Glyphosate ..... adjuvant ??

Bob lincs

Member
Arable Farmer
We only ever use Round Up Flex here , never at high rates / ha . I’ve never been disappointed with the job it has done . No messing with adjuvants and concoctions trying to get cheap stuff to work better , I don’t think at the end of the day the saving is that great .
 

7800

Member
Location
cambridgeshire
A lot of these branded adjuvants are just ammonium sulphate with a wetter and the price tripled
Which would be the best wetter to mix with AS ? Crop oil or non ionic wetter ?
This would be by far the cheapest and best option
 

Brisel

Member
Arable Farmer
Location
Midlands
A lot of these branded adjuvants are just ammonium sulphate with a wetter and the price tripled
Which would be the best wetter to mix with AS ? Crop oil or non ionic wetter ?
This would be by far the cheapest and best option

AS just ties up the calcium cations in your water by competitive salting, getting to them before they get to the glyphosate. No other adjuvant properties at all but great for not locking up a third of the glyphosate. If you have the means to store bulk ammonium sulphate then yes, it would be cheaper than buying Synchro/Firebrand/Atak 500 g/litre ready made. I've no idea what else goes into these branded AS solutions to boost efficacy so would defer to a more knowledgeable expert on this.

Oil vs wetter depends on what you're trying to hit. Waxy plants like big osr volunteers would benefit from some oil. Smaller targets like 1 leaf blackgrass would benefit from wetter producing smaller droplets more likely to coat more of the fine leaves.
 

robbie

Member
BASIS
What about using both wetter and oil for example full rate activator 90 at 0.1% spray volume with half rate cropspray 11e at 0.62%

That would surely give the best of both worlds and not cost a fortune.
 
Interesting. Have you either calculated the amount of vinegar to add, or alternatively tested the water? Or just going on the fact that it works?

My chemistry is a bit rusty, but would it be that the ph of the acidifying agent is important, but also the molar concentration???

I'm all for using the cheapest solution.

Going by the smell of it, x-change water conditioner is propionic acid, and it is priced considerably dearer than propcorn.
Just did that to start and it worked so stayed with it. Mind you now that the tallow amine has gone I've upped the rate of glyphosate by 20% as I found that 2.5 litres was a bit hit and miss.
 

Andy26

Moderator
Arable Farmer
Location
Northants
Perhaps it's a water conditioner as opposed to an adjuvant. It wouldn't be listed then...

After many hours of research I'm trying Li 700 with generic Glyphosate here this year. So far I have used it when spraying winter barley volunteers prior to drilling OSR, and I've seen the quickest kill in years.

I used 2l/ha 360g/l Glyphosate + 0.25 Li 700 at a water volume of 100 l/ha. De Sangosse did recommend an additional water conditioner e.g. X-change, if the water is very hard.

I do plan to do a trial with different Glyphosate rates and Li 700 rates, with and without X-change on some Vol OSR prior to wheat drilling, IF I get time to mess about. I'll take some pics if I do get chance.
How did you get on with Li700, draw any conclusions?
 
Sprayed grass off 10 days ago with rostate i think they call it, hasnt killed very well hopeess, strongest mix as well.

Rosate is pants. I wouldnt bother with it. Sooner pay 2 quid a can more for something decent.

Ive recommended or witnessed the use of a myriad of glyphosate products on everything from a full blown crop of wheat to permenant grass with spearthistles 4 feet high.

Best to stick with recognised brands.

De Sangosse make a fine range of adjuvants. Use Li700 or Validate. Job done. No guessing or messing.
 

tw15

Member
Location
DORSET
Usually use Exchange @250 ml HA. This spring we used Validate @250 ml HA and the difference between the two is amazing . From now on Validate is my choice . De Songosse better look after me at cereals now :D:D .
 

Brisel

Member
Arable Farmer
Location
Midlands
Validate is around £10.40/litre. At 0.25 l/ha that's £2.60/ha or more than another litre of glyphosate. Great for cutting through waxy cuticles on plants like cranesbill or willowherb. It would help knocking down anything hardened by age or weather. I'll try some next autumn against Kyleo on big osr volunteers.

upload_2019-5-24_9-11-24.png


X Change is around £3.80/litre. In hard water that's 0.25 l/ha or £0.95/ha

upload_2019-5-24_9-8-13.png
 

tw15

Member
Location
DORSET
True it is not cheap as you say . Price ain't everything its the job it does is what matters as well as costs . It really helps get the glyphosate into waxy leaves as well as lowering ph of water . Has crossed my mind I could probably cut glyphosate a little bit to help reduce cost a bit say around 1/2 lt ha less on situations where you would be using higher rates but being mindful on the lower rates as not to cut back too much .
 

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