Nozzles for Leeb

[ajd132]

I inherited a trailed Horsch sprayer last year, its currently got 035 and 05 AI nozzles on it. it does have the 25cm spacing also but find when we have used that it is very liable to block the filter etc.

it needs a new nozzles, my other sprayer I run a set of flat fans and a set of 035's. everything is done at 100l/ha. pre ems we generally spray at 10-12kph, fungicides up to 16kph. all combinable crops.
I haven't looked into nozzles for a while, anyone got any thoughts?

 

[warksfarmer]

I inherited a trailed Horsch sprayer last year, its currently got 035 and 05 AI nozzles on it. it does have the 25cm spacing also but find when we have used that it is very liable to block the filter etc.

it needs a new nozzles, my other sprayer I run a set of flat fans and a set of 035's. everything is done at 100l/ha. pre ems we generally spray at 10-12kph, fungicides up to 16kph. all combinable crops.
I haven't looked into nozzles for a while, anyone got any thoughts?

Went through this with our sprayer parts supplier last year and came to the conclusion flat fans are the best all rounder but we’re at 200l for everything and don’t go faster than 10km/hr.

 

[T Hectares]

Don’t think much has changed in the nozzle world, my Leeb is on 50cm spacing and it runs with a 035 defy which I never use and two sets of 03 Bubble jets, normally do everything at 100 ltr/ha but can run both BBJ to do 200 ltr for really good pre em coverage but in all honesty I do most at 100ltr!

 

[Andrew K]

Adam,
I use Bubblejets mostly as drift is minimal and blockages rare.I think it is more important to work safely on windier days which we all encounter all too frequently ,than worry about perfect coverage on the few still days we might get.

 

[Chae1]

Went through this with our sprayer parts supplier last year and came to the conclusion flat fans are the best all rounder but we’re at 200l for everything and don’t go faster than 10km/hr.

What pressure do you run at?

 

[warksfarmer]

What pressure do you run at?

3 ish. We’re on Reds.

flat fan nozzle chart metric uk . - Google Search

www.google.co.uk

 

[MikeNeaverson]

I was a devout Guardian Air man for a decade, then on the advice of Simpers TC I tried BFS Bubblejets and they're way, way better.

I have a 03 blue set for nearly everything on 100l/ha, an 05 brown set for 200l/ha (rarely used) and an 08 set of Defy 3Ds for high water rate potato applications.

 

[Wigeon]

What's the problem with 03 defy? I've used them for some yrs but would be interested to hear what's better. Thanks

 

[T Hectares]

What's the problem with 03 defy? I've used them for some yrs but would be interested to hear what's better. Thanks

No real problem with them, I haven’t used any Pacifica type products for years so don’t have the need for them, they are drifty compared to a BBJ, not that I’m usually out in conditions that are too windy but this farms hilly and exposed and the slightest bit of breeze and the Defys drift
I’ve used BBJs for around 18 years, they give the best combination of drift reduction and coverage out there

 

[alomy75]

A guardian air used at the correct height is hard to beat for drift. Go too high though and they soon fall down. Plus they have a slight angle on them to be used forwards, backwards or alternate. I use guardian air for most things apart from angled defy nozzle for pre ems and a flat fan for beet herbicides. Flat fans really are incredibly drifty; even on a calm day.

 

[davidroberts30]

A guardian air used at the correct height is hard to beat for drift. Go too high though and they soon fall down. Plus they have a slight angle on them to be used forwards, backwards or alternate. I use guardian air for most things apart from angled defy nozzle for pre ems and a flat fan for beet herbicides. Flat fans really are incredibly drifty; even on a calm day.

new to me sprayer came to me with 04 GA on
i had 04bbfs fro old sprayer so thought put some on see which was best
on the yard the ga were drifting round the bbfs wernt,said it all for me

 

[alomy75]

new to me sprayer came to me with 04 GA on
i had 04bbfs fro old sprayer so thought put some on see which was best
on the yard the ga were drifting round the bbfs wernt,said it all for me

A hose pipe won’t drift either. It’s a fine line between drift and efficacy.

 

[David.]

GA do not have a pleasant looking spray pattern from the tractor seat, always look like some have partial blockage, probably to do with fore/aft angle on nozzle.
Bubble Jets have a nice tidy pattern and are less drifty, while giving at least equal coverage.
Tend to work at about 10k for 160L with 03.

