Blackgrass

Fromebridge

Member
Location
Glos
I cannot believe that if someone has a blackgrass problem that they would consider early drilling.

Do these chemical company's rely on the chemical stack for the early driller to return their investment ?
Agree, better to get 80% of a late October-emerging black-grass population than 95% of a September-emerged one.
 

Jo28

Member
Location
East Yorks
Otherwise at 1000/acre why would I not wholecrop everything? Something doesn't add up as if it did 3.5t/acre at 150 that is only 525.
 

Mc115reed

Member
Best way make money out of black grass areas is dig a monster of a lagoon where the blackgrass was and fill it with digest get paid £1 a m3 to take it dig multiple lagoons if needed too keep money coming in too
 

Brisel

Member
Location
Dorset
Baling the straw would take some seed off the field. If you were to go down the route of repeated shallow cultivation to stimulate further flushes you would have less of a sloppy mess on top if it came wet later on.

Leaving the straw would help create a microclimate of moisture around the seed to help it chit. Blackgrass likes darkness to germinate hence the usual recommendation to lightly cultivate after harvest if there is moisture in the topsoil and rain forecasted.

What is your establishment system, soil type, rotation and following crop?
 

Jon

Member
Location
South Norfolk
Badly infested W Wheat
Bale or chop straw?
Will chopped straw slow down germination of BG seeds?
Thoughts please
My thoughts,

Don't cut the wheat until all the blackgrass seed has shed.

Bale or chop , it doesn't matter.

Plough as soon as you can post harvest.

Spray off resulting blackgrass emergence, (I've sprayed off two flushes before Christmas once).

Late drilled spring crop.
 

Gormers

Member
Location
east yorkshire
Baling the straw would take some seed off the field. If you were to go down the route of repeated shallow cultivation to stimulate further flushes you would have less of a sloppy mess on top if it came wet later on.

Leaving the straw would help create a microclimate of moisture around the seed to help it chit. Blackgrass likes darkness to germinate hence the usual recommendation to lightly cultivate after harvest if there is moisture in the topsoil and rain forecasted.

What is your establishment system, soil type, rotation and following crop?
Heavy land with bands of warp in places
Min till.
Osr WW .W Beans. WW .WB .
This field will probably now have to go SB x2 then see what’s what
 

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Latest IRONCLAD trials providing excellent results!

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Latest IRONCLAD trials providing excellent results!

Since the launch of Ironclad at Cereals earlier this year, the feedback from famers has been excellent. The latest efficacy trials, conducted by i2L Researchnear Newcastle, has provided further robust data against current market standards.

Caged arena trials assessed the level of crop...
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