergance.

[shumungus]

Grassland farmer trying to grow winter wheat for wholecrop. What are the pros and cons of pre emergence vs post emergence spraying? Do you use the same chemicals?
TIA.

 

[Clive]

Grassland farmer trying to grow winter wheat for wholecrop. What are the pros and cons of pre emergence vs post emergence spraying? Do you use the same chemicals?
TIA.

does it matter if you are going to chop it ? maybe neither is the answer ?

 

[Steevo]

I always aim to use pre-emergence as soon after drilling as possible.

The chemicals can be similar or different. Some are suitable for use for both, others are not.

Your agronomist will be advise I’m sure.

 

[shumungus]

does it matter if you are going to chop it ? maybe neither is the answer ?

Why would it not matter? Trying to grow pure wheat not undersown with grass.

 

[Clive]

Why would it not matter? Trying to grow pure wheat not undersown with grass.

it’s not got to go though a combine so surely a few grass weeds don’t matter and are still edible ? herbicides are not cheap

 

[shumungus]

I always aim to use pre-emergence as soon after drilling as possible.

The chemicals can be similar or different. Some are suitable for use for both, others are not.

Your agronomist will be advise I’m sure.

Just trying to get an insight without relying on the guy who is ultimately trying to sell me stuff. This forum has a lot of knowledgeable people lurking about in it.

 

[shumungus]

it’s not got to go though a combine so surely a few grass weeds don’t matter and are still edible ? herbicides are not cheap

True, I understand there is a cost involved but surely the less non wheat plants that grow the more nutrients are then available to the wheat helping it along. Have grown Wheat before without pre em and had a lot if problem with weed grasses trying to choke it.

 

[Clive]

True, I understand there is a cost involved but surely the less non wheat plants that grow the more nutrients are then available to the wheat helping it along. Have grown Wheat before without pre em and had a lot if problem with weed grasses trying to choke it.

herbicides can reduces yields sometimes, it’s not all positive

depends very much on situation but i wouldn’t be chasing every weed in the field if growing for whole crop

 

[shumungus]

Fair enough, but thought I would try prevention instead of cure for a change. I guess you don't rate Wholecrop Wheat as a high value crop compared to milling Wheat etc but I would like to make the most out of it I can. If you don't chase the weeds around here you would soon have a field of garbage.

 

[alomy75]

Fair enough, but thought I would try prevention instead of cure for a change. I guess you don't rate Wholecrop Wheat as a high value crop compared to milling Wheat etc but I would like to make the most out of it I can. If you don't chase the weeds around here you would soon have a field of garbage.

You’re quite right. Keeping it (relatively) clean keeps your options open for future years. Normally; pre-em would be all you need. I say normally because if we have another deluge this winter then the pre em option could potentially kill the crop and you would have been better peri/post emergence. Many people are going on a mixture of both this year. Soft(ish) pre em followed by a post em. (Crop will take a post em better than pre if it’s another wet one)

 

[shumungus]

You’re quite right. Keeping it (relatively) clean keeps your options open for future years. Normally; pre-em would be all you need. I say normally because if we have another deluge this winter then the pre em option could potentially kill the crop and you would have been better peri/post emergence. Many people are going on a mixture of both this year. Soft(ish) pre em followed by a post em. (Crop will take a post em better than pre if it’s another wet one)

Thanks, this is the basic kind of information I need. As I said before I'm a grassland farmer the crop thing is all new to me.

 

[thorpe]

it’s not got to go though a combine so surely a few grass weeds don’t matter and are still edible ? herbicides are not cheap

clive this comment amazes me

 

[e3120]

it’s not got to go though a combine so surely a few grass weeds don’t matter and are still edible ? herbicides are not cheap

Big difference between edible and feed value.

 

[Woody j]

Grassland farmer trying to grow winter wheat for wholecrop. What are the pros and cons of pre emergence vs post emergence spraying? Do you use the same chemicals?
TIA.

Wait and go post emergence then you can also include an insecticide, lots of bydv about here last year

 

[Digester Man]

You definitely don't want a meadow grass problem, get it sprayed. Constant battle here to keep the damn stuff at bay.

 

[DrDunc]

Do arable farmers actually know what they're doing, or do they just rely upon what their 'agronomist' tell them to do in the brief spells of activity between beach and piste?

 

[Brisel]

The OP is a stock farmer...

Do you read the posts before commenting?

 

[DrDunc]

The OP is a stock farmer...

Do you read the posts before commenting?

Err, it was reading the somewhat 'informationally challenged' arable fermer comments that led to my slightly disparaging view of their knowledge

This wee hill fermer favours the pre emergence approach. The thinking being that the soil, even high up here next to the clouds, is warm enough for weeds to grow when sowing in the autumn.

Post emergence chemicals might work out a bit cheaper than pre-ems, but you're risking having to get on soil that's suffered a post drilling deluge. A winter cereal crop in a grassland rotation will never be as 'clean' as the chemically sterilised, organic matter starved, worm free arable only dirt reaped by our livestock free brethren, but done right it's a great way to regenerate productivity in sustainable mixed farming



There, I believe that's plenty of the current fashionable buzz words to satisfy the AI Web chat trawlers

 

[David.]

Saw agronomist today.
He is very wary of Luximo on pre-em this year.
Particularly not on DD.

 

[DrDunc]

Saw agronomist today.
He is very wary of Luximo on pre-em this year.
Particularly not on DD.

Why?

Price, performance, or not enough commission?