mega blackgrass.

[snipe]

only been dealing with blackgrass for about 4years so still a steep learning curve. have a field of osr drilled at 60cm row widths, been a thick crop all season its about 5ft tall. i have just noticed some blackgrass heads about 8 inches above the osr. have never seen in grow that tall, has any one else. i was planning to try and smother it out in a different field next year with some hybrid barley, but not if it can grow nearly 6 ft tall.

 

[Badshot]

only been dealing with blackgrass for about 4years so still a steep learning curve. have a field of osr drilled at 60cm row widths, been a thick crop all season its about 5ft tall. i have just noticed some blackgrass heads about 8 inches above the osr. have never seen in grow that tall, has any one else. i was planning to try and smother it out in a different field next year with some hybrid barley, but not if it can grow nearly 6 ft tall.

In a nutshell it will grow about 6 inches taller than whatever it's competing with.

 

[horizontal]

only been dealing with blackgrass for about 4years so still a steep learning curve. have a field of osr drilled at 60cm row widths, been a thick crop all season its about 5ft tall. i have just noticed some blackgrass heads about 8 inches above the osr. have never seen in grow that tall, has any one else. i was planning to try and smother it out in a different field next year with some hybrid barley, but not if it can grow nearly 6 ft tall.

It's been like that with us for years - please don't believe anyone that tells you that you can smother blackgrass. It will grow up to six feet tall here in rape.
This year any gap in the canopy has allowed blackgrass to come through and some plants have over 50 tillers each.

 

[yellow belly]

bg always comes through in wide drilling or where blocked coulters happen in beans but does not often outgrow them because it needs nitrogen to grow tall

my problem in rape is that which germinated a month ago in the bottom because of the cold spring

 

[Swiss Toni]

I would try hybrid barley, and spring beans in your rotation, just drill them with your rapid this time!