But don't you hire roguing gangs? What is the difference between rogue and roundup?
Blackgrass chemical attack
- Thread starter warksfarmer
- Start date
I do. But if you are considering roundup you are way beyond levels than you could rogue.
Roguing is really only viable when it’s at very low levels. You can easily spend £50/ha on fields that from the road look completely clean.
GeorgeK
Member
- Location
- Leicestershire
It's one of those years, even the cleanest farms round me have patches. I fallowed my arable last year which isn't ideal but this year's crops are pleasingly clean. My stewardship flowers looked clean last year but this year there's a sprinkling of BG all over and some thick patches, I think the sheep over the wet winter made it worse by trampling the soil followed by a cold spring where the flowers didn't grow.
- Location
- Lincolnshire
My worse bg is after ab15 stewardship, which itself followed spring oats and spring linseed. Although before those was wheat which was a complete carpet of BG. So it's an improvement . Blocked drill Coulter's have not helped. Will keep plugging away pulling some out. But I think it will go down to grass.
- Location
- Essex
You're caught between the devil and the deep blue sea. Early drilled, good chance of too much BG. The later you go, the less competitive the crop is at emergence and the BG fills in the gaps for you.
One year and it was worse after. Couple of flushes in the autumn, nothing grew in the spring so scratched the top and rolled. Nothing grew so thought I had won. Drilled osr and never seen blackgrass like it. Glyphosate was the answer
The first picture is from 2013 where I had sprayed a patch out in the previous wheat crop.
The second shows a patch of charlock can shade the blackgrass from glyphosate.
Spray your patch out now is my opinion!!
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l'ordinary bonville
Member
- Location
- N Yorks
For me any autumn sown crop needs full rates of herbicides if BG is a problem.
That means avadex and a full pre em FFCT, with a partner. Then use post em if Atlantis still has an effect.
The idea of spring cropping, cover crops, etc is simply to get to a point where a full autumn herbicide stack will work on subsequent autumn cereals. Anything less is undoing the work of cultural control.
Grass has never "eradicated" BG. We used to have half the farm in 2 year or 4 year leys then 3 or 4 autumn cereals. Our BG problem originated in a grass field. You could see heads of BG when mowing for 3rd cut silage.
True fallow seems to produce a constant bank of seed return. We disced a field every 3 weeks one year through the summer and still had heads appearing 6" high
That means avadex and a full pre em FFCT, with a partner. Then use post em if Atlantis still has an effect.
The idea of spring cropping, cover crops, etc is simply to get to a point where a full autumn herbicide stack will work on subsequent autumn cereals. Anything less is undoing the work of cultural control.
Grass has never "eradicated" BG. We used to have half the farm in 2 year or 4 year leys then 3 or 4 autumn cereals. Our BG problem originated in a grass field. You could see heads of BG when mowing for 3rd cut silage.
True fallow seems to produce a constant bank of seed return. We disced a field every 3 weeks one year through the summer and still had heads appearing 6" high
Daniel
Member
- Location
- Mildenhall, Suffolk
Creeping in from the edge, bet there was once a Heston baler dropped its first bale here after coming from another farm?
And a patch about 100 metres by 12 appearing, not as thick but would take hours to rogue.
And a patch about 100 metres by 12 appearing, not as thick but would take hours to rogue.
- Location
- Lincolnshire
Well, I'm well in the roguing now and into the bad bits. I'll say that most of the odd ones are emerging from under a stone or some trash; lots has come from the crack following the dry April; and and gap in the wheat has produced huge plants.
Are yout going to roundup that strip I had a pice like that went to rogue it when I saw it just went back and put roundup in sprayer and sprayed it .
ollie989898
Member
On a lot of arable farms I know, they would be running a topper along that edge just to stop stuff seeding and creeping into the field. Wants a half a sprayer pass of glyphosate up the side no?
- Location
- Lincolnshire
ollie989898
Member
Exactly the same as wild oats. A winter germinated monster vs a 2 tiller wonder that germinated in the spring.
- Location
- Lincolnshire
It's only 5 ha but I can see it taking all week.
yellow belly
Member
- Location
- south west lincolnshire
They both give a big problem the following year
if it stay dry hot and sunny the bg seeds produced will be less dormant so later drilling will work better
- Location
- Lincolnshire
Pondering this morning whilst spraying off a bare patch in rape. Even thick rape has levels underneath and we really only have BG after rape this year.
another thing is the amount of nitrogen winter wheat, osr and winter feed barley get must be super charging this stuff.
winter malting barley seems to outcompete it really well and with only 100kg of N on it doesn’t make what is there massive.
discussing on twitter last night and a few people saying they have a lot in spring crops. Have we changed the population dynamics with spring crops? Instead of loads of winter germinating BG it now just grows all year?
another thing is the amount of nitrogen winter wheat, osr and winter feed barley get must be super charging this stuff.
winter malting barley seems to outcompete it really well and with only 100kg of N on it doesn’t make what is there massive.
discussing on twitter last night and a few people saying they have a lot in spring crops. Have we changed the population dynamics with spring crops? Instead of loads of winter germinating BG it now just grows all year?
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Definitely