Blackgrass
- Thread starter Chris F
- Start date
We are doing spring barley followed by spring oats, they pay well for us.
Wasn’t there loads of chemicals that worked then aswell?! We’ve had fields catch fire and it’s made zero difference to the long term blackgrass.
Didi it make much difference to the short term blackgrass? There is a natural response in many grasses to fire - it breaks dormancy. I've seen the results of rotationally burning pasture in Australia - better than a reseed!
Anyone else fed up with blackheads experts?.Was talking to an old farm worker in his 80s today about we are told to do to control black grass late drilling chitin spring drilling etc and he just said that is all we done 60 years ago.He also said you cannot get rid of it with chemicals.He said top it 2or3 times in the summer to exhaust the plant and it will die . Anyone tried this
ollie989898
Member
ollie989898
Member
From what I have seen on my travels around here if your BG hasn't shown by now I don't think it will...
- Location
- Spilsby Lincolnshire
- Location
- East Sussex
Wait until it has set some seed but they arent viable it will die then
- Location
- Matching Green
Went to the BASF battling black grass conference last week where we saw some Luximo treated plots. It is another Autumn residual that they were at pains to point out needed to be used as part of a stack with all the current cultural controls despite being a new mode of action. Interestingly the molecule has been around since the late 1970s and was only briefly marketed in Asia as a rice herbicide. It is not a silver bullet but the Luximo plots had the best control.
Plots were at NIAB TAG Hardwick site. They said that delayed drilling should be applied to spring crops as well as Autumn ones but also demonstrated that you can make the problem worse by going too late in the Autumn. The plots showed September/ October/ December drilling, all about 25th each month, and the best control was in the October drilled plots with all treatments. Basically the November drilled crop wasn't competitive enough and in September the soil was too dry for the residuals to perform.
Plots were at NIAB TAG Hardwick site. They said that delayed drilling should be applied to spring crops as well as Autumn ones but also demonstrated that you can make the problem worse by going too late in the Autumn. The plots showed September/ October/ December drilling, all about 25th each month, and the best control was in the October drilled plots with all treatments. Basically the November drilled crop wasn't competitive enough and in September the soil was too dry for the residuals to perform.
Experts? If we all listened there would be better rotations, no second wheats, more cultural control & the problem would have gone away by now. It hasn't, & there's a multi billion dollar industry on the back of blackgrass control from ag chems to whizzy cultivators to special drills...
As above, topping it does reduce the number of viable ears but it just puts up more ears at a lower height. I've got a wet clay patch at the end of a field that has been the source of blackgrass for the rest of the farm. I took it out for stewardship & put in a nectar flower plot. I've been topping it hard to prevent seed return & it is still putting up fresh ears!
yellow belly
Member
- Location
- south west lincolnshire
I topped the bg strips in a poor crop of rape a 5 years ago when the bg was headed and the anthers out
Then sprayed the field off at rape desiccation time
Not a lot of bg in the following wheat
Topping needs to late enough to slow the plants to have put heads up and flowers out
The bg heads take a couple of weeks to be mature and produce viable seed
With later planted spring crops any bg that flowers produces flower in a warmer or hotter time of year July which is more likely to be less dormant
The second year spring crop then has less bg in it when we had avadex in beans the bg that germinated was also later and usually only just flowers in August when glyphosate spray around 20 august eliminates it
Interestingly the February crawler treated rape has very little bg in it but sprayed it off as it had no set pods
If it had all railed in February could have planted another crop
Then sprayed the field off at rape desiccation time
Not a lot of bg in the following wheat
Topping needs to late enough to slow the plants to have put heads up and flowers out
The bg heads take a couple of weeks to be mature and produce viable seed
With later planted spring crops any bg that flowers produces flower in a warmer or hotter time of year July which is more likely to be less dormant
The second year spring crop then has less bg in it when we had avadex in beans the bg that germinated was also later and usually only just flowers in August when glyphosate spray around 20 august eliminates it
Interestingly the February crawler treated rape has very little bg in it but sprayed it off as it had no set pods
If it had all railed in February could have planted another crop
ollie989898
Member
GeorgeK
Member
- Location
- Leicestershire
An example of predation, stems cut and seedhead in the process of being stripped by a variety of creatures. Quite a lot like this round the headlands
Trees?
Heretic!
They used to burn or drown those in medieval times...
Too wet for most trees. Countryside Stewardship is much more friendly to the planet than trees. I've got enough trees already.
You've trained your slugs well
In the spring we spread fertiliser to get the wheat to grow and green up This does exactly the same to the blackgrass Has anyone ever done nothing to the wheat and sprayed the black grass and let the wheat and blackgrass struggle and hopefully the blackgrass die before putting on any fertiliser?
average farmer
Member
- Location
- North Notts
