What water volume do you use for Glysophosate?

[Funny Farmer]

The label says 80 - 250 L/HA which is a huge range.
I've tended to go at 200 L/HA to give everything a "good wetting" but wondered what others are doing and why.

 

[MrNoo]

90l/ha here no issues

 

[DrWazzock]

It’s one of those where they say reduced water volume can actually make it work better. I suppose if you’ve hard water then if you use less water there’s simply less of it to neutralise the glyphosate.
I tend to use 190 litres for everything though. Saves having to mess about with different nozzles and calibrations and reduces the risk of a screw up.

 

[HarryB97]

100 for most jobs.175-200 for spraying off 3-4 year grass leys depending on field size compared to the spray tank.

 

[Flatlander]

Dr wazzock is well informed. Less water tends to do a better job. I was always using higher water on couch here in Canada but struggled to get good control. Tested the water and it was very hard so treated the water and lowered water volume to around 100l or 5 us gallons and it works better and faster. Generic glysophate needs good water to work well I find,Monsanto RU is more forgiving.

 

[PSQ]

Less water, and before it was banned a bit of Li700 always speeded up the kill.

 

[DrWazzock]

Oddly I’ve found the 450g/l formulation to work better than the 360 even allowing for the difference in concentration and using same g/ha.
It’s as if whatever they use to bulk up the 360 formulation somehow dulls its effectiveness.

 

[deleted user 837354]

Oddly I’ve found the 450g/l formulation to work better than the 360 even allowing for the difference in concentration and using same g/ha.
It’s as if whatever they use to bulk up the 360 formulation somehow dulls its effectiveness.

Possibly a different glyphosate salt? Or the stiffer formulation is a bit posher and contains something the cheaper 360 didn't.

 

[deleted user 837354]

Less water, and before it was banned a bit of Li700 always speeded up the kill.

Can use Validate instead now. Li-700 was always a bit vicious I think for the operator handling the stuff.

 

[MrNoo]

Oddly I’ve found the 450g/l formulation to work better than the 360 even allowing for the difference in concentration and using same g/ha.
It’s as if whatever they use to bulk up the 360 formulation somehow dulls its effectiveness.

Yes found the same, not used 360 for years here

 

[Sam Partridge]

Less water, and before it was banned a bit of Li700 always speeded up the kill.

still got some old stuff in a can but personally never used it, is it nasty?

 

[JMM]

Used to go at 1 litre in 35 litres of water in the Airtec, generic 360, did a cracking job, easy to whack the rate up to 70 litres of water / 2lt chem on the go for heavy patches of blackgrass. I had to go up restrictor size to 40 thou to legally use Atlantis / Pacifica so it's now applied in 80 litres of water.

 

[Spencer]

100 here.. plenty of pressure for coverage and a swift forward speed to push pattern into crop. Always get a good kill.

 

[Phil P]

Usually 90l/ha here.

 

[alomy75]

150 for everything here; 1 sprayer tank per 20ha block.

 

[neilo]

150 l/ha for everything but beet here. Hard (mains) water ALWAYS conditioned if no rain water left in the tank.

 

[alomy75]

150 l/ha for everything but beet here. Hard (mains) water ALWAYS conditioned if no rain water left in the tank.

I’m going to do my beet with 150 too this year…100 is sooooo drifty. I must say though I’m only doing so because I’ll be using conviso and able to spray later without having to target pinheads

 

[yellow belly]

100 litres water with half a litre holder
water moderately hard to hard

when I used liquid fertiliser mixing glyphosate and spraying for pre drilling was the fasted kill

 

[alomy75]

100 litres water with half a litre holder
water moderately hard to hard

when I used liquid fertiliser mixing glyphosate and spraying for pre drilling was the fasted kill

How much N would you put on?

 

[Zippy768]

Used to go at 1 litre in 35 litres of water in the Airtec, generic 360, did a cracking job, easy to whack the rate up to 70 litres of water / 2lt chem on the go for heavy patches of blackgrass. I had to go up restrictor size to 40 thou to legally use Atlantis / Pacifica so it's now applied in 80 litres of water.

Are you still an Airtec user?
Can't be many around. Still have an 18m we use for everything here