Blackgrass

Chris F

Staff Member
Media
Location
Hammerwich
This is the Blackgrass Thread on TFF.

A lot of us are struggling with blackgrass and we can use this thread as a central discussion point.

On The Farming Forum, Tags allow lots information to be linked. This is the link to the blackgrass tag on TFF for doing more research:

https://thefarmingforum.co.uk/index.php?tags/blackgrass/

This will allow us to build up a compendium of thoughts, ideas & experience - knowledge transfer from farmers to farmers.
 
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Matt77

Member
Location
East Sussex
Very confusing this year, everything late drilled and same pre em program but have fields that, I thought historically clean, are grubby and others that grubby last few years are looking clean enough for a quick rogue, main differences are weather!! which I can’t control, can’t get rain at the perfect time all the time!! Bloody good idea (y)
 

turbo

Member
Arable Farmer
Location
lincs
On the whole very pleased with my control this year except the 2 fields of wheat after osr that didn’t get any c max last year but not silly amount in there by historical standards. The avedex contractor had a blocked pipe or run low for about 5 meters and you can see that it works very well.
 

Gormers

Member
Location
east yorkshire
Terrible control by my own levels this year although some may think it’s ok . Back to the plough every year or one in two at the least . Osr dropping by 100 ac replaced with s barely and pulses . Gonna hurt but can’t carry on with 20 % of acreage in osr

Same here
Dropping Osr all together
Don’t think I’m going to yoke the plough on though
 

Matt77

Member
Location
East Sussex
On the whole very pleased with my control this year except the 2 fields of wheat after osr that didn’t get any c max last year but not silly amount in there by historical standards. The avedex contractor had a blocked pipe or run low for about 5 meters and you can see that it works very well.
A3AAFF84-67BF-4B03-BF08-F2C5DBC8FE5F.jpeg

Avadex, in my opinion, has worked very well these last few years, I applied this field in the dark with my home made 12m machine, sprayer definitely got to the edge as I have fixed GPS tramlines but the Avadex spreader I would have done by feel, (tired) so maybe not quite to the edge, cutting it off with ride on mower last week.
 

turbo

Member
Arable Farmer
Location
lincs
View attachment 803106
Avadex, in my opinion, has worked very well these last few years, I applied this field in the dark with my home made 12m machine, sprayer definitely got to the edge as I have fixed GPS tramlines but the Avadex spreader I would have done by feel, (tired) so maybe not quite to the edge, cutting it off with ride on mower last week.
Yes you can see here anywhere the spreader came away from the outside and it’s going to get the same treatment as yours next week
 

farmerm

Member
Location
Shropshire
What is this blackgrass you speak of? I am sure my wild oats and cleavers can smother it out what ever it is... I was listening to a recent talk from an organic producer, he has less blackgrass now he is organic than when he was farming conventionally... The key to controlling blackgrass is not chemical it is having an appropriate crop rotation.
 

Green oak

Member
Location
Essex
I think this a great thread. I could talk about blackgrass every day from 2012 till today. And what I’ve done. From ploughing after two years of direct drill crops. From drilling on a frost first wheats in November. Spring barley for three years. To fallow under EFA for two years. 4 ltrs of crystal 3 defy. The list goes on. But the biggest winner for me is. Close your eyes when you see drills going late September early October.
 

Matt77

Member
Location
East Sussex
What is this blackgrass you speak of? I am sure my wild oats and cleavers can smother it out what ever it is... I was listening to a recent talk from an organic producer, he has less blackgrass now he is organic than when he was farming conventionally... The key to controlling blackgrass is not chemical it is having an appropriate crop rotation.
Sorry I’m going to disagree here, I would of years ago, my rotation has grown lots which has probably helped I guess but it doesn’t stop it, I contract farm a small amount for a sheep farmer, first wheat this year after many years of sheep grazing, my combine or anything other than my combination drill hasn’t seen that field and he’s got the odd blackgrass plant, the combi drill was pressure washed before use as I don’t normally use it, I’m strip till now, and he brought in the seed, not from us, I believe this was in the seed.
 
Trying to avoid ploughing here. Drill date has been the biggy. I have fields that are historically bad for bg that are almost clear this year as they were drilled last few days of Oct. it obviously needs an integrated approach; I’ve been using the rolls on stubbles to get a chit before cultivation, then using the rolls after cultivation to force another chit then the aforementioned later drilling. Growing more peas and spring barley. The barley is the most successfully spring crop for control as I’m swamping bg out with high seed rates.
Did anyone else leave bg seed on the surface for a few weeks last summer for it to bake out/radiate on the surface?
 

farmerm

Member
Location
Shropshire
Sorry I’m going to disagree here, I would of years ago, my rotation has grown lots which has probably helped I guess but it doesn’t stop it, I contract farm a small amount for a sheep farmer, first wheat this year after many years of sheep grazing, my combine or anything other than my combination drill hasn’t seen that field and he’s got the odd blackgrass plant, the combi drill was pressure washed before use as I don’t normally use it, I’m strip till now, and he brought in the seed, not from us, I believe this was in the seed.
Buying it in is my fear I do pull a handful of blackgrass plants each year. I did have a even distribution of BG plants in my barley 2 years ago, a couple of plants per ac, and for a while though it was the seed... but on inspection is was growing 50:50 in the rows and in between the rows :scratchhead: Haven't found any this year... yet
 

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Written by Jamie Day

A trading update from animal genetics business Genus says trading in the first four months of the current year, to October 31st 2019, has seen volumes, revenues and adjusted profit grow across its PIC and ABS pig and cattle divisions. The global pig business is benefitting from rising pigmeat prices in China, following the African […]

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