 

[alomy75]

I guess it’s a tough question to ask. It’s like what deodorant do you use. No one is wrong. If you want the ‘correct’ answer; the best way is to have a section of each with water sensitive paper traps under each and photos taken to estimate drift. Using something like roundup on a crop of wheat to physically measure drift. Otherwise it’s guesswork. Work has been done just as I’ve described above; not quite sure where you would find it though.

 

[Flintstone]

So, are the advocates of BBJ’s saying they’d also use them for something like Pacifica and pre-drill roundup? Where some of the targets are really small?

Call me out of date, but I’ve always used FF’s when the wind is low, and Guardian Airs when it gets up a bit. Never had an issue. I used BBJ’s once, and felt it was like I had dribble bars on!

 

[alomy75]

So, are the advocates of BBJ’s saying they’d also use them for something like Pacifica and pre-drill roundup? Where some of the targets are really small?

Call me out of date, but I’ve always used FF’s when the wind is low, and Guardian Airs when it gets up a bit. Never had an issue. I used BBJ’s once, and felt it was like I had dribble bars on!

Couldn’t agree more. Flat fans are the ultimate; if you look at any label that gives a recommendation for nozzles it’s 9 times out of 10 a flat fan. But conditions need to perfect for them to work properly. The further you get from a flat fan in terms of drift when hitting small targets is involved the less efficacy can be expected. GA is a ‘happy medium’ in my experience and opinion. You want to be knocking on the doors of drifty but as said before; at 50cm they really are very good. It’s only when you get over that they start wafting. As I ride around; there’s not many sprayers that actually get used 50cm above the target; it is surprisingly close when you measure it.

 

[ajd132]

Couldn’t agree more. Flat fans are the ultimate; if you look at any label that gives a recommendation for nozzles it’s 9 times out of 10 a flat fan. But conditions need to perfect for them to work properly. The further you get from a flat fan in terms of drift when hitting small targets is involved the less efficacy can be expected. GA is a ‘happy medium’ in my experience and opinion. You want to be knocking on the doors of drifty but as said before; at 50cm they really are very good. It’s only when you get over that they start wafting. As I ride around; there’s not many sprayers that actually get used 50cm above the target; it is surprisingly close when you measure it.

this is the beauty of the Horsch as the boom levelling is so good, you can use a flat fan for longer. on my Bateman I have a flat fan and then switch to guardian air when it gets windy. will probably do similar with the Horsch.

thanks for all the advice and help everyone it is greatly appreciated.

 

[Chae1]

Hope I inherit a Horsch Leeb sprayer 1 day!

 

[Clive]

I inherited a trailed Horsch sprayer last year, its currently got 035 and 05 AI nozzles on it. it does have the 25cm spacing also but find when we have used that it is very liable to block the filter etc.

it needs a new nozzles, my other sprayer I run a set of flat fans and a set of 035's. everything is done at 100l/ha. pre ems we generally spray at 10-12kph, fungicides up to 16kph. all combinable crops.
I haven't looked into nozzles for a while, anyone got any thoughts?

answer depends on how many you can use at the same time on the 25cm spacing, Leeb spec varies as this added a LOIT of extra cost to the machine - we have a mixture of multiple 02 and 025's on switchable quad bodies at 25cm and can do anything 80L - 400 L. at optimum pressure the 02's will block sometimes though

The results we have had with this system are notably so much better than we ever had with previous 50cm single nozzle booms - in part thats the multi step nozzle selection keeping pressure optimal but also the boom height control - ag chems have never worked so well here are they seem to now, Big step forward

 

[ajd132]

answer depends on how many you can use at the same time on the 25cm spacing, Leeb spec varies as this added a LOIT of extra cost to the machine - we have a mixture of multiple 02 and 025's on switchable quad bodies at 25cm and can do anything 80L - 400 L. at optimum pressure the 02's will block sometimes though

The results we have had with this system are notably so much better than we ever had with previous 50cm single nozzle booms - in part thats the multi step nozzle selection keeping pressure optimal but also the boom height control - ag chems have never worked so well here are they seem to now, Big step forward

I’m not sure if we can do that on this one. We have big fields generally so are quickly up to correct speed so not sure if that stuff is really worthwhile.
everytime we try to use 25cm it just blocks.