90% DRT and pre em sprays

kamloops · Sep 1, 2018

syngenta claim that 90% drift reduction nozzles give the same results as any other for pre ems.
The idea is that a courser droplet is sufficient for pre ems and the ability to ensure even coverage in all weather is better than fine drifting from other nozzles.

Has anyone used these nozzles? Obviously no good for fungicides but may be a good option for pre em sprays?

Mdt · Sep 1, 2018

I use the teejet ones really like them for pre em. In the pic teejets on the right and 3d defy on the left.

dirty harry · Sep 1, 2018

Lechler ikdt twin outlet ceramics here, brilliant nozzle
Cheers dh

Brisel · Sep 1, 2018

This seems curious. For years Syngenta endorsed the fine quality angled fan (Hawk, Defy &3D) and Hypro's Guardian Air (Amistar) . Now they are pushing a much more coarse air induction nozzle. Why the shift? Was the level of drift underestimated in the real world of on-farm spraying?

All that work showing how much poorer the coverage was for coarse nozzles on clods with water sensitive paper. :scratchhead:

herman · Sep 1, 2018

Probably make more money selling 90% DRT nozzles ????

spikeislander · Sep 2, 2018

Brisel said:
This seems curious. For years Syngenta endorsed the fine quality angled fan (Hawk, Defy &3D) and Hypro's Guardian Air (Amistar) . Now they are pushing a much more coarse air induction nozzle. Why the shift? Was the level of drift underestimated in the real world of on-farm spraying?

All that work showing how much poorer the coverage was for coarse nozzles on clods with water sensitive paper.

Yes I’m confused too, I think they are endorsing higher water rates as well which I can possibly see the merit in but it does make you wonder the value of trials when they seem to have done a complete u turn regarding droplet size etc ?

Grass And Grain · Sep 2, 2018

Depends how windy it was and at what forward speed when they did the trial.

Mr Charisma · Sep 2, 2018

Brisel said:
This seems curious. For years Syngenta endorsed the fine quality angled fan (Hawk, Defy &3D) and Hypro's Guardian Air (Amistar) . Now they are pushing a much more coarse air induction nozzle. Why the shift? Was the level of drift underestimated in the real world of on-farm spraying?

All that work showing how much poorer the coverage was for coarse nozzles on clods with water sensitive paper.

Having spoken to someone at cereals on the Syngenta stand about their display on drift for pre ems and their movement away from 3d nozzles they have had residues of pre em on orchard fruit I believe from a orchard next door to a block of land which had wheat on it , they are therefore apprehensive about future problems and any withdrawal of any pre ems

They had just as good results with this course jet but at 200 lts / ha , maybe to much water for some but might be worth while in the end if we keep some of these important chems

At least they are prepared to back it up with a good discount of the nozzles

https://www.syngenta.co.uk/news/application/syngenta-extends-90-drift-reduction-nozzle-offer

Edit , just having seen the price I'm. not sure how much discount compared to my usual source !!!!!!

Feldspar · Sep 2, 2018

At a recent NIAB meeting there were some quite uncomplimentary remarks about the approach to higher water rates and coarser nozzles on BG control.

David. · Sep 2, 2018

Sounds like a 04 bubblejet and a nice steady 200l/ha soaking will still be ok then

Round and round in circles...

Mr Charisma · Sep 2, 2018

Feldspar said:
At a recent NIAB meeting there were some quite uncomplimentary remarks about the approach to higher water rates and coarser nozzles on BG control.

?????

SilliamWhale · Sep 2, 2018

Feldspar said:
At a recent NIAB meeting there were some quite uncomplimentary remarks about the approach to higher water rates and coarser nozzles on BG control.

In a way we're going round in circles. I think even a basic flat fan will do the job at about 130-150 l/ha. Personally (not blackgrass mind) I think aim for a bit of soil moisture, aim for a a water rate above 130 litres and try not to do it in the wind. Sure add low drift nozzles, or point them forward etc. as it doesn't cost the earth but all of this isn't revolution and I'm not even sure its evolution.

Spraying is a very simple job really.

newjames · Sep 2, 2018

Best thing to make pre ems work is wet soil

Brisel · Sep 2, 2018

SilliamWhale said:
In a way we're going round in circles. I think even a basic flat fan will do the job at about 130-150 l/ha. Personally (not blackgrass mind) I think aim for a bit of soil moisture, aim for a a water rate above 130 litres and try not to do it in the wind. Sure add low drift nozzles, or point them forward etc. as it doesn't cost the earth but all of this isn't revolution and I'm not even sure its evolution.

Spraying is a very simple job really.

Many don't have the luxury of plenty of spraying capacity!

125 l/ha, 4 bar, alternating angled Bubblejets, no more than12kph here. My best attempt at a compromise between low drift and good coverage.

Just a farmer · Sep 29, 2018

I've been using 035 Defy 3d nozzles @ 140l/ha travelling at 10-12km/h this season when conditions allow as I find this rate provides a good intermedium between good coverage and good workrate.

That being said this is my first season owning a set of Teejet TTI 110-05 and due to drift concerns I think well over half my acreage has been done with these nozzles. I think they are a great nozzle for stopping drift and getting the product on in a timely fashion but I do find myself being skeptical over how well they will perform.

Has anyone else used these this season? Did anyone use them last season? How did they perform?

Below is my highly scientific coverage experiment of a clod wrapped in a piece of paper comparing the Defy 3d with the TTI. No guesses which is which.

Brisel · Sep 29, 2018

What water volume did you use with the TTIs? 200l/ha?

Just a farmer · Sep 29, 2018

Yes, 200l/ha there running them 2bar at 10km/h.

Brisel · Sep 29, 2018

To get the same coverage as the 3D I think you’ll need more water.

Grass And Grain · Sep 29, 2018

3d in calm conditions, TTI if you really must go in the wind, or the 3d with drift reducing product if a bit breezy?

Will 1594 · Sep 29, 2018

Brisel said:
Many don't have the luxury of plenty of spraying capacity!

125 l/ha, 4 bar, alternating angled Bubblejets, no more than12kph here. My best attempt at a compromise between low drift and good coverage.

So you don’t fancy 300 Ltr .05 s and 8.5 k

90% DRT and pre em sprays

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Up to 25%

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50-75%

75-100%

100% I’ve had enough of farming!

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