How much water do you use when spraying?

[Theswede]

After reading multiple threads about different spray nozzles, I realised that people use quite different amount of water per hectare when spraying. Personally I use 200 l/ha if the label doesnt say anything else, except when spraying "earth reacting" herbicides then I use around 300 l/ha.

I have always heard that if I use less than 200 litres the result of the spraying will be reduced. But after reading the different threads I found out that most people use alot less water. So how much water do you use when spraying? Different rates for herbicides and fungicides? What are your reasons for using that amount?

 

[Kidds]

Use over 1000l/ha in some of our fruit crops to get fungicide coverage.

 

[SilliamWhale]

Between 98 and 131 for most things

 

[Scrambler]

Mostly 120 lt/ha. Diquat at 250 - 300 lt/ha

 

[Steevo]

Between 98 and 131 for most things

That's precise!

 

[Steevo]

100l/ha across the board here.

 

[PSQ]

100 to 120 l/ha, depending on how the number of fills divides into the total area.

But of course, never less than the minimum water volume stated on the label...

 

[bovrill]

I've favoured 167l/ha up until recently (works well with the tank size) with 120l where I can get away with it.
But this year I've done most at 100 - 120 l and even gone at 80l for some stuff, I reckon with at least as good results.
02 air induction nozzles, the really long ones. Very impressed with them.

 

[Jetemp]

@PSQ its legal to apply pesticides in reduced water volumes, down to 10% of label rate in at lot of circumstances.

 

[Nearly]

That's precise!

2000l tank, 12 ha fields
166.6666 litres per ha. ....or less.

 

[marcot]

130 liters/ha for me. With my 03 nozzles means I can travel at around 10km/hr with a pressure of around 3 bar....

 

[PSQ]

@PSQ its legal to apply pesticides in reduced water volumes, down to 10% of label rate in at lot of circumstances.

I was just covering my back!

 

[bovrill]

166.6666 litres per ha.

I'm glad someone else does that rate. I normally get funny looks when I say that's the rate I use!

(Easier to get to with an 03 nozzle than 200l/ha, as well as squeezing an extra ha from each 1000l of water)

 

[Brisel]

After reading multiple threads about different spray nozzles, I realised that people use quite different amount of water per hectare when spraying. Personally I use 200 l/ha if the label doesnt say anything else, except when spraying "earth reacting" herbicides then I use around 300 l/ha.

I have always heard that if I use less than 200 litres the result of the spraying will be reduced. But after reading the different threads I found out that most people use alot less water. So how much water do you use when spraying? Different rates for herbicides and fungicides? What are your reasons for using that amount?

The major spray manufacturers like Bayer, BASF etc all have downloadable risk assessments that permit reduced water volume applications.

I do 100 litres/ha unless for a specific purpose e.g. diquat or eyespot coverage in a thick canopy. There's lots of trials work done on reduced volumes - in most cases there is no reduction in spray efficacy if everything else is right. For glyphosate it works better at low volumes due to the concentration gradient. Generally, contact only material ought to be applied at higher water rates, especially in big plant canopies like potato blight sprays.

 

[yellow belly]

mostly use 100 l per ha

in Australia they do spray at 30 k with an 03 jet and 30 l per ha

 

[TheEarlOfMoray]

100l/ha here too for everything. Used to do 200 but see no difference using 100 and doubles the speed of the job. Agronomist sheets usually recommend 160l/ha

 

[Happy]

120lt/ha here.
Keeps things simple for me. Sprayer has 1200lt tank so all products x10 whatever the recommendation sheet says.

 

[Lincsman]

After reading multiple threads about different spray nozzles, I realised that people use quite different amount of water per hectare when spraying. Personally I use 200 l/ha if the label doesnt say anything else, except when spraying "earth reacting" herbicides then I use around 300 l/ha.

I have always heard that if I use less than 200 litres the result of the spraying will be reduced. But after reading the different threads I found out that most people use alot less water. So how much water do you use when spraying? Different rates for herbicides and fungicides? What are your reasons for using that amount?

Some chemicals are better on low water, lots of small drops with more active in them can work better than big more diluted drops.

 

[mo!]

If a chemical says minimum 200L/ha then you allowed to use it at 100L at half rate. It's the concentration that matters.

 

[Poncherello1976]

Normally 100 or 120l/Ha depending on nozzles. If the sheet says 200, I usually go up to about 150/160, but 200l would mean only doing 6 ha which would mean a lot of time spent not spraying!